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Wire harnesses are used in industrial equipment, vehicles, displays, energy systems, communication devices, and many other electrical products. But the same harness design cannot work for every application. Current, signal type, temperature, vibration, movement, installation space, and connector design can all affect the final solution. This guide explains common wire harness applications and what OEM manufacturers, engineers, and purchasing teams should consider when selecting a custom wire harness. What Is a Wire Harness? A wire harness is an organized assembly of wires, cables, terminals, connectors, and protective components used to transmit electrical power or signals between different parts of a system. Custom wire harnesses are usually produced according to drawings, samples, connector specifications, or equipment requirements. Compared with installing individual wires separately, a completed harness can simplify assembly, reduce wiring errors, and improve production consistency. Wire Harness Applications by Industry Industrial Equipment and Automation Industrial machinery is one of the most common applications for custom wire harnesses. PLCs, sensors, motors, encoders, relays, switches, HMIs, servo systems, and power supplies often need to be connected within the same machine. The main challenge is the operating environment. Wiring may be installed close to motors, inverters, moving parts, oil, dust, or heat sources. This can affect insulation material, shielding, connector locking, and cable protection. For example, signal cables installed near inverters or motors may require shielding to reduce electromagnetic interference. Equipment exposed to vibration may also need stronger connector retention and strain relief. For industrial projects, the harness should be designed around the machine environment rather than using one standard cable construction for every application. Automotive and Vehicle Electronics Vehicle wire harnesses are used for cameras, sensors, lighting, displays, control modules, switches, motors, battery connections, and many other electronic systems. One important point is that operating conditions vary greatly by installation position. Wiring inside the passenger compartment may face relatively mild conditions, while cables installed near the engine or exterior of the vehicle can experience greater heat, moisture, vibration, and contamination. Exposed areas may therefore require sealed connectors or more resistant cable materials. Conductor size should also match the actual current and cable length. Undersized wire may cause voltage drop or heating, while oversized wire increases cost, weight, and installation space. The correct design comes from balancing electrical requirements with the actual installation environment. Medical and Laboratory Equipment Wire harnesses are commonly used inside monitoring devices, diagnostic systems, imaging equipment, medical displays, laboratory instruments, sensors, and internal control units. These applications often require stable connections and consistent manufacturing quality. Sensitive signals may also require careful routing or shielding to reduce interference. Internal equipment wiring should be distinguished from cables that directly contact a patient, because their technical and regulatory requirements may be different. For OEM medical equipment, the harness should therefore follow the equipment design, customer specifications, and actual electrical function. LCD Displays and Electronic Screens Industrial monitors, medical displays, POS terminals, advertising screens, embedded computers, and other display products often use specialized cable assemblies. LVDS cable assemblies are common in these applications because they transmit display signals between the main board and LCD panel. For this type of cable, connector compatibility and pin assignment are especially important. An incorrect pinout or poor connection may cause flickering, image noise, unstable display, incorrect colors, or no image. Installation space can also be limited. Connector direction, cable length, bending position, and cable flexibility should therefore be confirmed before production. For custom LVDS assemblies, an exact connector part number and clear pinout are usually more useful than a simple product photo. Consumer Electronics Consumer electronics such as computers, cameras, smart devices, audio equipment, and portable products often use compact wire harnesses and cable assemblies. These products frequently use connectors from brands such as Molex, JST, Hirose, JAE, and I-PEX. Because internal space is limited, dimensional accuracy becomes especially important. A cable that is too short may place stress on the connector, while a cable that is too long can interfere with other components. Fine-pitch terminals also require accurate crimping and insertion. Small cable assemblies may therefore require more production accuracy than their size suggests. Robotics and Motion Control Robotic equipment places different demands on wiring because cables may move continuously during operation. A harness inside a fixed control cabinet may remain stationary for years, while a cable on a robotic arm may bend or twist during every operating cycle. Industrial robots, servo systems, automated production lines, pick-and-place machines, and motion control equipment therefore require more attention to cable flexibility, bend radius, conductor construction, routing, and strain relief. Failures often occur near connectors or fixed bending points. Using an ordinary fixed cable in a continuous-motion application may work during early testing but fail much earlier in production. The expected movement should therefore be confirmed before cable selection. New Energy and Energy Storage Systems Battery systems, energy storage equipment, solar systems, wind power equipment, charging systems, inverters, and controllers often contain several different types of wire harnesses. Some connections carry power, while others transmit communication data, sensor signals, or temperature information. Power wiring requires suitable conductor size and connector capacity. Signal and sensor wiring may focus more on stability and interference protection. Outdoor equipment may also require waterproof connectors or additional cable protection. Battery systems can use NTC sensor harnesses to monitor temperature at different points. Because several electrical functions often exist in one system, the harness should be considered as part of the complete equipment design rather than as an isolated cable. Telecommunications, RF, and IoT Equipment Communication equipment often combines several cable technologies inside one device. Routers, wireless access points, GPS devices, IoT products, communication modules, antennas, and industrial wireless equipment may contain power wiring, data cables, display connections, and RF coaxial cables. RF cable assemblies have different technical priorities from ordinary wire harnesses. Impedance, frequency, insertion loss, shielding, and connector type can all affect performance. Common RF connectors include SMA, SMB, MCX, MMCX, I-PEX, and U.FL. For equipment that combines conventional wiring and RF connections, working with one supplier that understands both types of cable assembly can simplify sourcing and technical communication. Home Appliances and Smart Equipment Wire harnesses are widely used in refrigerators, air conditioners, kitchen appliances, cleaning equipment, smart home products, and other electrical devices. They connect control boards, motors, compressors, sensors, switches, heaters, fans, displays, and power supplies. In high-volume production, the harness should be easy to install as well as electrically reliable. Wire color, connector structure, cable length, branch position, and labeling can all affect how quickly and accurately workers complete final assembly. A good harness design can therefore improve both product reliability and production efficiency. Quick Comparison of Wire Harness Applications Application Main Concern Typical Requirement Industrial Equipment Vibration and EMI Shielding, locking connectors, cable protection Automotive Heat, moisture, vibration Sealed connectors, suitable wire gauge Medical Equipment Reliability and signal stability Consistent assembly, controlled routing LCD Displays Signal transmission Correct pinout, compact connectors Consumer Electronics Limited space Small connectors, accurate dimensions Robotics Repeated movement Flexible cable, strain relief New Energy Current and temperature Proper conductor size, environmental protection RF Equipment Signal loss Controlled impedance, suitable RF connectors Home Appliances Production efficiency Clear routing, identification, stable connections How to Choose the Right Wire Harness The best wire harness design starts with understanding what the cable needs to do inside the equipment. Electrical and Signal Requirements Voltage and current determine conductor size, terminal capacity, connector rating, and insulation requirements. Signal type also affects cable construction. A motor power cable, sensor line, digital communication cable, display cable, and RF connection should not automatically use the same wire structure. Sensitive signals may require shielding, twisted conductors, controlled impedance, or greater separation from power wiring. The electrical function should therefore be confirmed before material selection begins. Operating Environment The same cable can perform very differently depending on where it is installed. Indoor electronics usually face relatively stable conditions, while industrial machinery, vehicles, energy systems, and outdoor equipment may experience temperature changes, moisture, oil, dust, chemicals, UV exposure, or continuous vibration. Not every project needs the most expensive material. The goal is to select materials that match the actual environment without adding unnecessary cost. Movement and Installation Space Mechanical conditions are sometimes overlooked during cable selection. If the harness moves repeatedly, flexibility and bend life become important. If it remains fixed, a simpler cable structure may be more practical. Installation space also affects connector orientation, cable diameter, branch position, and bending radius. These details are especially important in displays, robotics, compact electronics, and densely packed control systems. Connector Compatibility Connector identification should be as accurate as possible. Two connectors may look almost identical but use different terminal structures, pitches, locking systems, or mating interfaces. Providing the exact connector part number, pin assignment, and mating connector information helps reduce compatibility problems during sample development. What Information Should You Provide for a Custom Wire Harness Project? A complete drawing is usually the fastest way to start a custom wire harness project. The drawing should show connector part numbers, pin assignments, cable lengths, wire specifications, branch dimensions, and any required sleeving or protection. Electrical information such as voltage, current, signal type, and working environment also helps determine whether the selected components are suitable. Estimated order quantity is useful because material sourcing and production methods can vary between prototype quantities and mass production. If a complete drawing is not available, an existing physical sample can also be used as a reference. However, a sample cannot show maximum current, working temperature, movement, signal requirements, or other operating conditions. Providing both the sample and application information usually gives the manufacturer a better basis for developing the correct replacement. How Are Custom Wire Harnesses Tested? Testing helps confirm that the finished harness matches the drawing and electrical requirements. Electrical Testing Continuity testing verifies that each conductor is connected to the correct terminal. It can also detect open circuits, wiring errors, and unwanted connections. For multi-wire harnesses, this is especially important because visual inspection alone cannot confirm every internal connection. Crimp and Assembly Inspection Terminal crimping affects both electrical contact and mechanical strength. Crimp position, conductor placement, insulation support, and terminal insertion should be controlled during production. Depending on the project, pull-force testing may also be used to check crimp strength. The finished harness should also be inspected for connector orientation, cable dimensions, wire colors, labels, sleeving, and overall workmanship. Special projects may require additional testing according to customer specifications. Standard Cable or Custom Wire Harness? A standard cable is usually suitable when the equipment uses a common interface and does not require special dimensions, wiring, or protection. A custom wire harness becomes more useful when the product requires specific cable lengths, custom pinouts, multiple branches, special connectors, shielding, protective materials, or limited installation space. Customization can also reduce work during final assembly. Instead of preparing and connecting individual wires on the production line, workers can install a completed harness directly into the equipment. For OEM manufacturers, this can improve consistency and reduce wiring errors. FAQ About Custom Wire Harnesses Can I order a sample before production? Yes. Samples can be produced first to confirm fit, wiring, and installation. Can you manufacture from an existing sample? Yes. A physical sample can be used as a reference when drawings are unavailable. Is the MOQ always high? No. MOQ depends on the connector, cable material, and project requirements. Can you help identify an unknown connector? In many cases, yes. A clear photo, dimensions, or physical sample can help identify the connector. Final Thoughts Wire harness requirements vary across industrial machinery, displays, vehicles, robotics, energy systems, appliances, and communication equipment. The correct design depends on electrical function, signal type, connectors, installation environment, and mechanical conditions. RY manufactures custom wire harnesses based on drawings, samples, connector part numbers, and actual equipment requirements. Our capabilities include custom wire harnesses, LVDS cable assemblies, RF cable assemblies, and NTC sensor harnesses for different electrical and electronic applications. If you have a drawing or existing sample, you can send us your connector, cable, and application requirements for evaluation.

Wire harnesses used in vehicles, industrial equipment and robotics are often exposed to continuous vibration. Over time, this can cause wire harness vibration fatigue, including conductor breakage, insulation wear, terminal movement and intermittent electrical faults. This guide explains the main causes of vibration-related harness failures and how proper materials, routing, strain relief and testing can improve reliability. What Is Wire Harness Vibration Fatigue? Wire harness vibration fatigue is mechanical damage caused by repeated movement over time. When a wire bends repeatedly at the same location, the copper strands inside the conductor are subjected to continuous mechanical stress. Individual strands may gradually weaken and break even when the outer insulation still appears normal. This type of damage often develops near connector exits, clamps, branch points and areas where the harness connects components that move independently. As more strands fail, electrical resistance may increase and the circuit can eventually become intermittent or completely open. How Vibration Damages a Wire Harness Conductor Fatigue Copper conductors are flexible, but repeated bending can eventually cause fatigue. Each vibration cycle applies small tensile and compressive forces to the conductor. Over time, these forces can cause individual copper strands to fracture. Fine-stranded conductors are generally more suitable for applications with frequent movement because bending stress is distributed across more individual strands. For high-vibration applications, conductor flexibility should be considered together with current capacity, temperature rating and connector compatibility. Insulation Abrasion Vibration can cause the harness to move against nearby surfaces such as metal brackets, housings, panels or other cables. Repeated contact gradually wears the insulation. Once the insulation becomes damaged, the conductor may contact metal or another circuit, increasing the risk of short circuits, ground faults or signal interference. Proper routing is the first line of protection. Additional sleeves or grommets should be used where contact cannot be avoided. Terminal and Connector Movement Vibration can also affect the connection between terminals and connector housings. Small movements may gradually reduce contact stability or increase contact resistance. This is especially important in sensor, communication and low-voltage circuits, where brief interruptions may cause intermittent faults. Correct crimping, terminal retention and connector locking help reduce this risk. Why Connector Exit Points Are High-Risk Areas The area directly behind a connector is one of the most common locations for vibration-related wire failure. If the cable is unsupported, repeated movement can force it to bend at nearly the same point during every vibration cycle. This concentrates stress close to the terminal crimp. A better design spreads movement over a longer section of cable instead of allowing a sharp bend near the connector. Depending on the application, strain relief may be provided with heat shrink tubing, backshells, overmolding, cable glands or nearby supports. The goal is to control movement without making the cable excessively rigid. Wire Harness Routing for Vibration Resistance Good routing can significantly reduce mechanical stress. Whenever possible, the harness should follow stable structures such as machine frames, chassis sections or equipment panels. Long unsupported cable sections should be minimized because they allow greater movement during vibration. Sharp bends should also be avoided. Smooth routing distributes stress more evenly and reduces the risk of conductor fatigue. Areas where the harness passes through metal panels, brackets or bulkheads require additional attention because these locations can create abrasion points. Protective grommets or sleeves may be used when direct contact with an edge cannot be avoided. How to Reduce Wire Harness Stress Between Moving Components Different components in the same machine may move at different frequencies or amplitudes. For example, a motor, engine or pump may vibrate independently from the main equipment frame. If the harness connecting these parts is pulled too tightly, the movement is transferred directly into the conductors and terminals. The harness should have enough flexible length to absorb relative movement without creating excessive tension. Too much slack should also be avoided because uncontrolled movement can cause rubbing or impact against nearby components. A controlled flexible section is generally more reliable than either a tightly stretched or completely unsupported harness. Conductor Selection for High-Vibration Applications Conductor construction has a direct influence on flexibility and fatigue resistance. Fine-stranded copper conductors are commonly used where continuous vibration or repeated movement is expected. Compared with conductors made from fewer, thicker strands, fine-stranded wire can bend more easily and places less stress on each individual strand. Standard copper is suitable for many industrial applications. In humid, marine or corrosive environments, tinned copper may also be considered because the coating helps improve corrosion resistance. The final conductor choice should be based on electrical load, temperature, environment and mechanical requirements. Choosing the Right Insulation Material The insulation must provide electrical protection while remaining suitable for the mechanical environment. PVC is widely used in general-purpose wire harnesses because it offers good insulation performance and economical processing. XLPE is often used in automotive and industrial applications where higher temperature and abrasion resistance are required. TPU provides good flexibility and wear resistance, making it suitable for moving machinery and other mechanically demanding applications. TPE is commonly used where flexibility and repeated movement are important. Silicone offers excellent flexibility across a wide temperature range, although additional abrasion protection may be required in areas where rubbing occurs. ETFE is suitable for more demanding applications that require good chemical, temperature and abrasion resistance. There is no single insulation material that is suitable for every vibration environment. Material selection should be based on the complete operating conditions. Abrasion Protection Methods Protective materials are often added to areas where mechanical contact cannot be completely eliminated. Corrugated tubing is commonly used in vehicles, agricultural equipment and industrial machinery because it protects the wire bundle while maintaining reasonable flexibility. Braided sleeving provides lightweight abrasion protection and works well where flexibility is important. Heat shrink tubing is frequently used around connector exits, splices and branch transitions. Rubber grommets are especially useful where the harness passes through sheet metal or enclosure openings. Protection should be applied only where needed. Excessively thick or rigid protection can reduce cable flexibility and move the stress point to another location. Strain Relief Design Strain relief helps prevent mechanical forces from being transferred directly to the terminal or crimp. Overmolded strain relief can create a smooth transition between the connector and cable while also providing additional environmental protection. Heat shrink tubing can provide simpler reinforcement for connector exits and branch areas. Connector backshells are often used where additional cable retention, bend control or shielding support is required. Cable glands are commonly used where cables enter control boxes, junction boxes, motors or industrial enclosures. A good strain relief design supports the cable while still allowing controlled movement. Wire Harness Clamps and Mounting in High-Vibration Areas Clamp design and positioning can have a major effect on wire harness vibration resistance. If a clamp is too loose, the harness may move excessively. If it is too tight, the insulation can deform and the clamp edge may become a new stress concentration point. Cushioned clamps are often used in high-vibration applications because they support the harness while reducing direct contact with metal mounting surfaces. The position of the clamp also matters. A support placed near a connector can reduce connector movement, but enough cable length should remain to allow gradual flexing. Common Wire Harness Vibration Failure Locations Connector exits are common failure areas because repeated bending may occur close to the terminal. Metal panel openings can damage insulation when the cable rubs against an unprotected edge. Branch points may become relatively stiff and concentrate movement into a short section of wire. Clamp edges can also cause fatigue if the harness repeatedly bends beside the mounting point. Areas near motors, pumps, engines and other vibration sources normally require additional attention during design review. Identifying these locations before production is more effective than correcting failures after installation. Wire Harness Vibration Testing Vibration testing may be required for automotive, industrial, aerospace or other demanding applications. Depending on the product, testing may include sine vibration, random vibration or mechanical shock. Electrical continuity can also be monitored during testing. This is useful because some failures are temporary. A terminal may lose contact for only a short period during vibration and return to normal once the test stops. Depending on the application and customer requirements, standards such as IEC 60068, ISO 16750, MIL-STD-810 or RTCA DO-160 may be relevant. The test method should match the expected operating environment rather than using the same vibration profile for every product. Automotive Wire Harness Applications Automotive wire harnesses are exposed to different vibration levels depending on their installation position. Harnesses located near engines, transmissions or suspension systems normally experience more mechanical stress than wiring installed inside the passenger compartment. Temperature changes, moisture, oil and other environmental factors should also be considered when selecting materials and connectors. Industrial Machinery Industrial machines may generate continuous vibration from motors, pumps, compressors, spindles and gearboxes. In these systems, routing, cable support and connector strain relief are especially important. Cable protection should also be considered near moving mechanical parts. Robotics Robotic cable assemblies may experience both vibration and repeated flexing. Conductors, jacket materials and routing systems should therefore be suitable for frequent movement. Maintaining an appropriate bend radius is particularly important because excessive bending can shorten cable life even when flexible conductors are used. Construction and Agricultural Equipment Construction and agricultural equipment often combines vibration with dust, water, impact and temperature changes. Wire harnesses used in these environments may require sealed connectors, additional abrasion protection and corrosion-resistant materials. The complete operating environment should be considered rather than vibration alone. Marine Applications Marine wire harnesses may be exposed to both vibration and corrosion. Tinned copper conductors, sealed connectors and corrosion-resistant terminals can help improve reliability in these conditions. Routing should also prevent unnecessary contact with metal structures and areas where water may collect. How to Improve Wire Harness Reliability Improving vibration resistance requires more than thicker insulation or an additional protective sleeve. The conductor, connector, routing, strain relief and mounting system need to work together. The most effective design identifies where movement occurs, controls that movement and prevents mechanical stress from concentrating at one point. For custom wire harness projects, vibration requirements should be considered before production so that conductor construction, connector type and protective materials can be selected correctly. Choosing a Wire Harness Manufacturer For high-vibration applications, the manufacturer should understand both electrical and mechanical requirements. Important project information includes operating voltage, current, temperature range, connector type, installation dimensions, environmental conditions and applicable standards. Providing these details early allows the wire harness design to be optimized before mass production and reduces later modifications. Conclusion Wire harness vibration resistance depends on proper conductor selection, routing, strain relief and mechanical protection. For high-vibration applications, these factors should be considered during the design stage to improve reliability and service life. Frequently Asked Questions Does a vibration-resistant wire harness cost more? It can. High-flex conductors, specialized insulation, sealed connectors and additional protective materials may increase manufacturing cost. Can an existing wire harness be upgraded for a higher-vibration environment? Sometimes. Routing, mounting and abrasion protection can often be improved, but the conductor or connector may still need to be redesigned. Are custom connectors always required for high-vibration applications? No. Standard connectors can be used when their locking, retention and environmental performance meet the application requirements. Is prototype testing recommended before mass production? For demanding or high-vibration applications, prototype testing can help identify mechanical problems before full production begins. What information is needed for a custom wire harness quotation? A wiring diagram, connector information, wire gauge, branch dimensions, quantity and operating environment are usually enough for an initial evaluation.

Heat shrink tubing protects splices, terminals, connector exits, and cable branches. The wrong material or size can cause loose insulation, moisture ingress, or premature cable failure. This guide explains how to choose the right material, wall construction, shrink ratio, and size for a wire harness or cable assembly. What Is Heat Shrink Tubing? Heat shrink tubing is a polymer sleeve that contracts when exposed to heat. During cable assembly, the operator positions the tubing over a wire, splice, terminal, or connector transition and heats it evenly until it conforms to the underlying surface. The tubing creates an insulating and protective layer around the covered area. Depending on the material and construction, it can protect against abrasion, moisture, contamination, and light mechanical stress. Heat shrink tubing usually provides local protection rather than covering an entire harness. Braided sleeving, conduit, spiral wrap, or harness tape may be more suitable for long cable runs. Heat shrink is commonly applied at splices, connector exits, cable branches, and other areas where the diameter changes. Where Is Heat Shrink Tubing Used in a Wire Harness? Crimped and Soldered Splices A crimped or soldered joint may leave conductive metal exposed. Heat shrink tubing insulates the joint and protects it against dust, minor impacts, and abrasion from nearby wires or components. A standard single-wall tube may be sufficient for a dry indoor application. If the splice will encounter humidity, condensation, cleaning fluids, or rainwater, you may need adhesive-lined heat shrink and additional environmental testing. Connector-to-Cable Transitions The point where a flexible cable exits a rigid connector often experiences concentrated bending stress. Heat shrink tubing creates a smoother transition and reduces repeated bending at the same location. Heat shrink does not replace a connector clamp, backshell, or molded strain relief. Cables exposed to frequent movement, strong pulling forces, or continuous vibration may require a mechanical retention feature in addition to the tubing. Wire Harness Branches Cable branches often contain several different diameters. The tubing must pass over the larger harness trunk and still recover tightly around the smaller branch wires. Wall thickness and bend radius also matter at these locations. A thick recovered wall can make a branch too rigid, which may complicate routing or place additional stress on nearby terminations. Wire and Circuit Identification Colored heat shrink can help identify power, signal, and ground circuits. Printable heat shrink sleeves can carry wire numbers, terminal references, batch information, or other traceability data. Color should remain a secondary identification method unless your applicable drawing or standard specifically defines it. Electrical safety requirements and regional color conventions may differ between markets. Single-Wall vs. Dual-Wall Heat Shrink Tubing Single-wall tubing consists of one layer of polymer material. It is widely used for electrical insulation, wire identification, light abrasion protection, and harness organization. Its thin profile makes it suitable for tight spaces and easier to remove during repair. Dual-wall tubing has an outer polymer layer and an inner hot-melt adhesive layer. During heating, the outer wall contracts while the adhesive melts and fills gaps between the tubing and cable. This construction provides better protection against moisture and contamination. Adhesive-lined tubing does not automatically give the finished cable assembly an IP67 or IP68 rating. The final seal also depends on surface condition, material compatibility, tubing size, adhesive flow, assembly geometry, and process control. You must test the complete cable assembly if the application requires a specific ingress protection rating. Application Recommended Construction Reason Indoor electronic harness Single-wall Thin profile and lower cost Wire marking and label protection Clear single-wall Keeps printed information visible Connector exit Single-wall or semi-rigid Supports the cable transition Outdoor cable connection Adhesive-lined dual-wall Improves moisture protection Automotive underbody or marine harness Adhesive-lined dual-wall Helps reduce moisture and corrosion risks Serviceable connection Single-wall Easier to remove during repair How to Select a Heat Shrink Material Polyolefin Polyolefin is widely used in general-purpose wire harnesses and cable assemblies. It offers a practical balance of insulation, flexibility, availability, and processing cost. Common applications include industrial equipment, electronic devices, household appliances, and automotive electronics. Polyolefin products are available in different formulations. Temperature rating, flame resistance, UV resistance, and chemical compatibility vary by product. Outdoor assemblies usually require black, UV-stabilized, or purpose-designed outdoor tubing. PVC PVC heat shrink tubing is often used in indoor electronics, identification sleeves, and cost-sensitive applications. Clear PVC can protect a printed label or allow inspectors to see the connection underneath. Its usable temperature range is generally narrower than that of many high-performance polyolefin, PTFE, FEP, or silicone products. Check both the continuous operating temperature and short-term temperature peaks before using PVC near a motor, heating element, or engine. PTFE and FEP PTFE and FEP tubing suits high temperatures, chemical exposure, and applications with demanding cleanliness requirements. You may find these materials in aerospace equipment, laboratory instruments, industrial sensors, and some medical cable assemblies. These materials often require higher processing temperatures and cost more than general-purpose polyolefin. Before specifying them, confirm that the cable insulation, labels, seals, and connector housing can withstand the required recovery temperature. Silicone Silicone heat shrink remains flexible across a broad temperature range. It can work well in flexible cables, laboratory equipment, medical devices, and applications where the cable must remain pliable at low or elevated temperatures. Its relatively soft surface may provide less abrasion resistance than harder tubing materials. If the harness rubs against a metal edge or machine frame, you may need braided sleeving, a protective conduit, or a clamp to control movement. Material Typical Applications Points to Check Polyolefin General harnesses, industrial equipment, automotive electronics Temperature, flame resistance, and outdoor exposure PVC Indoor electronics and identification Limited suitability for elevated temperatures PTFE/FEP High-temperature and chemical environments High recovery temperature and material cost Silicone Flexible, medical, and high-temperature cables Abrasion resistance and surface compatibility Use this table for initial screening only. The final selection should follow the tubing manufacturer’s datasheet and the requirements of your cable assembly. What Do 2:1, 3:1, and 4:1 Shrink Ratios Mean? The shrink ratio compares the tubing’s supplied inside diameter with its fully recovered inside diameter. A 2:1 tube can recover to approximately half its original diameter. A 3:1 or 4:1 product covers a wider range of component sizes. A 2:1 tube works well when the diameter remains relatively consistent. Typical uses include wire insulation, small soldered joints, labels, and uniform cable bundles. It also tends to produce a thinner finished profile. A 3:1 tube is useful when the sleeve must pass over a crimp barrel, splice, or connector component before shrinking around a smaller cable. It provides more dimensional flexibility without requiring an unusually large recovered diameter. A 4:1 product suits repair joints, harness branches, and assemblies with a large difference between the maximum and minimum diameters. A higher ratio is not automatically better. It may increase recovered wall thickness, bend radius, and material cost. Shrink Ratio Suitable Locations Main Characteristic 2:1 Individual wires, small joints, labels Thin profile and broad availability 3:1 Crimped splices and connector exits Handles moderate diameter changes 4:1 Irregular joints, repairs, and branch points Covers substantial diameter changes How to Choose the Correct Heat Shrink Size Start by measuring the largest outside diameter that the tubing must pass over. This may be a connector, crimp barrel, soldered joint, terminal, or cable bundle. The supplied inside diameter must provide enough clearance to slide over this component without stretching or damaging the tube. Next, measure the smallest diameter that the tubing must grip after heating. The fully recovered inside diameter must be smaller than this value. Otherwise, the tubing may remain loose or fail to compress the adhesive against the cable surface. Consider a cable joint with a maximum diameter of 9.5 mm and a cable diameter of 4.2 mm behind the joint. The tubing must have a supplied inside diameter larger than 9.5 mm and a recovered inside diameter smaller than 4.2 mm. A standard 2:1 product may not satisfy both conditions, while a suitable 3:1 tube may cover the required range. Do not select tubing from AWG size alone. Two wires with the same conductor gauge may use different insulation materials and wall thicknesses, giving them different outside diameters. Terminals, solder joints, seals, and connectors also change the local dimensions. How to Determine the Cut Length The tubing should cover the entire protected area and extend beyond both sides of the splice or termination. Insufficient overlap can expose a conductor edge or leave a possible path for moisture. Heat shrink tubing may contract along its length as well as around its diameter. If you cut it to the exact required finished length, the recovered tube may become too short. Check the manufacturer’s longitudinal shrinkage specification and add an appropriate cutting allowance. Adhesive-lined tubing also requires enough length for the adhesive to flow and seal the ends. Before mass production, build a sample using the selected tubing, cable, and heating process. Measure the finished length and coverage, then define the production cut length and tolerance from the sample results. How Heat Shrink Tubing Is Applied During Cable Assembly The operator should first confirm the tubing part number, color, cut length, and installation position. If the tubing cannot pass over an assembled terminal or connector, it must be placed on the wire before crimping, soldering, or connector insertion. After completing the electrical connection, the operator moves the tubing into the position shown on the drawing. Applying heat from the center toward both ends helps move trapped air outward and promotes uniform recovery. The process temperature must suit both the tubing and the surrounding components. Insufficient heat can leave the tube partly recovered. Excessive heat can scorch the tubing, deform the cable insulation, damage a label, or soften the connector housing. Low-volume and prototype work usually relies on an adjustable hot-air gun. Higher production volumes may use controlled hot-air equipment, infrared systems, or heat tunnels to reduce operator variation and improve repeatability. How to Inspect Applied Heat Shrink Tubing Start with the position and coverage. The tubing should remain within the specified area and completely cover the conductor, splice, or sharp terminal edge identified on the drawing. The recovered surface should appear uniform and closely fitted. Reject or investigate tubing with cracks, burn marks, severe wrinkles, trapped bubbles, thinning, discoloration, or flared ends. For adhesive-lined tubing, inspect both ends for consistent adhesive flow. Adhesive appearing at only one end may indicate uneven heating, incorrect positioning, contamination, or an unsuitable tube size. Cable assemblies with waterproofing, vibration resistance, or other reliability requirements may also need pull, flex, insulation resistance, temperature cycling, or immersion testing. A good visual appearance does not replace the performance tests required by the project. Common Heat Shrink Problems and Their Causes The Tubing Remains Loose The fully recovered diameter may be too large for the cable, or the tubing may not have received enough heat. Recheck the actual cable diameter, recovery specification, temperature, and heating time. The Tubing Cannot Pass Over the Connector The designer may have selected the size from the cable diameter without measuring the connector or terminal. Do not force an undersized tube over the component. Select a larger supplied diameter or a higher shrink ratio. The Ends Flare Outward Flared ends, sometimes called fish-mouthing, may result from incomplete heating, an oversized tube, an irregular underlying surface, or an unsuitable heating sequence. The Cable Insulation Deforms A high temperature, short nozzle distance, or excessive dwell time can damage the cable jacket or insulation. Compare the tubing recovery temperature with the heat resistance of every nearby material before production. Adhesive Does Not Seal the Ends Possible causes include incorrect sizing, surface contamination, incomplete adhesive melting, or insufficient overlap. If the design has a waterproofing requirement, verify the assembly through samples and appropriate environmental tests. The Finished Tube Is Too Short The cut length may not account for longitudinal shrinkage, or the operator may have heated the tubing unevenly. Use the manufacturer’s data and sample measurements to establish the production cut length. What to Include in a Cable Assembly RFQ A note that simply says “add heat shrink tubing” leaves too many variables open. Two tubes with the same color and nominal diameter may have different wall thicknesses, adhesives, temperature ratings, and flame-retardant properties. Your drawing or bill of materials should identify the material, wall construction, supplied diameter, recovered diameter, shrink ratio, color, and cut length. Add requirements for printing, transparency, flame resistance, or outdoor exposure where applicable. Describe the cable assembly’s operating temperature, installation environment, expected movement, chemical exposure, and moisture conditions. The manufacturer can then check whether the specified tube suits the application and manufacturing process. If you have not selected a part number, provide the cable and connector drawings, maximum pass-over diameter, minimum recovered diameter, and required coverage area. Your cable assembly manufacturer can recommend a specification and confirm it during first-article production. Conclusion Choose heat shrink tubing based on cable diameter, connector size, temperature, moisture, chemicals, and flexibility. Always check the product datasheet and confirm the finished result with a production sample. Zhangjiagang RY Electronic Co., Ltd. can help select and apply heat shrink tubing for custom wire harnesses and cable assemblies. Frequently Asked Questions Can Heat Shrink Tubing Be Used Over Shielded Cable? Yes. However, standard heat shrink only provides insulation and mechanical protection. It does not replace the cable’s shield termination. Does Adhesive-Lined Heat Shrink Bond to Silicone Wire? Some adhesives do not bond well to silicone insulation. Test the selected tubing and wire together before production. Does Heat Shrink Tubing Have a Shelf Life? Adhesive-lined tubing may have a specified shelf life. Follow the manufacturer’s storage and expiration requirements. Can Heat Shrink Tubing Be Sterilized? Some materials can tolerate sterilization, but compatibility depends on the sterilization method. Test the complete medical cable assembly before use.

A properly crimped terminal can still fail if it is not securely locked inside the connector housing. Terminal retention testing verifies whether a terminal remains in position under a specified axial load. It is commonly used in automotive, industrial, and other wire harness applications where connectors may experience vibration, pulling, or repeated mating. What Is Terminal Retention Testing? Terminal retention testing evaluates the ability of a terminal or contact to remain secured inside a connector housing when an axial force is applied. After insertion, the terminal is normally held in the cavity by a locking lance, locking tang, retention finger, or another mechanical retention feature. Some connector systems also use a Terminal Position Assurance device (TPA), wedgelock, or other secondary lock. During the test, a controlled force is applied in the direction specified for the connector. The terminal is then checked for movement, release, or damage to the retention system. The connection being evaluated is: Terminal → Connector Housing It does not measure the strength of the wire-to-terminal crimp. Terminal Retention vs. Other Wire Harness Tests Wire harness tests evaluate different parts of the assembly. Test Main Purpose Typical Problems Detected Continuity test Verifies the electrical circuit Open circuits, incorrect wiring Crimp pull test Evaluates the wire-to-terminal connection Weak or incorrect crimps Terminal retention test Evaluates the terminal-to-housing lock Terminal release or poor seating Visual inspection Checks assembly condition Damage, orientation, visible defects A continuity test confirms that the circuit is electrically connected at the time of testing. It does not confirm that the terminal is mechanically locked in the housing. A crimp pull test evaluates the connection between the wire and terminal. The terminal is restrained while force is applied to the wire to determine whether the crimp has sufficient mechanical strength. Terminal retention testing is performed after the terminal has been inserted into the housing. A crimp can therefore pass its pull-force requirement while the same terminal fails the housing retention requirement. How Is a Terminal Retention Test Performed? The exact procedure depends on the connector design and applicable specification. Most tests involve preparing the sample, applying a controlled axial load, and evaluating the result. Prepare the Test Specimen The sample should represent the production assembly required by the test specification. Confirm the correct terminal, housing, wire size, and related components. For sealed connectors, the wire seal may also affect the final assembly condition. If the connector uses a secondary lock, its position during testing should follow the product specification. The sample should also be checked for obvious damage before testing so that pre-existing defects are not confused with test-related failures. Apply the Axial Load Force is applied along the specified terminal axis. When testing resistance to withdrawal, the load is normally applied in the direction that would pull the terminal out of the housing. Some connector designs may also require a push-back test from the mating side. Load alignment is important. Excessive sideways force can bend the wire, terminal, or housing and distort the result. The fixture should therefore keep the applied force as close as possible to the intended test axis. Control the Test Conditions A retention requirement may specify more than a minimum force. It can also define loading rate, hold time, sample condition, temperature, or other parameters. These conditions should remain consistent when comparing results between operators, production lots, or laboratories. Results obtained with different test methods should not be treated as directly comparable. Evaluate the Result Acceptance criteria depend on the applicable specification. A test may require the terminal to remain in place after a specified proof load, limit allowable movement, or require the locking structure to remain undamaged. Other tests continue until the terminal releases and record the maximum withdrawal force. The drawing or connector specification should define which method applies. What Causes Terminal Retention Failures? Low retention force can result from the terminal, connector housing, assembly process, or previous rework. The Terminal Is Not Fully Inserted A terminal may enter the cavity without reaching the final locking position. This can be difficult to detect in small terminals, high-density connectors, or sealed systems where insertion resistance changes during assembly. If resistance increases too early, the operator may mistake it for full seating. The Locking Lance Is Deformed The locking lance or tang must maintain the correct shape to engage the housing. If it is flattened, bent, or damaged during handling, crimping, or depinning, the terminal may enter the cavity but fail to lock properly. If failures appear across several housings using the same terminal batch, inspecting the locking feature can help identify the source. The Terminal and Housing Do Not Match Similar-looking terminals are not always interchangeable. Differences in terminal width, locking position, contact geometry, or cavity dimensions can prevent proper engagement even when the terminal physically fits inside the housing. Checking terminal and housing part numbers should therefore be part of retention failure analysis. The Wire Seal Interferes With Insertion Sealed connectors add resistance during terminal insertion. If the seal size, wire insulation diameter, or seal position is incorrect, friction may increase before the terminal reaches the locking point. Simply increasing insertion force is not the right solution. The wire, seal, terminal, and housing should be checked as a complete system. The Connector Cavity Is Damaged Repeated depinning, incorrect service tools, or aggressive rework can damage the retention feature inside the cavity. Replacing the terminal may not restore the original retention strength if the housing has already been damaged. Failures that repeatedly occur in the same cavity should prompt an inspection of the housing itself. How to Set the Correct Terminal Retention Force There is no universal retention-force value for every connector. A small signal contact and a high-current terminal can use very different locking structures. Automotive, industrial, sealed, circular, and PCB connector systems can also have different requirements. The correct value should come from documentation for the actual components being used. A practical order of reference is: Customer Drawing → Connector Specification → Terminal Specification → Applicable Test Standard If the customer drawing defines the force, direction, and acceptance criteria, those requirements normally take priority. Otherwise, the connector manufacturer's specification is often the next reference. Using product-specific requirements prevents one convenient force value from being applied to unrelated connector families. Standards for Terminal Retention Testing Standards can provide test methods and general workmanship requirements, but they do not replace the specification for the actual connector. IEC 60512-15-1 IEC 60512-15-1 includes mechanical testing for electrical connectors. Test 15a, Contact retention in insert, evaluates the ability of a contact retention system to withstand axial loading. It provides a relevant standardized method for evaluating contacts retained within an insert or housing. The required force and acceptance criteria still depend on the applicable product specification. IPC/WHMA-A-620 IPC/WHMA-A-620 is widely used for cable and wire harness assembly requirements and acceptance. It provides guidance for workmanship, assembly, inspection, and testing throughout wire harness manufacturing. For terminal retention, it should not be treated as a universal force table. The required mechanical performance still depends on the connector design and customer or product specifications. Connector and Customer Specifications Many projects use requirements defined directly by the connector manufacturer, customer, vehicle manufacturer, or equipment manufacturer. These documents may specify force, loading direction, sample condition, test duration, and allowable terminal movement for a particular connector family. For production testing, these specific requirements usually provide the most relevant acceptance criteria. When to Include Retention Testing in a Quality Plan The required test frequency depends on product risk, customer requirements, and process stability. During new product introduction, retention testing can confirm that the terminal, housing, wire, seal, and insertion process work together correctly. Additional verification may also be appropriate after changes to connector parts, suppliers, wire size, insulation diameter, seals, or insertion equipment. A rise in depinning or connector rework can also justify additional testing because repeated terminal removal may damage either the terminal or housing. Once production is stable, sampling can be based on customer requirements, historical quality data, product risk, and the internal quality plan rather than a fixed sampling rule for every harness. What to Include in a Test Report A useful test report should make the result traceable and reproducible. Record the connector and terminal part numbers, wire specification, sample quantity, test equipment, fixture, loading direction, required force, measured result, and final disposition. Failure mode should also be documented. For example: Terminal released from connector housing and Wire separated from the crimp before terminal release point to different problems. The first directs attention to terminal seating, locking features, part compatibility, or housing condition. The second indicates that the crimp connection failed before the retention system could be fully evaluated. Clear failure descriptions make test data more useful for root-cause analysis. How to Improve Test Repeatability Reliable retention data depends on consistent test conditions. The fixture should secure the connector without deforming it, while the applied force remains aligned with the terminal axis. The wire should not introduce unnecessary bending during loading. Test equipment should also match the expected force range. A load cell with a range far above the measured force may provide poor resolution. Sample preparation should remain consistent as well. Changes in wire length, clamping position, connector orientation, or secondary-lock condition can introduce unnecessary variation. Documenting these conditions in the test procedure helps improve repeatability between operators and production lots. Conclusion Terminal retention testing verifies whether a terminal remains mechanically secured inside its connector housing. Reliable testing requires the correct loading direction, test conditions, acceptance criteria, and connector-specific requirements. By identifying problems such as incomplete insertion, damaged locking features, incorrect part combinations, seal interference, or housing damage, retention testing can help prevent connection failures in finished wire harnesses. FAQ Can terminal retention testing be automated? Yes. Automated systems can monitor insertion force or terminal position, but they must be validated against the connector requirements. Does temperature affect terminal retention force? It can. Housing materials may behave differently at high or low temperatures, so some specifications require conditioned testing. Can the same terminal be tested more than once? Repeated loading may change the terminal or cavity. Fresh samples are usually preferred unless the specification allows reuse. Does higher insertion force mean better retention? No. High insertion force can indicate misalignment, seal interference, or incorrect parts rather than better retention.

A wire harness schematic shows how wires, connectors, terminals, and electrical components connect within a system. This guide explains how to read wire harness schematics, connector pinouts, and production drawings. What Is a Wire Harness Schematic? A wire harness schematic is a technical diagram that shows the electrical connections within a wiring system. It may include wires, connectors, pin assignments, power and ground circuits, splices, switches, relays, sensors, fuses, shielding, and other electrical components. For example: Connector J1 Pin 1 → Wire W101 → Connector J2 Pin 4 This shows the electrical path between two connector positions. A schematic usually focuses on electrical relationships rather than the physical shape of the finished harness. Dimensions, branch locations, sleeving, labels, and connector positions are normally defined in an assembly drawing. Wire Harness Schematic vs. Wiring Diagram vs. Assembly Drawing Several documents may be used for the same harness project. Document Main Purpose Typical Information Schematic Shows electrical logic Circuits, components, power, ground and connections Wiring diagram Shows individual wire connections Wire IDs, colors, pins and destinations Assembly drawing Defines the physical harness Lengths, branches, protection and connector position Pinout table Defines connector cavities Pin number, signal, wire and destination BOM Defines materials Wire, connector, terminal, sleeve and accessory part numbers A simple wire harness may be documented on one drawing. More complex assemblies often use several documents together. For manufacturing, these documents should use the same approved design information. Common Wire Harness Schematic Symbols Wire harness drawings may use different CAD systems and company-specific conventions, so the drawing legend should always take priority. Drawing Element Typical Meaning Straight line Electrical conductor Junction dot Conductors electrically connected Crossing lines without junction Conductors cross but are not connected Twisted lines Twisted pair Shield around conductor Shielded cable Branch line Circuit or harness branch Splice mark Permanent connection between wires Connectors are often represented by rectangles or simplified connector shapes with numbered cavities. Other components may use standard electrical symbols or manufacturer-specific references. If a symbol is unclear, check the drawing legend before assuming its meaning. How to Read Wire Information A wire is normally identified by more than its connection point. You may see an entry such as: W103 — 22 AWG — RD/WH — UL1007 Each part describes a different characteristic. Wire ID. W103 is the wire reference. A unique ID makes it easier to trace the same conductor through the schematic, wire list, test instructions, and assembly drawing. Wire Gauge and Construction Wire size may be specified in AWG or mm². AWG Approx. Metric Area 24 AWG 0.20 mm² 22 AWG 0.33 mm² 20 AWG 0.52 mm² 18 AWG 0.82 mm² 16 AWG 1.31 mm² 14 AWG 2.08 mm² Wire size should be selected according to current, voltage drop, operating temperature, bundle conditions, flexibility, installation environment, and terminal compatibility. Most flexible wiring harnesses use stranded wire because it bends more easily and generally performs better where vibration or repeated movement is present. Solid wire is more common in fixed wiring applications where flexibility is less important. The conductor construction should also match the selected terminal and crimping requirements. Wire Color. Colors are often shown with abbreviations such as BK for black, WH for white, RD for red, GN for green, BL for blue, YE for yellow, OR for orange, and BR for brown. A marking such as RD/WH may indicate red insulation with a white stripe. Because abbreviations can vary between companies, always use the drawing legend as the final reference. How to Read a Connector Pinout A connector pinout shows which circuit is assigned to each connector cavity. For example: Pin Signal Wire Color Destination 1 +12V W101 Red J2-1 2 Ground W102 Black J2-2 3 CAN-H W103 Green J2-3 4 CAN-L W104 White J2-4 This table shows how Connector J1 connects to the rest of the harness. Pin Numbering Locate Pin 1 first and confirm the numbering sequence. Depending on the connector, Pin 1 may be identified by housing geometry, printed numbering, a triangle, a dot, or a keyway. Use the connector manufacturer's technical drawing when the housing itself is not clear. Viewing Direction A connector can look completely different when viewed from opposite sides. A drawing may show the mating face, front view, rear view, or wire insertion side. If the viewing direction is wrong, the connector can appear mirrored and the pin assignment may be reversed. Confirm the viewing direction before production. Unused Cavities Not every connector position needs a wire. For example, a six-position housing may only use four terminals. Unused positions should be clearly identified, especially when sealed connectors require cavity plugs. How to Read a Wire Harness Schematic Step by Step Step 1: Check the Drawing Information Start by checking the drawing number, revision, units, issue date, and general notes. This confirms that you are reviewing the correct document. Step 2: Identify the Connectors Locate connector references such as J1, J2, P1, CN1, or X1 and determine their role in the system. For example: J1 — Power InputJ2 — Motor ConnectionJ3 — Sensor Connection This gives you a basic map of the harness. Step 3: Locate Power and Ground Identify the main power input and return paths. More complex systems may use separate power ground, signal ground, chassis ground, and shield termination points. Do not assume every ground symbol represents the same circuit. Step 4: Trace One Circuit at a Time Follow one complete electrical path before moving to another. For example: Power Supply → Fuse → J1 → W101 → J2 → Motor This makes complex drawings easier to understand and reduces the risk of missing an intermediate connection. Step 5: Check Splices and Branches Some circuits divide into several destinations. A schematic may show: W101 → W102 + W103 + W104 The schematic tells you which wires are electrically connected. The assembly drawing normally shows where the physical splice or branch is located. Step 6: Review Signal-Specific Requirements Some circuits need more than basic connectivity. Twisted pairs, shielding, controlled grounding, differential signal pairs, and separation between power and signal wiring may be required in communication, sensor, RF, or noise-sensitive applications. Step 7: Compare the Documents Compare the schematic, pinout, wire list, assembly drawing, and BOM before releasing the design. If the same connector, wire, or circuit is described differently in two documents, clarify the conflict first. From a Schematic to a Production Drawing A schematic may fully describe the electrical circuit but still lack enough information to manufacture the harness. Production also requires physical specifications. Connector, Terminal, and Wire Specifications The production drawing or BOM should identify the actual connector housing, terminal, seal, secondary lock, retainer, and cavity plug where applicable. Each wire should also define the conductor size, material, construction, insulation type, color, temperature rating, and voltage rating. Shielding should be specified where required. Using exact manufacturer part numbers reduces sourcing mistakes and compatibility problems. Harness Dimensions A production drawing may define overall length, branch length, breakout position, connector-to-connector dimensions, exposed wire length, and strip length. The measurement reference should be clear. For example, housing face to housing face is different from cut-wire length. Protection and Identification Depending on the application, a harness may use PVC tubing, braided sleeving, corrugated conduit, heat-shrink tubing, fabric tape, spiral wrap, cable ties, or overmolding. The correct protection depends on abrasion, heat, moisture, chemicals, vibration, and installation conditions. Labels can also help distinguish similar connectors or branches. Where identification is important, the drawing should define the label text, position, material, and orientation. Electrical Test Requirements Depending on the application, testing may include continuity, open and short circuit checks, pin-to-pin verification, insulation resistance, withstand voltage, or circuit resistance. The test should match the actual product requirements rather than relying only on a general note such as “100% tested.” What Should You Send for a Custom Wire Harness Quote? A complete RFQ helps the supplier evaluate the project faster and reduces repeated engineering questions. Schematic or wiring diagram Assembly drawing Connector and terminal specifications Wire specifications Pinout Harness dimensions Protection requirements Labeling requirements Electrical test requirements Application information Estimated order quantity Prototype quantity Environmental requirements You do not need every document before contacting a manufacturer. If some information is still being developed, clearly identify what has already been confirmed. How a Wire Harness Manufacturer Reviews Your Project Before mass production, the supplier converts your technical documents into repeatable manufacturing instructions. Engineering Review The engineering team checks whether the specified wires, terminals, connectors, seals, and other materials are compatible. This review may uncover issues such as a wire gauge outside the terminal crimp range, incompatible connector components, missing seals, unclear splice requirements, or conflicting dimensions. Finding these issues before production can reduce sampling changes. Process Planning Production may involve wire cutting, stripping, crimping, soldering, splicing, terminal insertion, sleeving, heat shrinking, labeling, and final assembly. The exact process depends on the harness design. Prototype Assembly For a new custom harness, prototypes can verify fit, routing, branch position, flexibility, connector access, and installation space. These details are often difficult to evaluate from the schematic alone. Final Inspection Finished assemblies are checked against the approved production documentation. The inspection method depends on the product and customer requirements, but the objective is to confirm that the finished harness matches the approved design. Using a Wire Harness Schematic for Troubleshooting A schematic remains useful after the wire harness has been installed. Suppose a sensor stops working. First locate the sensor on the schematic and identify its connector pin. Then trace the circuit backward through its connectors, splices, branches, and ground points. Testing the circuit at different locations can help determine whether the problem comes from the wire, terminal, connector, splice, ground connection, or connected component. For equipment with complex wiring, an accurate schematic can significantly reduce troubleshooting time. Wire Harness Drawings and Industry Standards The standards used for a wire harness depend on the industry and customer requirements. IPC/WHMA-A-620 is commonly referenced for cable and wire harness assembly requirements and acceptance, while IEC 60617 covers graphical symbols used in electrotechnical diagrams. Projects may also need to follow connector manufacturer specifications, customer workmanship requirements, or automotive, industrial, medical, aerospace, and other application-specific standards. The approved drawing, BOM, technical specifications, and applicable standards should work together. Frequently Asked Questions Can you manufacture a wire harness if I only have a physical sample? In many cases, yes. A manufacturer can inspect the sample, identify connectors and wires, measure the harness, and prepare production information. Critical electrical and application requirements still need to be confirmed. Can a connector be replaced with an equivalent part? Sometimes. The alternative should be checked for electrical rating, dimensions, terminal compatibility, locking method, mating interface, and environmental requirements before approval. How accurate do wire harness lengths need to be? It depends on the application. A short internal harness may require tighter dimensional control than a long flexible cable routed through a large enclosure. Tolerances should be based on actual fit and installation requirements. Should I order a prototype before mass production? For a new or complex harness, a prototype is useful for checking fit, routing, connector access, branch positions, and electrical connections before larger production quantities. What if my schematic and existing sample are different? Identify the difference and confirm which version represents the current design before the supplier prepares production documentation. A schematic defines the electrical connections, while a production drawing defines how the harness should be built. If you have a schematic, drawing, BOM, or physical sample, Zhangjiagang RY Electronic can review your project and provide a custom wire harness or cable assembly solution.

Solid and stranded wire can both carry power or signals, but they behave differently after installation. Solid wire works best in fixed, protected runs. Stranded wire is usually better for cable assemblies that must bend, absorb vibration, or follow a tight routing path. The correct choice also depends on conductor size, resistance, insulation, termination method, environment, and applicable standards. This guide compares the two constructions and explains what to specify for a reliable cable assembly. What Is Solid Wire? Solid wire contains one continuous metal conductor beneath the insulation. Copper is the most common material. The conductor holds its shape, fits many fixed-contact terminals, and usually costs less to manufacture. It also provides predictable resistance for a given material and conductive area. Its main weakness is limited flexibility. Repeated bending concentrates stress in one piece of metal and can eventually cause a break. Common applications include: Permanent building wiring Fixed control cabinets PCB jumpers Long horizontal Ethernet links Equipment sections that remain stationary What Is Stranded Wire? Stranded wire combines multiple smaller wires into one conductor. As the cable bends, the strands share the mechanical strain. This makes stranded wire easier to route and more resistant to vibration and movement than solid wire. It is widely used in custom wire harnesses, automotive wiring, appliance leads, industrial equipment, battery cables, and portable products. More strands generally improve flexibility, but strand count alone does not determine flex life. The lay, insulation, jacket, cable geometry, bend radius, temperature, speed, and torsion also matter. Continuous-motion equipment needs a purpose-designed high-flex cable. IEC 60228 classifies Class 1 conductors as solid, Class 2 as stranded for fixed installations, and Classes 5 and 6 as flexible copper conductors. These classes do not replace flex-cycle testing for a finished cable. Stranded vs Solid Wire Comparison Design factor Solid wire Stranded wire Construction One continuous conductor Multiple smaller strands Flexibility Low Moderate to very high Repeated bending Poor Better when properly designed Vibration resistance Lower Higher in most harness applications Routing Holds shape but resists tight bends Easier in compact assemblies DC resistance Often lower for comparable size May be slightly higher; check the datasheet Data-cable loss Lower in comparable cables Usually higher Termination Good for compatible push-in and IDC contacts Good for compatible crimp contacts and ferrules Moisture exposure No gaps for moisture to wick between strands May need tinned copper and sealed ends Cost Usually lower Usually higher Typical use Fixed installation Cable assemblies, movement, and vibration Neither construction is universally better. The conductor must meet both the electrical requirement and the mechanical conditions of the application. Flexibility, Vibration, and Fatigue Life Mechanical duty creates the clearest difference. When solid wire bends, tension and compression act on one conductor. A sharp bend, repeated adjustment, or vibration near a connector can create a fatigue point. The insulation may still appear intact after the conductor starts to crack. Stranded wire spreads the strain among smaller elements. Standard stranding is often enough for a harness that only bends during installation. A robotic arm, drag chain, door hinge, or handheld probe needs a defined minimum bend radius and flex-cycle requirement. For moving cables, specify: Minimum bend radius Required flex cycles Bend angle and travel Movement speed Torsion, if present Operating temperature Strain-relief method Resistance, Current Capacity, and Voltage Drop Buyers often ask whether solid wire carries more current. The answer depends on what is being compared. A stranded conductor contains small gaps between strands, so its finished diameter may be larger than that of a solid conductor with a similar conductive area. Nominal AWG or square-millimeter size alone does not define allowable current. Check the following instead: Maximum conductor resistance at 20°C Insulation temperature and voltage ratings Ambient temperature and cable-bundle derating Voltage drop across the complete circuit Connector and terminal current ratings For a short sensor lead, a small resistance difference may not matter. In a low-voltage, high-current power cable assembly, extra resistance can increase voltage drop and heat. Signal Integrity and Cable Length Solid conductors are commonly used in permanent Ethernet links because they provide lower DC resistance and insertion loss. Stranded conductors suit shorter network patch cords that are frequently handled. Signal performance also depends on conductor size, pair geometry, dielectric material, shielding, impedance, connectors, and cable length. For RF, LVDS, USB, and Ethernet assemblies, specify the complete cable construction and required tests. Ordinary stranded wire does not provide the same high-frequency behavior as Litz wire. Litz conductors use individually insulated strands arranged to reduce AC losses at selected frequencies. Termination and Connector Compatibility The terminal must match the conductor material, size, strand range, and insulation diameter. Solid wire works well with contacts designed to clamp or displace a single conductor. Stranded wire is usually paired with a compatible crimp terminal. A controlled crimp forms a stable mechanical and electrical joint without solder. Production checks may include crimp height, conductor position, insulation support, pull force, continuity, and resistance. Ferrules can prepare fine-stranded conductors for compatible terminal blocks. Avoid solder-dipping a stranded end simply to make it rigid for a screw terminal. Solder can deform under clamping force and thermal cycling, which may loosen the connection. Follow the terminal manufacturer's instructions. Moisture and Corrosion If water enters an unsealed stranded conductor, capillary action can carry moisture between strands. Outdoor, automotive, marine, and washdown applications may require: Tinned copper conductors Adhesive-lined heat-shrink Wire seals and cavity plugs Overmolded connector backshells Corrosion-resistant terminals IP-rated connectors Tinned copper improves corrosion resistance but cannot compensate for a poor seal. Specify moisture, chemicals, temperature, ingress protection, and salt-spray requirements separately. Cost and Manufacturing Solid wire usually costs less because its construction is simpler. Fine-stranded wire requires extra drawing, bunching, handling, and sometimes different stripping and crimping equipment. Material price is only part of the cost. Flexible wire may reduce routing time in a complex assembly and prevent vibration-related failures. High-flex cable, however, adds unnecessary cost when the wiring remains fixed. Compare material, assembly time, tooling, testing, service life, and the cost of a field failure. Which Wire Should You Choose? Choose solid wire when: The conductor remains fixed after installation. The route is simple and protected. The terminal is designed for solid wire. Low insertion loss matters over a long data link. Lower cost is important. Choose stranded wire when: The harness bends during installation or service. Equipment produces vibration or shock. The cable passes through a hinge or moving joint. The route includes tight spaces or several bends. Users frequently handle or plug in the cable. A large solid conductor would be difficult to route. Most electrical wiring harnesses use stranded conductors because they must be routed and connected during assembly. Application Guide Application Usual choice Main reason Fixed control panel Solid or standard stranded Match the terminal and local code Automotive harness Stranded Vibration and routing Robotic cable or drag chain High-flex stranded Repeated movement Ethernet permanent link Solid Lower insertion loss Ethernet patch cord Stranded Frequent handling Battery or welding lead Fine stranded High current and flexibility PCB jumper Often solid Short, fixed connection Outdoor sensor harness Tinned stranded with sealed ends Flexibility and corrosion protection Product standards, local codes, connector specifications, and approvals take priority over this general guide. What to Include in Your Cable Assembly Specification A production-ready drawing or request for quotation should state: Conductor material and plating AWG or cross-sectional area in mm² Solid, stranded, fine-stranded, or defined strand construction Current, voltage, resistance, and voltage-drop limits Insulation material and temperature rating Fixed, vibration, or continuous-flex duty Bend radius and flex cycles when applicable Connector and terminal part numbers Environmental and compliance requirements Continuity, resistance, pull-force, and other required tests Frequently Asked Questions Is stranded wire always better for a wire harness? It is the usual choice because harnesses require routing and may experience vibration. A fixed section can still use solid wire when the terminal system and product standard support it. Can solid and stranded wire be used in the same assembly? Yes. Different branches can use different conductor constructions. Each wire and termination must be specified and validated. Do not combine them in one terminal unless the terminal manufacturer approves it. Does stranded wire carry less current than solid wire? Construction alone does not determine the answer. Compare resistance, conductor area, insulation temperature, installation conditions, bundle derating, and terminal ratings. Does a higher strand count guarantee longer flex life? No. Finer strands improve flexibility, but flex life also depends on the lay, jacket, cable geometry, bend radius, torsion, temperature, and strain relief. Should stranded wire ends be soldered before entering a screw terminal? Use the terminal manufacturer's approved preparation. A compatible ferrule or approved bare-wire connection is usually more reliable than a solder-dipped end. Need a Custom Cable Assembly? Zhangjiagang RY Electronic designs and manufactures custom cable assemblies and wire harnesses for electronic, industrial, communication, automotive, and new-energy applications. Send us your drawing, wire requirements, connector part numbers, operating environment, and order quantity. Our team can review the assembly and prepare a quotation for prototype or production requirements. Contact RY Electronic for a quotation. Technical References IEC 60228:2023 – Conductors of insulated cables Fluke Networks – Stranded vs. solid wire cable Phoenix Contact – The problem with tinning wires

A coaxial cable is one of the most common cable types used for RF signals, antennas, GPS, wireless communication, video equipment, and electronic devices. Unlike ordinary electrical wire, coaxial cable has a carefully controlled internal structure. This structure helps carry high-frequency signals while reducing interference and signal loss. If you are selecting a cable for an antenna, communication module, automotive system, or RF device, understanding the basic structure, impedance, cable type, and connector options can help you choose the right solution. In this guide, we explain what a coaxial cable is, how it works, common coaxial cable types, the difference between 50 ohm and 75 ohm cable, and what to consider when sourcing a custom cable assembly. What Is a Coaxial Cable? A coaxial cable, also called a coax cable, is an electrical cable designed to transmit high-frequency signals. The term "coaxial" comes from its construction. The inner conductor and surrounding outer conductor share the same central axis. A typical coaxial cable contains four main parts: Center conductor Dielectric insulation Metallic shielding Outer jacket This construction helps protect the transmitted signal from electromagnetic interference while maintaining controlled electrical characteristics. Because of these properties, coaxial cables are widely used in RF, wireless communication, antenna, GPS, automotive, video, and test equipment. For applications that require connectors on both ends, the cable is normally manufactured as an RF cable assembly. What Is Inside a Coaxial Cable? Although coaxial cables come in many sizes and constructions, most use the same basic layered design. Center Conductor The center conductor carries the electrical signal. Depending on the cable, manufacturers may use solid or stranded conductors made from materials such as copper, tinned copper, or silver-plated copper. Solid conductors can provide stable electrical performance, while stranded conductors generally offer better flexibility. Dielectric Insulation The dielectric layer surrounds the center conductor. Its job is to keep the conductor centered and separated from the shield. The material and dimensions of this layer directly influence the characteristic impedance and signal performance of the cable. Common dielectric materials include polyethylene and fluoropolymer materials. Shielding The conductive shield surrounds the dielectric. It provides the return path for the signal and helps reduce electromagnetic interference. Depending on the required shielding performance, the construction may include braided shielding, foil shielding, or multiple shielding layers. Outer Jacket The jacket protects the cable against mechanical and environmental damage. The correct jacket material depends on the application. Some installations require greater resistance to heat, abrasion, oil, chemicals, moisture, or repeated movement. If you want to learn more about cable insulation and jacket materials, see our guide to wire insulation types. How Does a Coaxial Cable Work? A coaxial cable carries the signal through its center conductor while the surrounding shield acts as the outer conductor. The spacing between these two conductors creates a controlled transmission path. This is why cable geometry is important. If the cable is crushed, bent too sharply, or terminated incorrectly, its internal geometry can change. At higher frequencies, this may affect impedance and increase signal reflections or insertion loss. For this reason, an RF cable should not be treated as only a piece of wire with connectors attached. The cable, connectors, cable length, termination method, and system impedance all contribute to the performance of the complete assembly. Common Types of Coaxial Cable There are many coaxial cable types available. For compact RF and electronic applications, RG-series cables are still widely used. Cable Type Typical Impedance Main Characteristics Common Uses RG174 50Ω Small, lightweight and flexible GPS, Wi-Fi, antennas, internal RF RG178 50Ω Very compact, suitable for small devices RF modules, electronics RG316 50Ω Flexible with good temperature capability Antennas, RF equipment, test devices RG58 50Ω Larger and more robust Radio, antennas, general RF RG59 75Ω Common video cable CCTV and video RG6 75Ω Lower loss over longer distances CATV, satellite and broadband The best coaxial cable is not always the largest cable. For example, RG174 may be suitable when installation space is limited, while a larger cable may provide lower attenuation for a longer RF connection. You should therefore consider both mechanical and electrical requirements. Our RF cable assemblies include different cable and connector combinations for antenna, wireless, automotive, and electronic applications. 50 Ohm vs 75 Ohm Coaxial Cable One of the most important specifications of coaxial cable is characteristic impedance. The most common values are 50 ohms and 75 ohms. Industry references describe 50Ω as widely used for RF transmission applications, while 75Ω is frequently used for video and broadcast signal transmission. 50 Ohm Coaxial Cable 50-ohm coaxial cable is commonly used for: RF antennas Wi-Fi GPS Cellular communication Radio systems Wireless modules RF test equipment Many SMA, UFL/IPEX, MMCX, MCX, N-Type, and automotive RF applications use 50-ohm transmission paths. 75 Ohm Coaxial Cable 75-ohm cable is commonly used for: CCTV Video equipment Television CATV Satellite systems Broadcast applications The most important rule is to match the impedance of the cable to the rest of your system. A 50-ohm device should normally use a 50-ohm cable and compatible connectors. Impedance mismatch can cause signal reflection and reduce RF performance. Where Are Coaxial Cables Used? Coaxial cables appear in a wide range of products. Antennas and Wireless Equipment One of the most common applications is connecting an RF module to an antenna. This can include: Wi-Fi equipment GPS modules Cellular devices IoT systems Radio equipment A typical design might use a small UFL connector on the PCB and an SMA connector on the enclosure. A custom cable assembly connects the two interfaces. Automotive Electronics Modern vehicles contain many RF communication systems. Coaxial cables can be used for GPS, radio, cellular communication, infotainment, telematics, and vehicle antennas. FAKRA connectors are commonly used in these applications because their coded housings help simplify connector identification. For example, custom assemblies can combine FAKRA and SMA connectors with RG174 coaxial cable. Electronic and Industrial Equipment Coaxial cable assemblies are also used in: RF instruments Measurement equipment Industrial electronics Communication equipment Antenna systems Test fixtures The required cable type depends on frequency, length, shielding, connector interface, and environmental conditions. Common Coaxial Connector Types Choosing the correct connector is just as important as selecting the cable. Common RF coaxial connectors include: SMAFrequently used for antennas, GPS, Wi-Fi, communication equipment, and RF instruments. UFL / IPEXVery small connectors commonly used on PCBs and wireless modules. FAKRACommon in automotive RF, GPS, antenna, and infotainment systems. BNCOften used for test equipment, CCTV, RF instruments, and communication systems. MCX and MMCXCompact connectors suitable for GPS, wireless devices, and embedded electronics. N-TypeA larger and more robust RF connector commonly used for external antennas and communication equipment. Our RF cable assembly range includes various connector and cable combinations for custom projects. How Do You Choose the Right Coaxial Cable? There is no single coaxial cable that is suitable for every application. Before selecting one, consider these key factors. Operating Frequency Higher frequencies make cable loss and impedance control more important. Always identify your operating frequency before selecting the cable. Cable Length Signal attenuation increases as cable length increases. A miniature coax may work well for a short connection inside a device but may not be the best solution for a long antenna cable. Impedance Confirm whether your system requires 50Ω or 75Ω. The cable, connectors, antenna, and equipment should use compatible impedance wherever possible. Connector Type The connector needs to match both the system interface and the physical cable construction. For example, SMA connectors designed for small RG174 cable use different termination dimensions from connectors designed for larger RF cables. Flexibility and Installation Space Compact electronics often require flexible cables that can pass around PCBs, housings, and other components. However, very tight bends can deform the cable and affect its performance. Working Environment Consider temperature, vibration, moisture, chemicals, outdoor exposure, and repeated movement. These conditions may affect the cable jacket, connector plating, strain relief, and sealing requirements. Why Does Cable Assembly Quality Matter? A high-quality cable can still perform poorly if the connector is terminated incorrectly. During coaxial cable assembly production, important factors include: Cable stripping dimensions Center contact termination Shield preparation Ferrule crimping Connector position Strain relief Poor termination can create impedance discontinuities or reduce mechanical reliability. This is why custom RF assemblies should be manufactured and tested as complete assemblies rather than evaluated only by cable type. How Are RF Cable Assemblies Tested? Testing requirements depend on the application. Basic assemblies may require continuity, short-circuit, dimensional, and visual inspection. Higher-frequency RF applications may also require tests such as: Insertion loss VSWR Return loss IEC 60966-1 establishes general requirements and test methods covering electrical, mechanical, and environmental properties of RF coaxial cable assemblies. When requesting a custom cable, it is better to specify the actual required test rather than simply asking whether the cable is "tested." What Information Should You Provide for a Custom Coaxial Cable? Providing complete specifications can make quotation and production much faster. You should normally provide: Cable type 50Ω or 75Ω impedance Connector A Connector B Cable length Operating frequency Quantity Working environment Special testing requirements For example: RG316, 50Ω, SMA female bulkhead to UFL, 300 mm, GPS application, 1,000 pcs. This gives the manufacturer much more useful information than simply asking for an "SMA antenna cable." Frequently Asked Questions What is a coaxial cable used for? Coaxial cable is commonly used to transmit RF, antenna, GPS, wireless, video, and communication signals while reducing external electromagnetic interference. What is the difference between coaxial cable and normal wire? A normal wire mainly carries electrical current or low-frequency signals. A coaxial cable uses a center conductor and surrounding shield with controlled geometry to maintain characteristic impedance and support high-frequency signal transmission. Is coaxial cable 50 ohm or 75 ohm? Both are common. 50Ω cable is widely used for RF and wireless applications, while 75Ω cable is commonly used for video, broadcast, and CATV applications. Which coaxial cable is best for an antenna? It depends on frequency, cable length, signal loss, installation space, connector type, and operating environment. Small cables such as RG174 can work well for short antenna connections, while longer connections may require a lower-loss cable. Can coaxial cable assemblies be customized? Yes. Cable type, connector combination, length, orientation, heat shrink, sealing, and other features can be customized according to your application and drawing. Custom Coaxial Cable Assemblies for Your Project Choosing the right coaxial cable means considering more than the cable number. Frequency, impedance, cable length, signal loss, connector compatibility, installation space, and operating environment should all be evaluated together. We manufacture custom RF cable assemblies, micro coaxial cables, and other custom cable assemblies for electronic, communication, automotive, antenna, and industrial applications. If you need an SMA to UFL cable, FAKRA cable assembly, BNC cable, MMCX assembly, RG174 cable, RG316 cable, or another custom RF configuration, send us your drawing, cable specifications, connector requirements, and order quantity. Contact us for a custom coaxial cable assembly quotation.

Wire insulation does much more than keep a conductor covered. The right insulation helps a wire harness withstand heat, moisture, chemicals, vibration, abrasion and repeated movement. For a custom wire harness, choosing the insulation material should depend on the actual working environment rather than price alone. What Is Wire Insulation? Wire insulation is the non-conductive material surrounding an electrical conductor. Its primary job is to prevent unwanted electrical contact between conductors and surrounding components. At the same time, it protects the conductor against environmental and mechanical damage. In a wire harness, insulation can affect: Operating temperature Flexibility Abrasion resistance Chemical resistance Moisture resistance Cable diameter Weight Flame performance Service life The properties vary significantly between different polymer formulations, so there is no single insulation material that is suitable for every application. PVC, polyethylene, cross-linked polymers, fluoropolymers, TPE and silicone are all used in modern wire and cable constructions. Wire Insulation vs. Cable Jacket These two terms are sometimes confused. Insulation directly surrounds an individual conductor and provides electrical isolation. A jacket normally surrounds several insulated conductors or the complete cable and provides additional mechanical and environmental protection. For example, a multi-conductor cable may use PVC insulation around each conductor and then add an outer PVC or polyurethane jacket around the entire cable. When selecting a custom cable assembly, both layers may need to be considered. 1. PVC Insulation Polyvinyl chloride, or PVC, is one of the most widely used wire insulation materials. It offers a practical balance between cost, flexibility, electrical performance and general environmental resistance. Different PVC compounds can also be formulated for flame resistance, oil resistance and different temperature requirements. PVC is commonly found in: Consumer electronics Home appliances Control equipment Internal equipment wiring General-purpose wire harnesses Automotive circuits with moderate environmental requirements Advantages of PVC PVC is economical and easy to process. It is available in many colors and works well for applications where extreme temperature or chemical exposure is not a major concern. Limitations of PVC Its temperature and chemical performance depend heavily on the formulation. Standard PVC may not be the best choice near very hot components or in environments with aggressive chemicals. For these applications, XLPE, silicone or fluoropolymer insulation may provide better long-term performance. 2. XLPE Insulation XLPE, or cross-linked polyethylene, is polyethylene that has been modified through cross-linking. Cross-linking improves the material's thermal stability and allows it to maintain its physical properties at higher temperatures than conventional polyethylene. Some XLPE constructions are designed for operating temperatures around 125°C, although the exact rating must always be confirmed from the wire specification. XLPE is commonly used in: Automotive wiring Engine compartments Industrial equipment Battery systems Power distribution Heavy-duty vehicles Why XLPE Is Popular in Automotive Harnesses Automotive cables must deal with heat, vibration, fluids and tight installation spaces. Cross-linked insulation provides a useful combination of heat resistance, durability and relatively thin insulation walls. Automotive wire names such as GXL, TXL and SXL are commonly associated with cross-linked insulation constructions, although the exact specification should always be confirmed according to the applicable automotive standard. Modern automotive cable requirements are covered by standards such as the ISO 19642 series, which includes test methods for electrical cables used in road vehicles. ISO 19642-2:2023 replaced earlier test-method standards including parts of ISO 6722. 3. Silicone Wire Insulation Silicone is a good choice when a harness needs both high-temperature resistance and excellent flexibility. Unlike some harder plastics, silicone remains soft and flexible across a wide temperature range. Commercial silicone hook-up wires are available with ratings reaching 150°C or 200°C depending on their construction. Typical applications include: Heating equipment Battery systems LED lighting Medical equipment Sensors High-temperature appliances Industrial machinery Advantages of Silicone Its flexibility makes silicone especially useful where wires must bend around components or remain flexible in cold environments. Limitations of Silicone Silicone insulation can be softer than some thermoplastic or fluoropolymer materials. If the wire will repeatedly rub against sharp metal surfaces, additional sleeving or mechanical protection may be necessary. 4. Fluoropolymer Insulation: PTFE, FEP and ETFE Fluoropolymer insulation is used when normal wire materials cannot provide enough resistance to temperature, chemicals or harsh environments. The most common options include: PTFE – PolytetrafluoroethyleneFEP – Fluorinated ethylene propyleneETFE – Ethylene tetrafluoroethylene These materials are not identical. PTFE is well known for very high-temperature capability. FEP combines high-temperature performance with easier processing, while ETFE is frequently selected where mechanical strength, chemical resistance and thin-wall construction are important. TE Connectivity, for example, uses modified cross-linked ETFE in high-performance wire constructions and highlights its thermal, mechanical and environmental properties. Typical Applications Fluoropolymer-insulated wires can be found in: Aerospace equipment High-temperature sensors Medical devices Industrial systems Automotive electronics Test equipment Compact electronic assemblies Advantages The main advantages are high temperature resistance, good chemical resistance and the ability to provide strong performance with relatively thin insulation in suitable constructions. Limitations Cost is usually higher than PVC or conventional polyethylene-based insulation. Using fluoropolymer wire in a simple room-temperature application may therefore increase harness cost without providing a meaningful benefit. 5. TPE and TPR Insulation TPE, or thermoplastic elastomer, combines some rubber-like characteristics with thermoplastic processing. It is useful when the cable must remain flexible and tolerate repeated movement. Depending on the formulation, TPE materials can provide resistance to oils, fuels, solvents and water while maintaining flexibility at low temperatures. Common applications include: Moving machinery Robotics Portable equipment Industrial control systems Appliances Flexible cable assemblies TPE is particularly useful when flexibility is a more important design factor than simply achieving the lowest material cost. 6. PE and PP Insulation Polyethylene (PE) and polypropylene (PP) are also widely used in electrical cable constructions. PE offers useful electrical properties and resistance to moisture and many chemicals. Its dielectric characteristics make it particularly useful in signal transmission and communication cable applications. PE and PP can be found in: Communication cables Signal cables Coaxial cables RF applications Electronic equipment Multi-conductor cables For a wire harness carrying sensitive signals rather than only DC power, the electrical properties of the insulation can become an important part of the cable design. Quick Comparison of Common Wire Insulation Materials Material Heat Resistance Flexibility Chemical Resistance Relative Cost Typical Applications PVC Moderate Good Moderate Low Electronics, appliances, general harnesses XLPE High Good Good Low–Medium Automotive, industrial, battery systems Silicone High Excellent Good Medium Heating, batteries, medical equipment TPE Moderate–High Excellent Good Medium Robotics, moving equipment, flexible cables ETFE High Good Excellent High Automotive, aerospace, harsh environments FEP Very High Good Excellent High Sensors, medical, high-temperature equipment PTFE Very High Moderate Excellent High Aerospace, industrial, extreme-temperature applications PE / PP Moderate Good Good Low–Medium Signal, data, RF and communication cables Important: These are general comparisons rather than universal ratings. Temperature, voltage, wall thickness, flame performance and chemical resistance vary by individual wire construction and specification. How to Choose the Right Wire Insulation Choosing wire insulation should start with the application rather than the material name. Before specifying a wire for a harness, consider the following factors. Operating Temperature Determine both the normal operating temperature and possible short-term temperature peaks. A control cable installed inside room-temperature equipment has very different requirements from a cable routed near a motor, heater or automotive engine. Do not automatically choose the highest temperature rating. Higher-performance materials normally increase cost. Voltage Requirements Insulation must be suitable for the system voltage and the applicable safety requirements. However, insulation material alone does not determine a wire's voltage rating. Wall thickness, construction and certification also matter. Always evaluate the complete wire specification. Flexibility and Movement A stationary wire inside an enclosure and a cable moving continuously inside a robotic arm should not necessarily use the same construction. For dynamic applications, consider conductor stranding, insulation flexibility, bend radius and expected movement cycles together. Oil and Chemical Exposure Automotive, industrial and manufacturing equipment may expose wiring to oil, fuel, coolant, cleaning chemicals or solvents. In these environments, material compatibility should be confirmed before production. High-performance automotive and industrial wires are often designed specifically around fluid resistance requirements. Abrasion and Mechanical Protection A cable routed through a protected plastic enclosure requires less abrasion resistance than a harness mounted near moving metal parts. If abrasion cannot be avoided, the solution may involve both a more durable wire material and additional protection such as: Braided sleeving Corrugated tubing Heat-shrink tubing Protective conduit Heat-shrink products are commonly used to add electrical insulation, mechanical protection, environmental sealing and strain relief around harness components. Installation Space Thin-wall wire can reduce harness diameter and make routing easier in compact products. This can be important in automotive electronics, medical equipment, sensors and densely packed electronic devices. The smallest cable, however, is not automatically the best cable. Mechanical strength and production requirements still need to be considered. Is More Expensive Insulation Always Better? No. A common mistake in custom wire harness design is selecting the most technically advanced material instead of the material that actually matches the application. For example, PTFE or ETFE may offer excellent performance, but a standard indoor electronics harness may work perfectly with PVC at a much lower cost. On the other hand, reducing cost by using basic PVC in a high-temperature or chemically aggressive environment can result in premature insulation failure. The goal is not to select the cheapest or most expensive wire. The goal is to select the right wire for the actual operating conditions. Choosing Wire Insulation for a Custom Wire Harness When requesting a custom wire harness, providing only the connector model and cable length is often not enough. For more accurate material selection, provide your supplier with: Working voltage Current Wire gauge Normal operating temperature Maximum temperature Indoor or outdoor use Chemical exposure Waterproof requirements Flexing or movement requirements Required certifications Connector and terminal specifications Drawing or wiring diagram With this information, the wire material can be selected together with the connector, terminal, conductor size, protective sleeving and harness structure. RY manufactures custom wire harnesses and cable assemblies according to customer drawings, samples and application requirements, including products using different conductor and insulation constructions. Conclusion Wire insulation directly affects how reliably a cable assembly performs in its real operating environment. PVC is practical for many general applications. XLPE works well where higher heat and environmental resistance are required. Silicone provides excellent flexibility at elevated temperatures, while fluoropolymers such as ETFE, FEP and PTFE are better suited to demanding chemical and high-temperature environments. Instead of choosing an insulation material by name alone, consider temperature, voltage, movement, chemicals, abrasion, installation space and applicable standards together. If you are developing a custom wire harness, send us your drawing, connector information, wire specifications and application requirements. We can help you evaluate a suitable cable construction for your project. Frequently Asked Questions Does wire color affect insulation performance? Usually no. Color is primarily used for circuit identification, assembly control and maintenance. However, special pigments or application requirements can affect the available material choices, so custom colors should still be confirmed with the wire supplier. Can different insulation materials be used in the same wire harness? Yes. One harness may contain several types of wire. For example, high-temperature wires may be used near a heater while standard wires are used in cooler areas of the same assembly. Why does insulation thickness matter when choosing a connector? The outside diameter of the insulated wire affects terminal crimping, connector seals, wire routing and cavity compatibility. Two wires with the same AWG conductor can have different overall diameters because their insulation constructions are different. Should outdoor wire harnesses always use waterproof wire? Not necessarily. Waterproof performance depends on the complete harness design, including connectors, seals, splices, overmolding and cable entry points. Insulation material is only one part of the waterproofing system. Can an existing wire harness be changed to a different insulation material? Yes, but the replacement should be reviewed carefully. A different material may change wire diameter, flexibility, stripping parameters, crimp settings and connector seal compatibility. Sample validation is recommended before mass production.

Choosing the right connector is essential for building a reliable cable assembly. Quick Comparison of Common Connector Types Connector Type Typical Applications Main Benefits Key Considerations Wire-to-board connectors Control boards, sensors and electronic devices Compact and easy to integrate with PCBs Pitch, current, wire size and header direction Wire-to-wire connectors Internal wiring and modular equipment Easy connection between cable sections Locking method and retention force RF coaxial connectors Antennas, GPS and wireless equipment Suitable for high-frequency signal transmission Impedance, frequency and cable compatibility Circular connectors Industrial, outdoor and transportation equipment Strong protection and secure coupling Pin count, shell size and sealing M8 and M12 connectors Sensors, actuators and automation systems Standardized and resistant to vibration Coding, pin assignment and signal type Sealed connectors Vehicles, machinery and outdoor devices Resistant to moisture, dust and vibration Seals, terminals and assembly quality Data connectors Networking, charging and electronic devices Widely supported and easy to use Data speed, shielding and retention Terminal blocks Control cabinets and field wiring Convenient installation and maintenance Space, vibration and wire termination Overmolded connectors Outdoor and frequently handled cables Integrated sealing and strain relief Tooling, materials and production volume 1. Wire-to-Board Connectors Wire-to-board connectors connect individual wires or a complete cable harness directly to a printed circuit board. They are commonly used in sensors, lighting equipment, battery products, control modules and communication devices. A typical connection includes a crimp terminal, plastic housing and PCB-mounted header. When selecting this connector type, check the contact pitch, wire gauge, current capacity, number of circuits and header direction. The locking structure should match the operating environment. A simple friction lock may work inside stationary equipment, while a stronger latch may be required for products exposed to movement or vibration. 2. Wire-to-Wire Connectors Wire-to-wire connectors join two cable sections without using a printed circuit board. They are commonly found in appliances, lighting systems, battery cables, machinery and modular equipment. These connectors make installation and maintenance easier because one section of the harness can be disconnected or replaced independently. Available locking methods include friction locks, snap locks, positive latches and threaded couplings. For moving or vibrating equipment, choose a secure locking design and sufficient strain relief so that pulling forces are not transferred directly to the terminals. 3. RF Coaxial Connectors RF coaxial connectors transmit high-frequency signals between antennas, receivers, communication modules and wireless devices. Typical applications include GPS, Wi-Fi, cellular communication, vehicle electronics, IoT devices and industrial monitoring. The connector should match the coaxial cable’s impedance, frequency range, diameter and shielding construction. Installation space and mating frequency should also be considered, especially when choosing between compact internal connectors and stronger external interfaces. Incorrect cable stripping, crimping or shielding termination can increase signal loss. For demanding applications, the finished assembly should be tested for continuity, insertion loss and signal stability. 4. Circular Connectors Circular connectors use a round housing with threaded, bayonet, snap-lock or push-pull coupling. They are widely used in industrial machinery, outdoor equipment, transportation systems, medical devices and communication products. One circular connector may carry power, signals, data or several circuit types together. Its shell provides mechanical protection, secure mating and clear polarization, while sealed versions can resist dust and moisture. Before selection, confirm the contact arrangement, shell diameter, panel cutout, cable entry and coupling method. The installation should also leave enough space for technicians to lock and release the connector. 5. M8 and M12 Industrial Connectors M8 and M12 connectors are commonly used with sensors, actuators, motors, industrial cameras and automation equipment. Their threaded coupling provides a stable connection in environments with vibration and repeated movement. These connectors are available for power, signal and data transmission. However, connectors with the same thread size may still have different coding, pin arrangements or electrical functions. When specifying an assembly, confirm the coding, contact number, male or female configuration, pin assignment, shielding, cable material and environmental protection. 6. Sealed Connectors Sealed connectors are designed for cable assemblies exposed to water, dust, temperature changes and vibration. They are widely used in vehicles, battery systems, agricultural machinery, marine devices and outdoor equipment. A complete sealed system may include the housing, crimp contacts, wire seals, interface seals, cavity plugs and secondary locks. All components must match the selected wire size and connector design. Incorrect seals, open cavities or partially inserted terminals can allow moisture to enter. For demanding applications, sealing should be verified on the completed cable assembly. 7. Data Connectors Data connectors are used in networking, charging, computing and electronic communication systems. They are commonly found in industrial computers, cameras, control panels, test equipment and communication devices. The external connector shape alone does not determine data speed, charging power or shielding performance. The internal conductors, cable construction and termination method must also support the required specification. For industrial or outdoor equipment, consider locking, sealing and strain relief. A custom or keyed design may also help prevent users from connecting an unsuitable third-party cable. 8. Terminal Blocks Terminal blocks connect wires through screws, spring clamps or push-in mechanisms. They are commonly used in control cabinets, power supplies, building automation and industrial electrical systems. They provide easy field wiring, clear terminal identification and convenient maintenance. Pluggable versions also allow a control module to be removed without disconnecting each wire separately. Terminal blocks require more space than compact connector housings. In applications with vibration or temperature changes, correct tightening torque and cable strain relief are especially important. 9. Overmolded Connectors Overmolded connectors use molded material around the cable-to-connector transition to provide sealing, strain relief and mechanical protection. They are often used in outdoor sensors, antenna cables, vehicle wiring, medical equipment and industrial communication products. A custom overmold can also include grip surfaces, orientation marks, logos and mounting features. However, overmolding usually requires tooling and may not be economical for very small quantities. The connector housing, cable jacket and molding material must be compatible. Crimping, soldering and shielding should be completed correctly before the molding process begins. How to Choose the Right Connector The correct connector should meet the electrical, mechanical and environmental requirements without adding unnecessary cost or complexity. Electrical Requirements Confirm the operating voltage and current for every circuit. Current capacity can be affected by wire gauge, contact material, the number of loaded contacts, operating temperature and connector ventilation. For power applications, voltage drop and temperature rise should be evaluated on the complete cable assembly. Signal Requirements Determine whether the cable carries power, low-level signals, high-speed data or RF signals. High-speed and RF connections may require controlled impedance, shielding continuity and carefully designed transitions between the cable and connector. A connector suitable for basic control signals may not provide stable performance for high-frequency communication. Wire and Cable Compatibility The connector contact must match both the conductor size and insulation diameter. Important cable information includes: Wire gauge Conductor material Insulation diameter Cable diameter Number of conductors Shielding construction Jacket material Minimum bend radius An incorrect terminal may appear acceptable after crimping but still provide weak pull strength or unstable electrical resistance. Operating Environment Consider the actual conditions in which the cable assembly will operate. Possible conditions include water, condensation, dust, oil, chemicals, sunlight, salt exposure, temperature changes, vibration and repeated movement. Environmental protection depends on the complete assembly, including the connector, cable entry, seals, backshell and panel mounting. Mechanical Design The equipment should provide enough room for connector mating, cable bending, locking mechanisms, strain relief and technician access. A connector may fit inside a digital design but still be difficult to install on the production line. The cable routing should also avoid excessive tension, sharp bends and contact with moving or heated components. Production and Supply Connector selection also affects manufacturing efficiency and supply stability. Before approval, check component availability, lead time, minimum order quantity, tooling requirements, terminal packaging and replacement options. A technically suitable connector may still create production delays if its contacts, seals or assembly tools are difficult to obtain. Common Connector Selection Mistakes Selecting by Appearance Two connectors may look similar while using different contact dimensions, locking structures or materials. Exact specifications should always be confirmed before production. Mixing Incompatible Components Connector housings, contacts, seals and locking parts should be selected as one compatible system. Similar-looking components are not automatically interchangeable. Ignoring Crimp Quality Reliable connector performance depends heavily on terminal crimping. Incorrect tooling or settings may cause high resistance, weak pull strength or damaged conductors. Missing Strain Relief Repeated bending near the connector can break conductors or loosen shielding. Strain relief should be included in the connector housing, backshell, overmold or cable routing design. Skipping Prototype Validation A connector may pass visual inspection but fail during electrical loading, vibration, flexing or environmental testing. The complete cable assembly should be validated before mass production begins. Information Needed for a Custom Cable Assembly Quote Complete technical information helps a cable assembly manufacturer evaluate the project and prepare an accurate quotation. Useful information includes: Connector drawing or specification Mating interface Wiring diagram or pinout Cable type and length Wire gauge and color Operating voltage and current Signal or frequency requirements Shielding requirements Application environment Labeling requirements Testing requirements Prototype quantity Estimated annual demand When the connector has not yet been selected, application requirements can be provided instead. The manufacturer can then compare suitable connector types according to electrical performance, cable compatibility, sealing and production needs. Custom Cable Assembly Solutions from RY RY provides custom cable assembly and connector solutions for wireless communication, GPS, Wi-Fi, cellular networks, IoT devices, industrial equipment and automotive electronics. We can manufacture cable assemblies based on your drawings, connector specifications, samples or application requirements. Our team can support connector selection, cable matching, wiring design, shielding, labeling, overmolding and electrical testing. To receive an accurate quotation, please provide your connector requirements, wiring diagram, cable type, cable length, operating environment, prototype quantity and estimated annual demand. Learn more about our custom cable and antenna solutions at RY. Frequently Asked Questions Can a custom cable assembly be produced from a physical sample? Yes. A physical sample can be used to identify the connector interface, cable construction, dimensions and wiring arrangement. However, providing the electrical requirements and intended application can help prevent an unsuitable existing design from being repeated. Can one cable assembly use several different connector types? Yes. A cable assembly can include different connectors, cable branches, terminals and protective components. The wiring diagram should clearly show each branch length, connector orientation, pin assignment and labeling requirement. How can cable assembly costs be reduced without affecting reliability? Cost can often be reduced by simplifying unnecessary cable branches, standardizing wire colors, selecting readily available components and avoiding excessive customization. Cost reduction should not compromise conductor size, contact quality, sealing or required testing. What should be checked before approving a production sample? The approved sample should be checked for overall length, branch dimensions, connector orientation, pin assignment, labeling, crimp quality, electrical continuity and appearance. It should also be tested inside the actual equipment whenever possible. Can RY support both prototypes and volume production? RY can evaluate projects based on prototype requirements and estimated production demand. Providing both quantities during the quotation stage helps determine suitable components, tooling and manufacturing methods.

How to Choose the Right Cable Tie for Your Application? Cable ties are small components, but they play an important role in keeping wiring systems safe and organized. In many industries, thousands of cables need to be fixed properly. A cable tie failure may look like a small problem, but it can lead to loose wiring, equipment downtime, and extra maintenance costs. This is why professional buyers do not choose cable ties only by price. The right cable tie depends on several factors: Where will it be used? What environment will it face? How much load does it need to hold? How long does it need to last? For indoor wiring, a standard nylon cable tie may be enough. For outdoor equipment, automotive systems, solar installations, or industrial machines, a more durable solution is usually required. This guide explains how to choose the right cable tie based on real application needs. Why Choosing the Wrong Cable Tie Can Create Problems Many buyers focus on the purchase price when selecting cable ties. However, the cheapest option is not always the most cost-effective choice. A low-quality cable tie may work well during installation, but problems can appear later. For example, outdoor cable ties are exposed to sunlight, rain, and temperature changes. Without proper UV resistance, the material may become brittle and break. In industrial equipment, vibration and movement can gradually weaken the locking structure. When cable management fails, companies may need to spend extra time on inspection, replacement, and repairs. A better approach is to choose a cable tie based on the working environment first. Step 1: Understand Where the Cable Tie Will Be Used The application environment determines the basic requirements. Indoor Applications Indoor environments are usually more stable. Electrical cabinets, office wiring, and general equipment assembly normally do not face direct sunlight or extreme weather. Standard nylon cable ties are commonly used because they provide: Good strength Good flexibility Reliable locking performance Affordable cost For general cable organization, PA66 nylon cable ties are often the most practical choice. Outdoor Applications Outdoor applications are more demanding. Cable ties installed outside must handle: Sunlight exposure Rain and humidity Temperature changes Long-term aging For these environments, standard cable ties may not provide enough protection. UV-resistant cable ties are often selected because special additives help reduce aging caused by sunlight. They are widely used in: Solar power systems Outdoor lighting Communication equipment Wind energy projects Step 2: Select the Right Cable Tie Material Different materials provide different levels of performance. Choosing the correct material helps ensure long-term reliability. Nylon 6/6 (PA66) Cable Tie PA66 is the most common cable tie material. It is popular because it offers a good balance between strength, flexibility, and cost. For many industrial applications, PA66 cable ties provide reliable performance. Typical uses include: Electrical cabinets Machine wiring Cable harness assembly General industrial equipment For normal working environments, PA66 is usually the first choice. UV Resistant Nylon Cable Tie Outdoor environments require better protection. Long-term sunlight exposure can gradually weaken ordinary nylon materials. UV-resistant cable ties are designed to improve outdoor durability. They are commonly used in industries where cable systems must remain reliable for years. Examples include solar farms, outdoor equipment, and renewable energy systems. Stainless Steel Cable Tie Some applications require higher durability than plastic materials can provide. Stainless steel cable ties are designed for harsh environments. They are suitable for: High-temperature areas Marine environments Chemical exposure Heavy industrial equipment Although the initial cost is higher, stainless steel cable ties can provide longer service life in extreme conditions. Step 3: Choose the Correct Cable Tie Size Selecting the right size is another important step. A cable tie should hold the cable bundle securely without excessive stress. Two main factors need attention: Cable Bundle Diameter The cable tie length should match the size of the cable bundle. If the cable tie is too short, it may not lock correctly. If it is too long, it may create unnecessary waste. The goal is to achieve a secure fit with enough locking strength. Tensile Strength Tensile strength shows how much pulling force a cable tie can handle. Small electronic cables may only require lightweight cable ties. However, industrial wiring systems often need stronger solutions. Heavy-duty cable ties are commonly used for: Large cable bundles Machine wiring Automotive harnesses Renewable energy equipment The heavier the cable load and the harsher the environment, the higher the required strength. Cable Tie Selection for Different Industries The best cable tie depends on the industry and application. Automotive Wire Harness Automotive wiring systems experience constant vibration, temperature changes, and movement. Cable ties used in vehicles need stable locking performance and good durability. They are commonly used for: Engine wiring Battery cables Sensor systems Internal harness organization A reliable cable tie helps protect the wiring system throughout the vehicle lifecycle. Solar Energy Systems Solar installations operate outdoors for many years. Cable management components must withstand sunlight and weather exposure. For solar projects, UV-resistant cable ties are often preferred because they help maintain cable positioning and reduce maintenance problems. Good cable management also improves installation quality and system reliability. Wind Energy Equipment Wind turbines operate in challenging environments. Inside the nacelle and tower, cables are exposed to vibration, temperature changes, and long operating periods. Cable ties used in wind energy applications should provide: Stable fixing performance Good environmental resistance Long service life Reliable cable organization helps protect electrical connections and reduces maintenance requirements. Industrial Automation Modern factories contain many sensors, motors, and control systems. Cable management is important for: Easy maintenance Safe operation Efficient installation Industrial cable ties help keep wiring systems organized and reduce installation time. Common Mistakes When Buying Cable Ties Choosing Only by Price Price is important, but it should not be the only factor. A cheaper cable tie may increase costs later if it fails during operation. For industrial buyers, reliability and service life are often more valuable than a small difference in unit price. Using Standard Cable Ties Outdoors Not every cable tie is designed for outdoor use. Before purchasing, check whether the material can handle UV exposure and weather conditions. Ignoring Temperature Requirements Temperature affects plastic performance. Cable ties used near engines, machines, or heating equipment should be selected according to the working temperature range. How to Choose a Reliable Cable Tie Supplier? For companies purchasing cable ties in bulk, supplier selection is also important. A professional supplier should provide consistent product quality and technical support. Important factors include: Material information Quality inspection process Stable production capacity OEM customization ability Reliable delivery For industries such as automotive, renewable energy, and industrial manufacturing, customized cable tie solutions can improve production efficiency and product reliability. A Simple Way to Select the Right Cable Tie The selection process can be summarized in three questions. First: Where will the cable tie be installed? Indoor, outdoor, high temperature, or industrial environment? Second: What material is suitable? Standard nylon, UV-resistant nylon, or stainless steel? Third: How much strength is required? Consider cable size, weight, vibration, and service life. By answering these questions, buyers can quickly identify the right cable tie solution. FAQ About Cable Tie Selection What is the most common cable tie material? PA66 nylon is the most commonly used cable tie material because it provides good strength, flexibility, and cost efficiency. Are nylon cable ties suitable for outdoor applications? Standard nylon cable ties are not always suitable for long-term outdoor use. UV-resistant cable ties are recommended for applications exposed to sunlight. How do I choose the correct cable tie size? Measure the cable bundle diameter and select a cable tie with enough length and tensile strength for secure installation. What cable tie is best for industrial applications? Heavy-duty nylon cable ties and stainless steel cable ties are commonly used for industrial applications because they provide higher strength and better durability. Conclusion Choosing the right cable tie is not only about holding cables together. It is about improving system reliability, reducing maintenance costs, and ensuring long-term performance. For simple indoor wiring, standard nylon cable ties may be enough. For automotive, renewable energy, and industrial applications, buyers should consider material, strength, environmental conditions, and supplier capability. A suitable cable tie may be a small component, but it can make a big difference in the reliability of the entire system.

A robotic wire harness is used to connect power, signal, sensor, motor, and control systems inside robots and automation equipment. Unlike ordinary wire harnesses, robotic harnesses often work in moving areas. They may bend, twist, vibrate, or move inside drag chains for a long time. For robot manufacturers and automation equipment suppliers, the right harness can improve system stability, reduce downtime, and make final assembly easier. What Is a Robotic Wire Harness? A robotic wire harness is a custom cable assembly designed for robotic systems. It connects different electrical parts, such as motors, sensors, controllers, encoders, cameras, switches, and power units. In many robots, the harness does not stay still. It may move with robot arms, joints, sliding rails, rotating platforms, or drag chains. Because of this, a robotic harness needs better flexibility, stronger protection, and more stable signal transmission than a standard cable. Why Robots Need Special Cable Assemblies Robots repeat the same motion again and again. A normal cable may work in a fixed position, but it can fail faster when used in moving equipment. Common problems include broken wires, loose connectors, cracked insulation, signal loss, and unexpected machine stops. A high flex robotic cable harness is designed to handle these working conditions. It helps protect the robot from bending stress, vibration, abrasion, and electrical interference. Robotic Wire Harness vs. Standard Wire Harness The main difference is movement. A standard wire harness is usually used for fixed connection. A robotic wire harness is designed for moving connection. Item Standard Wire Harness Robotic Wire Harness Working condition Mostly fixed Moving or vibrating Flexibility Normal High-flex design Bending resistance Limited Designed for repeated bending Torsion resistance Usually not needed Often required Signal protection Optional Often needs shielding Installation space Easier More compact and complex Main use General equipment Robots and automation systems If your equipment has moving arms, rotating joints, drag chains, or vibration, a standard harness may not be enough. Common Types of Robot Cable Assemblies Different robotic systems need different cable assemblies. Power Cable Harness Power harnesses supply electricity to motors, drives, actuators, controllers, and power modules. They need the correct wire gauge, insulation, voltage rating, and current capacity. Signal Cable Harness Signal harnesses connect sensors, switches, encoders, PLCs, and control boards. For stable signal transmission, shielding may be needed, especially when the cable is close to motors or power wires. Sensor Cable Assembly Robots use many sensors for position, distance, force, temperature, pressure, and object detection. Sensor cables may use M8, M12, JST, Molex, TE, Deutsch, aviation plugs, or customized connectors. Motor and Encoder Cable Harness Motor cables transmit power to servo motors or stepper motors. Encoder cables send feedback signals to the controller. If the encoder signal is unstable, the robot may lose accuracy or stop working. Drag Chain Cable Harness Drag chain harnesses are used when cables move repeatedly in a fixed path. They need high-flex conductors, abrasion-resistant jackets, and a proper bending radius. Key Design Points for Robotic Wire Harnesses A good robotic wire harness should be designed according to the robot’s movement and working environment. Flexibility Robotic cables need to bend many times without breaking. Fine-strand copper conductors are often used because they offer better flexibility than ordinary wires. Bending Radius Each cable has a minimum bending radius. If the cable is bent too tightly, the conductor, insulation, or shielding layer may be damaged. This is especially important in drag chains and robot arms. Torsion Resistance Some robot joints rotate. In these areas, the cable must handle twisting, not just bending. If the wrong cable is used, the internal wires may deform or break over time. Shielding Robots often contain motors, drives, controllers, and communication modules. These parts may create electrical noise. Shielded cables help protect signal wires from interference. Strain Relief The cable should not put direct stress on terminals or connectors. Heat shrink tubing, molded connectors, cable clamps, and protective sleeves can help reduce pulling and bending stress. Outer Protection Robot cables may rub against machine frames, cable carriers, or other parts. Protective sleeves, corrugated tubes, braided sleeves, PUR jackets, or TPE jackets can help improve wear resistance. Common Materials Used Material selection depends on the robot type and working environment. Part Common Options Purpose Conductor Bare copper, tinned copper, fine-strand copper Power and signal transmission Insulation PVC, PUR, TPE, silicone Electrical protection Shielding Aluminum foil, copper braid Anti-interference Outer jacket PVC, PUR, TPE Mechanical protection Connector JST, Molex, TE, M8, M12, Deutsch Stable connection Protection Braided sleeve, corrugated tube, heat shrink tube Wear protection For moving applications, PUR and TPE are often used because they offer better flexibility and abrasion resistance. For high-temperature areas, silicone wire may be a better choice. Where Are Robotic Wire Harnesses Used? A robotic wire harness is widely used in industrial automation and smart equipment. Common applications include: Industrial robotic arms Collaborative robots Welding robots Pick-and-place robots AGV and AMR robots Packaging machines Sorting systems CNC automation equipment Warehouse robots Medical robots Agricultural robots Inspection robots Each application has different requirements. For example, welding robots may need heat-resistant protection. AGV robots may need vibration-resistant connectors. Warehouse robots may need compact cable routing. How to Choose the Right Robotic Wire Harness Before ordering a custom robot cable assembly, you should confirm the basic technical details. Important information includes: Voltage and current Wire gauge Cable length Connector model Pinout Signal type Movement type Bending radius Working temperature Shielding requirement Protective sleeve requirement Waterproof or oil-resistant requirement Labeling requirement Testing requirement Order quantity If you already have drawings, samples, BOM files, or photos, the manufacturer can understand your project faster. If you do not have a full drawing, you can also send a physical sample or wiring diagram. Quality Testing Robotic wire harnesses should be tested before shipment. Common tests include continuity testing, short circuit testing, insulation resistance testing, pull force testing, crimping inspection, and visual inspection. For moving applications, bending or torsion testing may also be required. These tests help reduce wiring errors, loose terminals, signal problems, and early cable failure. Why Choose a Custom Robotic Wire Harness? Standard cables may be easier to buy, but they may not fit your robot perfectly. A custom robotic wire harness can be made according to your equipment structure, movement path, connector type, and installation space. You can customize cable length, wire gauge, connector brand, shielding, outer jacket, protective sleeve, labels, and packaging. For OEM buyers, custom harnesses can also improve assembly speed and reduce wiring mistakes during production. Conclusion A robotic wire harness is more than a simple electrical connection. It must support repeated movement, stable signal transmission, reliable power delivery, and long-term durability. For robots, AGVs, AMRs, and automation equipment, choosing the right robot cable assembly can reduce downtime and improve machine reliability. If your project involves bending, twisting, vibration, drag chains, or compact installation space, a custom high flex robotic cable harness is usually the better choice. FAQ What is a robotic wire harness? A robotic wire harness is a custom cable assembly used to connect power, signal, sensor, motor, and control systems inside robotic equipment. Why is a robotic wire harness different from a normal wire harness? It must handle repeated bending, twisting, vibration, and movement, while a normal harness is usually designed for fixed installation. Can robotic wire harnesses be customized? Yes. You can customize wire length, connector type, wire gauge, shielding, jacket material, sleeve, labels, and testing requirements. Do robotic wire harnesses need shielding? Shielding is often needed for signal cables, encoder cables, sensor cables, and communication cables to reduce interference. What information is needed for a quote? You can provide drawings, samples, connector models, pinout, cable length, wire gauge, voltage, current, working environment, and order quantity. CTA Need a custom robotic wire harness for your automation equipment? Send us your drawing, sample, BOM, or project requirements. We can help you review the wire structure, connector selection, material options, and testing requirements before production.

What Is an NTC Wire Harness? An NTC wire harness is a temperature sensing cable assembly used to detect, transmit, and monitor temperature changes in electrical and electronic equipment. It usually includes an NTC thermistor, wires, terminals, connectors, insulation materials, and protective packaging. The main function of an NTC wire harness is to help a device measure temperature accurately. When the temperature changes, the resistance value of the NTC thermistor changes. The control system then reads this signal and adjusts heating, cooling, charging, or protection functions. Because of this, NTC wire harnesses are widely used in home appliances, batteries, automotive electronics, HVAC systems, industrial equipment, medical devices, and electronic products. For manufacturers, choosing the right NTC wire harness is not only about connecting wires. It is about temperature accuracy, electrical stability, safety, installation fit, and long-term reliability. How Does an NTC Wire Harness Work? NTC means Negative Temperature Coefficient. An NTC thermistor is a temperature-sensitive resistor. When the temperature rises, its resistance decreases. When the temperature drops, its resistance increases. This resistance change allows the equipment to understand the current temperature condition. For example, in a battery pack, the NTC wire harness can monitor battery temperature during charging and discharging. If the temperature becomes too high, the battery management system can reduce charging current or stop operation to improve safety. In a home appliance, the NTC wire harness can help the control board adjust heating or cooling performance. In industrial equipment, it can provide temperature feedback to prevent overheating. NTC Wire Harness vs. Standard Wire Harness A standard wire harness is mainly used for power transmission or signal connection. It connects different components inside a device. An NTC wire harness has an additional temperature sensing function. It does not only transmit a signal. It also collects temperature data through the NTC thermistor. This means an NTC wire harness usually has higher requirements for: Resistance accuracy B value selection Temperature response speed Wire material Connector matching Insulation performance Waterproof or heat-resistant protection Stable crimping and soldering quality For this reason, custom NTC wire harness design is very common. Different devices often require different wire lengths, thermistor parameters, connector types, and installation methods. Main Structure of an NTC Wire Harness A complete NTC wire harness usually consists of several key parts. Each part affects the final performance of the temperature sensing system. NTC Thermistor The NTC thermistor is the core component of the harness. It determines the temperature sensing performance. Common parameters include: Resistance value, such as 10K, 50K, or 100K B value Accuracy tolerance Response time Working temperature range Probe size Encapsulation type Among these parameters, resistance value and B value are especially important. They must match the control board or temperature detection circuit of the equipment. If the wrong NTC parameter is selected, the device may read incorrect temperature data. This can affect performance, safety, or product stability. Wire Material The wire material should be selected according to the application environment. Different equipment has different requirements for temperature resistance, flexibility, insulation, and durability. Common wire materials include: PVC wire Silicone wire Teflon wire XLPE wire Shielded wire High-temperature wire For general home appliances, PVC wire is often enough. For high-temperature equipment, silicone wire or Teflon wire is usually a better choice. For devices that require better signal protection, shielded wire may be used. The wire length, wire gauge, color, and jacket material can also be customized according to the product design. Terminals and Connectors The connector is another important part of an NTC wire harness. It must fit the PCB board, controller, sensor interface, or internal device port. Common connector options include: JST connector Molex connector Dupont connector Ring terminal Spade terminal Custom plug Waterproof connector Connector selection should be confirmed before production. If customers already have drawings, samples, or connector models, the customization process will be faster and more accurate. A reliable connector helps ensure stable signal transmission and easy assembly during production. Protection and Encapsulation The NTC sensor part may need protection depending on the working environment. Different encapsulation methods can improve durability, waterproof performance, heat transfer, and installation stability. Common protection methods include: Epoxy resin encapsulation Metal probe housing Heat shrink tube protection Silicone sleeve Waterproof sealing Ring terminal fixing Screw-mounted structure For wet environments, waterproof sealing is important. For high-temperature applications, the sensor and wire insulation must be heat-resistant. For equipment that needs fast temperature response, the probe structure should support good thermal contact. Common Applications of NTC Wire Harnesses NTC wire harnesses are used in many industries where accurate temperature detection is required. Home Appliances In home appliances, an NTC wire harness helps the control system monitor temperature and adjust operation automatically. Common applications include: Refrigerators Air conditioners Water heaters Coffee machines Ovens Washing machines Rice cookers Dishwashers For example, in a water heater, the NTC wire harness detects water temperature and sends the signal to the controller. The system can then adjust heating power and prevent overheating. In a refrigerator, it helps monitor internal temperature and improves cooling control. Battery Packs and Energy Storage Systems Battery temperature monitoring is one of the most important applications of NTC wire harnesses. They are commonly used in: Lithium battery packs Battery management systems Energy storage systems Portable power stations Charging equipment Power tools Electric mobility products During charging and discharging, battery temperature may increase. An NTC wire harness helps the BMS monitor temperature changes in real time. If the battery becomes too hot, the system can reduce power output, stop charging, or trigger protection. This improves safety and extends battery service life. Automotive Electronics Modern vehicles use many temperature sensors. NTC wire harnesses are often used in automotive electrical systems because they are compact, stable, and easy to install. Common automotive applications include: Vehicle air conditioning Battery packs Motor control systems Seat heating systems Charging systems Cooling systems Engine-related temperature monitoring Automotive applications usually require stable connectors, good insulation, vibration resistance, and reliable long-term performance. Industrial Equipment Industrial machines often operate for long periods. Temperature monitoring is important for preventing damage and maintaining stable operation. NTC wire harnesses can be used in: Motors HVAC systems Power supply equipment Automation equipment Industrial control cabinets Heating equipment Pumps and compressors In these applications, the harness may need high-temperature wire, strong insulation, reinforced protection, or special connector types. Medical and Electronic Devices Some medical and electronic products also require precise temperature detection. Common applications include: Medical testing equipment Printers Computers Communication devices Smart devices Temperature control modules These products often require small-size sensors, clean assembly, stable signal transmission, and consistent batch quality. How to Choose the Right NTC Wire Harness Choosing the right NTC wire harness depends on the electrical parameters, working environment, and mechanical design of the equipment. Before ordering a custom NTC wire harness, you should confirm the following points. Confirm the Resistance Value and B Value The resistance value and B value must match your device control system. Common resistance values include: 5K 10K 50K 100K The most common option is 10K NTC, but different devices may require different specifications. You should provide the rated resistance, B value, accuracy requirement, and testing temperature point. If you are not sure which parameter is suitable, you can provide your application details and let the supplier help confirm the right option. Confirm the Working Temperature Range Different applications have different temperature conditions. For example, a household appliance may only need a normal temperature range. A heating device, battery system, or industrial machine may require higher temperature resistance. Common wire options include: PVC wire for general applications Silicone wire for better flexibility and heat resistance Teflon wire for high-temperature environments Shielded wire for signal protection The NTC element, wire, insulation, and protection material should all match the actual working environment. Confirm the Wire Length and Wire Gauge Wire length affects installation position and assembly convenience. If the wire is too short, the sensor may not reach the correct detection point. If the wire is too long, it may affect installation space and cable management. Wire gauge should also be selected based on flexibility, durability, and product design. For small electronic products, thin and flexible wire may be preferred. For industrial equipment, stronger wire may be required. Confirm the Connector Type The connector must match your PCB board, controller, or device interface. Before production, it is best to provide: Connector brand Connector model Pin number Terminal type Pitch size Photos or samples Wiring diagram If the connector information is unclear, the supplier may help identify it based on samples or pictures. Confirm the Sensor Encapsulation and Installation Method The NTC sensor can be installed in different ways. The installation method affects temperature response, stability, and service life. Common options include: Probe type Ring terminal type Surface-mounted type Screw-fixed type Insert type Waterproof sealed type Heat shrink tube type For battery packs, the sensor may be fixed close to the battery cell. For heating equipment, the sensor may need direct contact with the heating area. For outdoor or humid environments, waterproof protection may be required. What Information Is Needed for Custom NTC Wire Harness Production? For custom production, clear technical information can reduce communication time and improve sample accuracy. You can prepare the following details: Custom Item Information Needed NTC parameter Resistance value, B value, tolerance Wire Material, wire gauge, color, temperature rating Wire length Total length and branch length Connector Model, pin number, terminal type, pitch Encapsulation Probe, epoxy, ring terminal, waterproof design Application environment Temperature, humidity, vibration, waterproof requirement Certification RoHS, REACH, UL or other requirements Packaging Individual package, label, bulk package If you already have a drawing, sample, or photo, the supplier can usually make the NTC wire harness more accurately. What Makes a High-Quality NTC Wire Harness? A high-quality NTC wire harness should provide stable sensing performance, reliable connection, and consistent quality during mass production. Stable Temperature Sensing The NTC thermistor should have accurate resistance and stable response. The resistance value should match the required temperature curve. Stable temperature sensing helps equipment make correct control decisions. Reliable Connection Terminals should be firmly crimped or soldered. Connectors should fit smoothly and remain stable after repeated use. Poor crimping or loose connectors may cause unstable signals or product failure. Good Insulation and Heat Resistance The wire insulation and protection material should be suitable for the operating environment. For high-temperature applications, heat-resistant materials are necessary. For humid or outdoor environments, waterproof sealing may be required. Consistent Dimensions In batch production, wire length, stripping length, terminal position, connector direction, and sensor location should remain consistent. Good dimensional consistency helps customers improve assembly efficiency and reduce production problems. Complete Quality Testing A reliable NTC wire harness supplier should provide necessary quality checks before shipment. Common tests include: Resistance test Continuity test Pull force test Appearance inspection Temperature test Waterproof test Connector matching test Testing helps ensure that each harness meets the required electrical and mechanical standards. Why Choose a Custom NTC Wire Harness Supplier? Different devices have different temperature detection positions, circuit requirements, installation spaces, and working environments. A standard NTC wire harness may not fit every project. A custom NTC wire harness supplier can design and produce the harness according to your specific equipment needs. Custom service can include: OEM and ODM support Sample production Small batch and mass production Connector matching Wire material selection NTC parameter confirmation Drawing and sample confirmation Product testing Custom packaging For manufacturers, custom wire harness production can improve installation efficiency, reduce assembly problems, and make the final product more reliable. Custom NTC Wire Harness Production Process A typical custom NTC wire harness project includes the following steps: Customer provides drawings, samples, photos, or technical requirements. The engineering team confirms NTC parameters, wire material, connector type, and encapsulation method. Samples are produced for testing. The customer tests and confirms the sample. Mass production starts after approval. Each batch goes through quality inspection. Products are packed and shipped according to customer requirements. This process helps ensure that the final NTC wire harness matches the customer’s equipment and application environment. Frequently Asked Questions About NTC Wire Harnesses Can an NTC wire harness be waterproof? Yes. An NTC wire harness can be designed with waterproof sealing, heat shrink tubing, epoxy encapsulation, silicone protection, or waterproof connectors. The right solution depends on the actual application environment. Can an NTC wire harness withstand high temperature? Yes. For high-temperature applications, silicone wire, Teflon wire, high-temperature NTC elements, and suitable protection materials can be used. Can you customize an NTC wire harness according to samples? Yes. Customers can provide samples, drawings, photos, connector models, or wiring diagrams. The supplier can produce the harness according to the confirmed specification. What is the common resistance value of an NTC wire harness? Common resistance values include 10K, 50K, and 100K. However, the correct value depends on the control system and temperature detection circuit of your device. What is the MOQ for custom NTC wire harnesses? The MOQ depends on the connector, wire material, NTC thermistor type, and production complexity. Standard materials usually support lower MOQ, while special connectors or special materials may require a higher MOQ. How long does production take? Sample production is usually faster than mass production. The final delivery time depends on material availability, order quantity, and customization requirements. Get a Custom NTC Wire Harness for Your Project An NTC wire harness plays an important role in temperature detection, equipment protection, and system control. Whether it is used in home appliances, battery packs, automotive electronics, industrial machines, or medical devices, the right design can improve product safety and reliability. If you need a custom NTC wire harness, you can send your NTC parameters, wire length, connector model, application details, drawings, or sample photos. Our team can help you confirm the right structure and provide a suitable production solution for your project.

When you need a wire harness for industrial equipment, display screens, vehicles, medical devices, communication products, or new energy systems, choosing the right custom wire harness manufacturer is very important. A wire harness may look simple from the outside. However, it affects the safety, performance, and stability of the entire product. The wrong cable length, connector type, wire gauge, or assembly process can cause signal problems, power failure, or unstable operation. That is why many companies prefer to work with an experienced manufacturer instead of buying standard cables from the market. A professional supplier can provide customized design, stable quality, fast sampling, and reliable mass production support. What Is a Custom Wire Harness? A custom wire harness is a group of wires, cables, connectors, terminals, sleeves, and protective materials assembled according to a specific design. It is made to match the electrical and mechanical requirements of your product. Unlike standard cables, a custom wire harness can be designed according to: Connector type Cable length Wire gauge Pin number Terminal specification Shielding requirement Working environment Application industry Quantity requirement Drawing or sample For example, one project may need a small signal cable for an LCD display, while another project may need a power cable assembly for industrial equipment. Each application has different requirements, so customization is often necessary. Why Custom Wire Harnesses Are Important A high-quality wire harness helps improve product reliability. It also makes installation easier and reduces wiring mistakes during assembly. For many manufacturers, custom cable assemblies can bring several benefits: First, they help save space inside the product. A properly designed harness can fit the internal structure better. Second, they improve production efficiency. Workers can install a finished harness faster than connecting many single wires one by one. Third, they reduce failure risks. When wires, terminals, and connectors are assembled and tested correctly, the final product becomes more stable. Finally, custom wire harnesses can support special applications, such as high temperature environments, waterproof systems, vibration conditions, or signal transmission requirements. Common Applications of Custom Wire Harnesses Custom wire harnesses are widely used in many industries. Some common applications include: Industrial Equipment Industrial machines often need stable power and signal transmission. Custom harnesses can be used in control panels, automation equipment, sensors, motors, and testing devices. LCD Displays and Monitors LVDS cable assemblies, LCD cables, and display cable harnesses are commonly used in screens, display modules, medical monitors, POS machines, and industrial control displays. Automotive and Electric Vehicles Automotive wire harnesses are used for lighting, batteries, sensors, control systems, and internal electronic devices. They need good durability and stable connection performance. Medical Devices Medical equipment requires clean, stable, and accurate signal transmission. Cable assemblies for this industry must be carefully produced and tested. Communication and RF Products RF cable assemblies, antenna cables, and coaxial cables are used in wireless devices, communication modules, routers, GPS systems, and IoT products. New Energy Systems New energy equipment often requires reliable power cable assemblies and signal harnesses for batteries, controllers, inverters, and other electrical systems. How to Choose the Right Custom Wire Harness Manufacturer Choosing a supplier is not only about price. You also need to check their engineering ability, quality control, communication efficiency, and production capacity. 1. Check Customization Ability A reliable custom wire harness manufacturer should be able to produce according to your drawings, samples, or technical requirements. Before placing an order, you can ask whether the supplier can support: OEM and ODM service Connector replacement Small batch samples Mass production Wire length customization Special packaging Application-based design suggestions If the supplier understands your project quickly and can give practical advice, it usually means they have real production experience. 2. Confirm Connector and Cable Options Different projects require different connectors and wires. A good manufacturer should be familiar with many common connector brands and cable types, such as Molex, JST, Hirose, JAE, TE, I-PEX, Dupont, IDC, FFC, FPC, coaxial cable, and ribbon cable. The supplier should also help you choose the right wire gauge, pitch, pin number, shielding material, and insulation material according to your application. 3. Ask About Testing Process Testing is one of the most important steps in wire harness production. Every finished cable assembly should be checked before shipment. Common tests include: Continuity test Open circuit test Short circuit test Pull force test Visual inspection Connector matching test Function test if required For some special projects, additional tests may be needed, such as waterproof testing, high voltage testing, or signal performance testing. 4. Review Production Experience A supplier with rich experience can help you avoid many problems. For example, they may notice that a cable is too short for installation, a connector is hard to source, or a wire gauge is not suitable for the current requirement. Experienced manufacturers can also improve the structure of the wire harness, reduce assembly difficulty, and make the product easier to use in mass production. 5. Consider Lead Time and Delivery Stability Fast sampling is important for product development. Stable delivery is important for long-term cooperation. Before choosing a supplier, you should confirm: Sample lead time Mass production lead time MOQ Monthly supply capacity Packaging method Shipping options A good supplier should give clear answers instead of vague promises. What Information Should You Provide for a Custom Wire Harness Quote? To get an accurate quotation, it is better to provide detailed information at the beginning. This helps the manufacturer understand your requirements faster. You can prepare the following details: Product drawing or sample photo Connector model Wire specification Cable length Pin definition Quantity Application Working environment Special testing requirements Packaging requirements If you do not have a drawing, you can also send clear photos, connector details, and basic usage information. A professional supplier can help you confirm the next step. Why Work with a Professional Cable Assembly Supplier? Working with a professional cable assembly supplier can save time and reduce risks. Instead of searching for wires, connectors, terminals, and tools separately, you can get a complete solution from one manufacturer. A qualified supplier can support your project from sample development to batch production. They can also help improve cable layout, choose suitable materials, and ensure each cable assembly meets your actual application needs. For B2B buyers, this is especially important. Stable quality, clear communication, and on-time delivery can make your supply chain more reliable. FAQ About Custom Wire Harness Manufacturing What is the MOQ for custom wire harnesses? The MOQ depends on the product structure, connector type, and material availability. Some simple cable assemblies can support small trial orders, while special connectors may require a higher MOQ. Can I customize the cable length and connector? Yes. Cable length, connector type, wire gauge, pin number, color, label, sleeve, and packaging can usually be customized according to your project requirements. Can you produce according to my drawing? Yes. Most custom wire harness manufacturers can produce according to drawings, samples, or technical specifications. How long does it take to make samples? Sample time depends on material availability and product complexity. If all materials are available, simple samples can usually be completed faster. What tests are required for wire harnesses? Basic tests usually include continuity testing, short circuit testing, open circuit testing, and visual inspection. Special applications may require additional testing. Conclusion Choosing the right custom wire harness manufacturer can help you improve product quality, reduce assembly problems, and build a more stable supply chain. Before placing an order, you should check the supplier’s customization ability, connector options, testing process, production experience, and delivery stability. A good cable assembly supplier is not just a manufacturer. It is also a project partner that helps you turn your design into a reliable finished product.

In the field of electronic connectors, FFC and FPC are two common flexible connectors that play a key role in many electronic devices. However, although they may be similar in appearance, there are significant differences in structure, performance and application. 1. Structural differences FFC (Flexible Flat Cable) is a flat cable made of polyester film or polyimide film as the substrate and copper foil as the conductor, which is embossed by a high-precision embossing machine. Its structural characteristics are that it has a large number of conductors, a small spacing, can be bent and folded, and has excellent flexibility and folding resistance. FPC (Flexible Printed Circuit) is a circuit board made of flexible insulating materials (such as polyimide or polyester film) as the substrate through a printing process. Its structural characteristics are that the conductor layer and the insulating layer are stacked alternately, which can realize multi-layer circuits and complex circuit layouts. 2. Performance differences Due to structural differences, FFC and FPC also differ in performance. The advantage of FFC is its high flexibility and folding resistance, which allows it to bend and fold in a small space and is suitable for various complex electronic devices. In addition, FFC has a large number of conductors and a small spacing, which can achieve high-density circuit connections. The advantage of FPC is its multi-layer circuit and complex circuit layout capabilities, which allows it to achieve higher circuit integration and more complex circuit functions. In addition, the conductor layer and the insulation layer of FPC are stacked alternately, which can effectively reduce electromagnetic interference (EMI) and crosstalk and improve the quality of signal transmission. 3. Application Differences Due to differences in performance and structure, FFC and FPC also differ in application. FFC is mainly used to connect circuit boards between electronic devices, such as computers, communication equipment, medical equipment, industrial control equipment, etc. Due to its high flexibility and folding resistance, it can adapt to various complex equipment layouts and space constraints. FPC is mainly used to manufacture flexible circuit boards in various electronic devices, such as mobile phones, tablets, wearable devices, etc. Due to its multi-layer circuit and complex circuit layout capabilities, it can achieve higher circuit integration and more complex circuit functions, making electronic devices thinner, more efficient and more multifunctional. In general, there are significant differences between FFC and FPC in structure, performance and application. As a professional electronic connector manufacturer, we recommend that when choosing to use FFC or FPC, it should be decided based on specific equipment requirements and application scenarios. Factors to consider when choosing include equipment complexity, space limitations, circuit integration, and signal transmission quality.

High voltage wiring harness connection method 1.Crimp connection Crimp connection is to use tools or equipment to deform the connector joints and press them onto the wires through pressure, so that the terminals of the connector and the wires form a mechanical connection, giving them good mechanical and electrical properties. At present, there are three known connection methods for automobile wiring harnesses, but foreign wiring harness cables and plug-in terminals are basically connected by crimping. This process technology is very mature and stable and suitable for actual mass production. Advantages of crimp connections: Reliable connection, high production efficiency and adaptable to automated production; The connection process does not require solder and flux, which overcomes the difficulty of cleaning the weldment and the easy oxidation of the welding surface; At the same time, the crimping process has low environmental requirements, is simple to operate, and is not prone to human failure. However, its shortcomings are also obvious. After crimping, there is still incomplete contact of the wires, and the contact resistance increases during long-term operation. Eventually, the joints are prone to heat and the power loss is increased, affecting the safety of the circuit. Among them, the crimping height plays a vital influence on the crimping connection. The mechanical properties of crimped terminals will increase as the crimping height decreases, but after exceeding a certain critical value, the mechanical properties will drop rapidly; the electrical properties of crimped terminals will first increase as the crimping height decreases and then tend to level, and finally gradually decreased. Therefore, it is necessary to determine an appropriate crimping height to ensure good mechanical and electrical properties as much as possible. 2. Welding connection Since traditional welding processes are no longer able to meet development needs, ultrasonic welding processes are gradually being used in the welding of high-voltage wire harnesses for new energy vehicles. The advantages of ultrasonic welding process are: The welding range is wider, not only suitable for the same kind of materials, but also the welding between dissimilar materials with different properties can achieve rapid prototyping effect; The welding strength is higher. The use of ultrasonic welding does not require external heating of the welded specimen, so there will be no residual stress due to heating of the specimen. At the same time, higher welding strength, better stability and fatigue resistance will be obtained. strength; Welding efficiency is higher. Ultrasonic welding does not require welding rods and cooling operations. It can quickly complete spot welding, continuous welding and other operations, and saves more power consumption; It is safer and more environmentally friendly. Ultrasonic welding does not require additional flux and will not pollute the structure of the weldment, ensuring the integrity of the weldment to the greatest extent. shortcoming: As the thickness and hardness of the welding workpiece increase, the difficulty of welding increases sharply, and the required welding power is higher, which indirectly increases the manufacturing difficulty and cost of high-power ultrasonic welding machines; The expanded surface of the ultrasonic welded workpiece will be relatively wide, making it difficult to install in a narrow location.

In the world of electronics and electrical engineering, Molex Cable is a term that frequently surfaces, especially in discussions about power connections, computer hardware, and industrial equipment. But what exactly is a Molex Cable, and why has it become such a crucial component in various applications? This article dives deep into the basics, uses, and importance of Molex Cables, answering all your questions along the way.   What is a Molex Cable? A Molex Cable typically refers to a cable with connectors manufactured by Molex, a globally recognized company specializing in interconnect solutions. Molex connectors are widely used in computers, power supplies, and industrial equipment due to their reliability, versatility, and robust design. The term "Molex Cable" often describes the combination of the cable itself plus the Molex connectors attached to it. The Molex connector, first introduced in the 1950s, quickly became a standard in electronic devices. Today, it remains a go-to solution for connecting power supplies to various components, such as hard drives, fans, and other peripheral devices.     Anatomy of a Molex Cable To understand Molex Cable, it's helpful to break it down into its core components: The Connector: Molex connectors typically feature a durable plastic housing with pins or sockets for connecting wires. The most commonly recognized version is the four-pin Molex connector, which has been used extensively in desktop computers. The Cable: The cables connected to Molex connectors are often power cables, but they can also include data lines depending on the application. These cables are built to handle various voltages and currents, making them reliable in powering devices. Pins and Sockets: Inside the Molex connector are pins (male) and sockets (female) that form a secure and consistent electrical connection. The design ensures a tight fit, reducing the risk of accidental disconnections.   Common Uses of Molex Cable 1. Computer Hardware One of the most recognized applications of Molex Cables is in computer hardware. The four-pin Molex connector was once a staple in powering internal components such as hard drives, CD/DVD drives, and cooling fans. While other connectors like SATA have largely replaced Molex in newer systems, many older devices and components still rely on Molex connections. 2. Power Supply Connections The Molex Cable remains a popular choice for connecting power supplies to various devices in industrial and commercial applications. Its durability and ability to handle high currents make it ideal for powering equipment that requires stable and reliable connections. 3. Industrial Applications In industrial settings, Molex Cables are often used in machinery and automation systems. They are designed to withstand harsh environments, making them a reliable solution for connecting motors, sensors, and control systems. 4. Consumer Electronics Beyond computers, Molex connectors and cables are also found in consumer electronics, such as printers, gaming consoles, and audio equipment. Their versatility allows them to be adapted for a wide range of uses.   Advantages of Molex Cables Why are Molex Cables so widely used? Here are some of their key benefits: 1. Durability Molex connectors are built to last. Their sturdy plastic housing and secure pin-and-socket design ensure long-lasting performance, even in demanding environments. 2. Versatility The Molex Cable is compatible with a wide range of devices and applications, from computers to industrial machinery. This adaptability makes it a popular choice across industries. 3. Reliability With a secure connection and the ability to handle significant currents, Molex connectors provide a dependable solution for powering devices. 4. Customizability Molex offers a variety of connectors and cables, allowing for custom configurations to suit specific needs. This flexibility is especially valuable in industrial and commercial applications.   Feature Molex Cable SATA Cable Pin Count 4 pins 15 pins Usage Older hard drives, fans Modern hard drives, SSDs Flexibility Less flexible More flexible Power Delivery Reliable for older devices Optimized for newer devices   While SATA is more efficient for data transfer and power delivery in modern devices, Molex Cables remain essential for legacy hardware and specific applications.    

What is Coaxial Cable? Coaxial cable, often just called "coax," is a widely used type of electrical cable primarily designed for signal transmission. It consists of a central conductor, usually made of copper, that is surrounded by an insulating layer, a metallic shield, and an outer insulating jacket. The purpose of the shield is to protect the signal from interference and to prevent electromagnetic radiation from affecting the surrounding environment. Key Characteristics of Coaxial Cable: Size: Coaxial cables have a larger diameter compared to micro coaxial cables, typically ranging from 3mm to 12mm. Applications: Coaxial cables are most commonly used in television and radio broadcasting, internet connections, and CCTV surveillance systems. Signal Protection: The shielding in coaxial cables helps prevent signal loss and minimizes electromagnetic interference (EMI). Coaxial cables can handle high bandwidths, making them suitable for applications that require long-distance signal transmission with minimal degradation. What is a Micro Coaxial Cable? A Micro Coaxial Cable is a miniature version of the standard coaxial cable. It is designed for use in compact, high-performance applications where space is limited. Despite its smaller size, micro coaxial cables maintain the same essential structure as regular coaxial cables— a central conductor, an insulating layer, a shield, and an outer jacket—but all of these components are scaled down to fit into tighter spaces. Key Characteristics of Micro Coaxial Cable: Miniaturized: Micro coaxial cables are typically less than 1mm in diameter, making them ideal for applications where space-saving is a priority. Flexibility: These cables are more flexible than standard coaxial cables, which allows them to be routed through tight areas in electronic devices. High-frequency performance: Micro coaxial cables still offer high-frequency performance despite their small size, making them suitable for high-speed data transmission in small devices. Because of their size and flexibility, micro coaxial cables are often used in technologies like mobile phones, wearables, drones, and medical devices. Key Differences Between Coaxial Cable and Micro Coaxial Cable 1. Size and Flexibility One of the most significant differences between coaxial cables and micro coaxial cables is their size. Coaxial cables are typically much thicker, making them suitable for installations that require longer distances and higher durability. On the other hand, micro coaxial cables are much thinner and more flexible, making them ideal for compact devices that need to be lightweight and small. Coaxial Cable: Usually over 3mm in diameter, with a robust construction that prioritizes durability. Micro Coaxial Cable: Less than 1mm in diameter, allowing for more flexibility and use in smaller, more intricate devices. 2. Signal Integrity and Loss While both types of cables are designed to maintain signal integrity, micro coaxial cables can experience higher signal loss over distance due to their smaller conductor size. The miniaturization of the cable leads to a slight increase in resistance, which can result in more signal attenuation. However, for short-distance applications, the micro coaxial cable is still highly reliable. Coaxial Cable: Lower signal loss over longer distances due to its larger conductor and thicker insulation. Micro Coaxial Cable: Slightly higher signal loss but still capable of reliable performance in shorter-distance applications. 3. Bandwidth and Frequency Range Both coaxial cables and micro coaxial cables support high-frequency signals, but coaxial cables are better suited for high-bandwidth applications that require the transmission of large amounts of data. This makes coaxial cables ideal for long-distance communications, such as cable television or internet data transmission. In contrast, micro coaxial cables are designed for use in smaller systems where space is more important than bandwidth. While micro coaxial cables can support high-frequency signals, their size limits their application to shorter distances. Coaxial Cable: Better for long-distance, high-bandwidth transmission. Micro Coaxial Cable: Best for short-range applications in compact devices. 4. Applications The different sizes and performance characteristics of coaxial cables and micro coaxial cables make them suitable for different applications. Coaxial Cable: Commonly used for: Television and cable services Internet connections (broadband) CCTV and security systems Satellite communications RF (radio frequency) applications Micro Coaxial Cable: Commonly used in: Smartphones, tablets, and wearable devices (e.g., smartwatches) Medical devices (e.g., endoscopes) Drones and unmanned aerial vehicles (UAVs) Automotive systems High-performance embedded systems in industrial electronics 5. Cost and Manufacturing Micro coaxial cables tend to be more expensive than coaxial cables due to their more complex manufacturing process and smaller components. The cost of micro coaxial cables can be particularly high when specialized materials are required to meet specific performance needs. In contrast, coaxial cables are less expensive to produce and more widely available, making them the go-to option for many traditional and long-distance applications. Coaxial Cable: Less expensive to manufacture, ideal for mass production. Micro Coaxial Cable: More expensive due to miniaturization and specialized manufacturing processes. Choosing the Right Cable for Your Needs Deciding between coaxial cables and micro coaxial cables depends largely on the specific requirements of your application. If you need a cable that can carry high-frequency signals over long distances with minimal loss, coaxial cables are likely the best option. On the other hand, if you’re working with small, portable devices or need a cable that can fit into tight spaces, micro coaxial cables are the better choice. Here’s a quick comparison of when to use each type of cable: Coaxial Cable: Best for longer-distance transmission, high-bandwidth applications, and scenarios where durability is a priority. Micro Coaxial Cable: Ideal for compact devices, short-range signal transmission, and applications where flexibility and size are critical.

LVDS (Low Voltage Differential Signaling) is a technology used for high-speed digital video signal transmission. It is widely used in display connections due to its low power consumption, high speed, and low electromagnetic interference. The specifications of LVDS cables usually include the number of channels (ch), bit width (bit), and number of pins (pin).   Case Study: 1 ch, 6 bit, 40 pin LVDS cable vs. 2 ch, 6 bit, 40 pin LCD screen   1. Technical Specification Comparison   1 ch, 6 bit, 40 pin LVDS cable: Single channel means that data is transmitted through one channel. 6 bits refers to the color depth of each pixel. The 40 pins include data lines, clock lines, power, and ground lines. 2 ch, 6 bit, 40 pin LCD screen: Dual channel means that the display data of the screen is divided into two parts, which may be for higher refresh rate or larger screen resolution. Other parameters are the same as the cable.   2. Compatibility issues   Difference in channel number: The most critical issue is the difference in channel number. 1 ch cable can only transmit half the amount of data, while 2 ch screen requires two data streams. This means that in theory, a single channel cable cannot fully meet the needs of a dual channel screen.   Pin compatibility: Although the number of pins is the same, the pin allocation and purpose may be different. Some pins may not be used or used for other functions in a single channel cable.   3. Attempts in actual application   Case 1: In some DIY projects, users try to use converters or rewire to use incompletely matched LVDS cables. The results show that although the screen can be lit, problems such as inaccurate colors, reduced resolution, or screen segmentation may occur.   Case 2: A company tried to develop an adapter to split a single-channel signal into two channels, but found that additional electronic components were needed to handle signal synchronization and data splitting, which increased cost and complexity, and performance stability was difficult to guarantee.   4. Solution   Matched hardware: The safest and most performance-guaranteed method is to use an LVDS cable that fully matches the specifications of the LCD screen, that is, a 2 ch, 6 bit, 40 pin cable. Signal converter: If you must use an existing cable, you can consider a professional signal converter or splitter, but be aware of the compatibility of the converter and possible performance loss. Customized cable: For special application scenarios, you can consider customizing LVDS cables, but this is usually more expensive.   Conclusion   Although in some cases, it is technically possible to connect LVDS cables of different specifications to LCD screens, this is not always feasible or ideal. The best practice is to use fully matched cables to ensure display quality and system stability. For professional applications, it is recommended not to risk using unmatched cables to avoid equipment damage or display problems.

Understanding Their Differences and Applications In the world of electronics, the terms FFC and FPC often come up when discussing flexible cable solutions. Whether in consumer electronics, automotive systems, or industrial applications, these cables are essential for connecting different components in compact and flexible ways. In this article, we’ll explore what FFC FPC Cable solutions are, how they differ, and where they are used. We will also discuss the role of these cables in wire harness systems. What is FFC? FFC (Flexible Flat Cable) Overview FFC stands for Flexible Flat Cable. It is a type of electrical cable that consists of multiple flat, thin insulated conductors arranged parallel to each other. The flat design makes FFC cables highly flexible, allowing them to fit into tight spaces and move with the components they connect. Key Features of FFC High Flexibility: Due to their flat and thin structure, FFC cables can easily bend and fold, making them ideal for applications with moving parts. Cost-Efficient: FFC cables are relatively simple in design and manufacturing, making them an affordable option for many applications. Common Use in Consumer Electronics: FFC cables are widely used in devices like printers, laptops, and TVs where space is limited, and flexibility is necessary. Typical Applications of FFC FFC cables are commonly used in: Printers and Scanners: Connecting the moving parts to the main circuit. Laptops: Connecting display screens to the motherboard. Automotive Electronics: Used in dashboard displays and infotainment systems. What is FPC? FPC (Flexible Printed Circuit) Overview FPC stands for Flexible Printed Circuit. Unlike FFC, which consists of parallel wires, FPC is a more advanced design where circuits are printed onto flexible sheets, often made from polyimide or polyester films. FPCs can have multiple layers, enabling more complex circuit designs in a flexible format. Key Features of FPC High Integration: FPCs allow for multiple layers of circuits, making them suitable for complex electronic devices. Durability and Flexibility: FPCs are more durable than FFC cables, especially in applications where repeated bending or extreme conditions are involved. Space-Efficient: The complex, printed circuit design allows FPCs to save significant space in devices, which is crucial in compact electronics like smartphones. Typical Applications of FPC FPC cables are often found in: Smartphones and Tablets: Connecting internal components like cameras and sensors. Wearable Devices: Used for the compact and flexible connections required in smartwatches. Medical Devices: Employed in systems that need both compact designs and high reliability. Key Differences Between FFC and FPC While both FFC FPC Cable types are flexible, they differ significantly in structure, complexity, and application. Structure: FFC is a simple ribbon of parallel wires, whereas FPC is a printed circuit on a flexible substrate, often with multiple layers. Manufacturing Process: FFC cables are easier and cheaper to manufacture, while FPC requires more complex production techniques like photolithography. Applications: FFC is more suitable for simple, flexible connections in low-cost devices, while FPC is used in high-performance applications where space and circuit complexity are essential. The Role of FFC and FPC Cables in Wire Harness Systems In wire harness systems, FFC and FPC cables play critical roles in organizing and protecting electrical connections. Wire harnesses bundle cables together to ensure safe and efficient signal transmission, especially in environments like automotive electronics or industrial machinery. FFC in Wire Harnesses: FFC cables are often used in simpler wire harness systems where flexibility is required but the circuit design is not overly complicated. Their cost-efficiency makes them ideal for high-volume consumer electronics. FPC in Wire Harnesses: FPC cables are used in more complex wire harness systems, particularly in industries like automotive, aerospace, and medical devices, where space-saving and durability are critical. Conclusion Both FFC FPC Cable types serve essential roles in modern electronics, with each offering unique advantages. FFC is perfect for low-cost, flexible connections in consumer electronics, while FPC excels in high-performance applications that demand complex circuits in compact spaces. Understanding the differences between these two cable types is crucial for choosing the right solution for your specific application, especially when designing efficient wire harness systems.

In our daily lives, wiring harnesses are everywhere. From home appliances to cars, airplanes, and medical devices, wiring harnesses are an important part of modern technology. So, what is a wiring harness? A wiring harness is a group of wires bundled together to transmit electrical signals, power, and data. The size of a wiring harness can be very small or very large, depending on its application area.   Definition and classification of wiring harnesses   Wire harnesses have many different names, including: electrical wiring harnesses, wiring harnesses, cable assemblies, coaxial cables, radio frequency cables, injection molded cable assemblies, fiber optic cables, etc. Wire harnesses can be classified according to their application areas, sizes, materials, and functions.   Wiring harnesses in daily life   In our daily lives, the home appliances we use, such as refrigerators, washing machines, air conditioners, TVs, and various devices are composed of wiring harnesses. These wiring harnesses are responsible for transmitting power and signals so that these devices can work properly. For example, when you turn on the TV, the wiring harness transmits electrical signals from the motherboard to the display screen, allowing you to watch TV programs.   Application of wiring harnesses in various industries   The application of wiring harnesses in various industries is very wide. Here are the major industries that use wire harnesses:   1. Aerospace   In the aerospace industry, wire harnesses are an essential part of aircraft and missiles. These wire harnesses are responsible for transmitting electrical signals, power, and data so that aircraft and missiles can work properly. For example, the flight control system, navigation system, and communication system of the aircraft all rely on wire harnesses to transmit signals and data.   Case: Boeing 787 Dreamliner   The Boeing 787 Dreamliner is one of the most advanced commercial aircraft in the world. The aircraft's electrical system consists of more than 100,000 wires that are bundled into wire harnesses that are responsible for transmitting electrical signals, power, and data. The total length of these wire harnesses is more than 100 kilometers, making the Boeing 787 Dreamliner one of the most complex electrical systems in the world.   2. Automotive   In the automotive industry, wire harnesses are an essential part of the car. These wire harnesses are responsible for transmitting electrical signals, power, and data so that the car can work properly. For example, the engine control system, transmission system, and safety system of the car all rely on wire harnesses to transmit signals and data.   Case: Tesla Model S   The Tesla Model S is one of the most advanced electric vehicles in the world. The car's electrical system consists of more than 10,000 wires bundled into harnesses that transmit electrical signals, power, and data. The total length of these harnesses is more than 10 kilometers, making the Tesla Model S one of the most complex electrical systems in the world.   3. High-tech electronics   In the high-tech electronics industry, wiring harnesses are an important part of electronic equipment. These harnesses are responsible for transmitting electrical signals, power, and data so that electronic equipment can work properly. For example, the motherboard of a computer, the circuit board of a smartphone, and the power system of a server all rely on wiring harnesses to transmit signals and data. Case: Apple iPhone   The Apple iPhone is one of the most popular smartphones in the world. The phone's electrical system consists of more than 1,000 wires bundled into harnesses that transmit electrical signals, power, and data. The total length of these harnesses is more than 1 meter, making the Apple iPhone one of the most complex electrical systems in the world.   4. Manufacturing equipment   In the manufacturing equipment industry, wiring harnesses are an important part of equipment. These harnesses are responsible for transmitting electrical signals, power, and data so that equipment can work properly. For example, the control system of a robot, the electrical system of a CNC machine tool, and the control system of an automated production line all rely on wire harnesses to transmit signals and data.robots in the world.   The robot's electrical system consists of more than 5,000 wires that are bundled into wire harnesses to transmit electrical signals, power, and data. The total length of these wire harnesses is more than 5 kilometers, making the ABB robot one of the most complex electrical systems in the world.   5. Consumer devices   In the consumer device industry, wire harnesses are an important part of the equipment. These wire harnesses are responsible for transmitting electrical signals, power, and data so that the equipment can work properly. For example, the electrical system of a TV, the electrical system of an audio system, and the electrical system of a home appliance all rely on wire harnesses to transmit signals and data.   Case: Samsung Smart   TV The Samsung Smart TV is one of the most popular smart TVs in the world. The TV's electrical system consists of more than 2,000 wires that are bundled into wire harnesses to transmit electrical signals, power, and data. The total length of these wire harnesses is over 2 meters, making Samsung Smart TVs one of the most complex electrical systems in the world.   6. Life Sciences - Medical   In the life sciences and medical industries, wire harnesses are an important part of equipment. These wire harnesses are responsible for transmitting electrical signals, power, and data so that the equipment can work properly. For example, the electrical system of a pacemaker, the electrical system of a ventilator, and the electrical system of an MRI machine all rely on wire harnesses to transmit signals and data. Case: Pacemaker   The pacemaker is one of the most advanced medical devices in the world. The electrical system of the device consists of more than 100 wires, which are bundled into wire harnesses and are responsible for transmitting electrical signals, power, and data. The total length of these wire harnesses is over 1 meter, making the pacemaker one of the most complex electrical systems in the world.   In summary, wire harnesses are widely used in various industries. From aerospace to life sciences and medical, wire harnesses are an important part of modern technology. The design, manufacture, and testing of wire harnesses require a high degree of expertise and technology, making wire harnesses the nervous system of modern technology.      

When selecting the right display interface for your project, understanding the key differences between LVDS and eDP is crucial. Both technologies are widely used in connecting displays, but they cater to different needs. This article will help you explore these two technologies in detail, with a special focus on LVDS cable assembly, and guide you in choosing the right solution for your project.   What is LVDS? LVDS (Low Voltage Differential Signaling) is a method of high-speed data transmission that uses differential signaling to transmit data over pairs of wires.    Key Features of LVDS Low Power Consumption: LVDS is designed to use low voltage, making it a power-efficient choice for battery-powered devices like laptops and embedded systems. High Data Transfer Rates: LVDS supports data rates of up to several gigabits per second, making it suitable for high-resolution displays and fast communication systems. Noise Resistance: LVDS uses differential signaling, which reduces electromagnetic interference (EMI) and ensures stable data transmission. Long Cable Runs: LVDS can transmit data over long distances without significant signal loss, making it ideal for industrial and automotive applications.   LVDS Cable Assembly An LVDS cable assembly consists of paired twisted wires, often shielded to minimize interference. The assembly is designed to maintain signal integrity over long distances and in EMI-heavy environments. Components of LVDS Cable Assembly Connectors: Common connector types for LVDS cables include Molex and Hirose connectors. These are reliable and widely used in high-speed data transmission. Cable Length: LVDS is capable of supporting longer cable runs compared to other technologies, but it requires proper shielding to prevent signal degradation. Flexibility and Durability: LVDS cables are often designed to be flexible and durable, especially for dynamic applications such as robotic arms and automotive displays. Common Applications of LVDS LCD Displays: LVDS is frequently used in LCD screens, thanks to its ability to handle high-speed data while keeping power consumption low. Automotive Displays: LVDS is commonly found in automotive applications like infotainment systems and dashboard displays, where long cable runs and noise resistance are required. Industrial Equipment: LVDS is used in various industrial environments where reliability and high-speed data transmission over long distances are critical.   What is eDP? eDP (Embedded DisplayPort) is a digital interface developed by VESA, based on DisplayPort technology, but optimized for internal display connections in devices like laptops and tablets. Introduced as a successor to LVDS for internal displays, eDP offers higher performance and simplified connections. Key Features of eDP Digital Transmission: Unlike the analog signaling of LVDS, eDP uses digital transmission, which reduces the number of required wires and simplifies the cable assembly. Higher Bandwidth: eDP supports much higher data rates than LVDS, making it ideal for high-resolution displays (4K, 8K) and high-refresh-rate monitors. Power Efficiency: eDP includes features like Panel Self-Refresh (PSR), which allows the display to refresh itself without constant GPU interaction, reducing power consumption dramatically. Reduced Pin Count: eDP uses fewer wires compared to LVDS, which simplifies the cable assembly and reduces overall system cost. Integrated Audio and Video Transmission: eDP can transmit both audio and video signals over the same connection, further reducing the complexity of the system. eDP Cable Assembly The eDP cable assembly is simpler than its LVDS counterpart, thanks to a reduced pin count and fewer wires. However, it still requires careful design to ensure optimal performance, particularly in high-speed, high-resolution applications. Components of eDP Cable Assembly Connectors: eDP connectors are often smaller and more compact than LVDS connectors. Common types include FPC (Flexible Printed Circuit) connectors, which save space and are reliable for high-frequency applications. Cable Length: eDP is generally used for shorter cable lengths, as it is designed for internal connections in devices like laptops, where the display is close to the motherboard. Shielding: While eDP is less prone to interference than LVDS due to its digital nature, proper shielding is still important, especially in environments with high EMI. Common Applications of eDP Laptops and Tablets: eDP is widely used in modern laptops and tablets due to its power efficiency, reduced complexity, and support for high-resolution displays. High-Resolution Monitors: eDP is found in 4K and 8K monitors where high

New problem points Some of the main reasons for vehicle downtime and repairs are related to wiring harness. Despite technological advances, environmental stability remains an ongoing challenge. It’s worth mentioning that fully functional anti-lock braking systems (ABS) have been around since the 1970s. But most of these systems were forced out of the market due to cabling issues. Decades later, the National Highway Traffic Safety Administration’s federal motor vehicle safety standards are finally mandating ABS on commercial and passenger vehicles because the latest electrical systems finally meet the stringent requirements for such safety. With the ever-increasing functionality of modern automobiles, which may have hundreds of wiring connection points, the integrity of the electrical system becomes critical because any single point of failure could bring down the entire system. In the past, unsealed connectors and electronic control units (ECUs) were common in vehicles, but now most of these components are sealed to prevent moisture intrusion. As the design of these critical electrical system components has advanced, stresses caused primarily by temperature fluctuations and water contamination have shifted potential failure points to the next weak link in the system: hinge points and ring terminals. These parts have long been a concern for corrosion issues, but recent practical experience has shown that as the entire electrical system evolves, they have become the primary focus of improvement and are driving all major car manufacturers to update their electrical standards. Give two examples: The first is the ground connector located on the outside of the chassis harness, which is exposed to moisture. A sealed ECU connected to it is securely installed in the vehicle cab. However, due to temperature changes, the amount of air in the ECU will produce pressure changes, thereby sucking salty moisture into the ECU, causing failure. This “siphon” phenomenon has now been recognized throughout the automotive industry, with some OEMs even jokingly calling sealed ECUs “lung boxes”. In another case, a supposedly sealed joint was exposed to water splash in the engine bay. Due to the capillary action between the copper strands, water continued to enter the entire harness, and eventually the entire harness had to be replaced. This powerful capillary action can be easily reproduced in the laboratory using saline (see Figure 1). room for improvement For years, the wire harness industry has relied solely on adhesive-lined heat shrink tubing to seal connectors and protect eyelet terminals, but with new OEM testing standards in place, wire harness manufacturers are being forced to verify connectors are sealed, exposing problems . Wire harness engineers may mistakenly believe that if the heat shrink tubing hot melt glue flows, the joint will definitely be sealed, but this is not always the case. Although heat shrink tubing is very reliable when applied correctly, in many cases the application process is unproven. Heat shrink is also limited due to the complexity of the hinges and the geometry of the terminals that cannot be sealed with heat shrink adhesive alone. This is especially true as the number of wires terminated to a single splice or ring terminal (the kind with a hole) increases. This forced the industry to start looking for and testing alternative solutions for wire sealing, such as adhesives and butyl rubber, but these solutions proved to have their own problems, including inconsistent and labor-intensive manual application, compatibility of wire insulation problems and environmental degradation. a new approach That’s when a low-viscosity liquid sealant was developed that solved these problems by sealing wires in a whole new way. This is a low viscosity liquid sealant that uses capillary forces to wick between strands and cures quickly to form a durable, semi-flexible barrier that provides a permanently effective sealed joint or terminal for the entire life of the harness. It features a unique automotive-grade formula that provides excellent flex properties over a wide temperature range and is extremely resistant to moisture and chemicals. Once the sealant is in place, water and contaminants are permanently blocked and can no longer wick, preventing most corrosion failures. Because the advanced sealing method works at the strand level, it can provide a seal on most splices, even with heavy wires and substandard construction (lined with heat shrink tubing and butyl rubber may not seal). This allows future wire harness designs to successfully combine more leads into fewer connectors. Sealant can be applied to the terminals using precision dispensing or by immersing the entire joint in a bath. The method will depend on the joint structure and the processes required for fabrication.

High-voltage wiring harness design is a key part of the electrical system of electric vehicles, which is related to the overall safety of vehicles and people. In this article, we will explore the three main aspects of high-voltage wiring harness design: line protection design, high-voltage cable selection, and high-voltage wiring harness wrapping and fixing methods. 1. Line protection design Line protection design is an important part of high-voltage wiring harness design. Its main purpose is to prevent circuit overload and short-circuit faults. In electric vehicles, line protection design usually uses high-voltage fuses as protection measures. High-voltage fuses can quickly and safely disconnect the circuit channel to prevent short-circuit fault current from directly impacting the battery or high-voltage input module. According to the national standard GB/T 18384.2-2001 "Safety Requirements for Electric Vehicles", when the current is too large, a circuit protector, disconnection device or fuse should be used to disconnect the on-board power supply. Therefore, using fuses to protect electric vehicle power batteries is not only a fuse with many advantages, but also an effective measure recognized by international standards, and it is also an indispensable and necessary means clearly stipulated by national standards. 2. High-voltage cable selection High-voltage cable is a key component in high-voltage harness design. It requires special high-voltage automotive cables that withstand high-voltage characteristics, and the safety level is higher than that of low-voltage wires. The structure of high-voltage cable is mainly composed of conductor and sheath. The conductor is made of wound tinned annealed copper, and the insulator adopts 120--200 degrees Celsius level, heat-resistant, halogen-free XLPE. The sheath adopts heat-resistant 105--180 degrees Celsius, Pb-free PVC (or HF-XLPO, TPE-E, PP-FR, ETFE: optional). The wire color identification of high-voltage cables adopts color identification, and the grounding wire or wire core for similar protection purposes in the cable must adopt yellow-green identification marks. The wire color identification of the cable core of the multi-core cable adopts the wire color identification method of the low-voltage wire. 3. High-voltage wire harness wrapping and fixing method The high-voltage wire harness wrapping and fixing method is an important part of the high-voltage wire harness design. The high-voltage harness needs to be effectively protected by the orange corrugated tube on its cable jacket, and the two ends of the harness are sealed with orange tape to prevent oil and water from pouring in and affecting the waterproof performance of the equipment interface. The high-voltage harness cannot be located at the lowest position or the outermost side of the chassis, which may cause the high-voltage harness to wear and cause a high-voltage short circuit. The common method is: a high-voltage harness protection plate is installed on the chassis. The high-voltage harness is generally fixed to the body bolts with special mesh ties. Summary The high-voltage harness design is a key part of the electrical system of electric vehicles, which is related to the overall safety of the vehicle and the person. Line protection design, high-voltage cable selection, and high-voltage harness wrapping and fixing methods are the three main aspects of high-voltage harness design. Line protection design is an important part of high-voltage harness design, and its main purpose is to prevent circuit overload and short-circuit failures. High-voltage cables are selected from special high-voltage automotive cables that need to withstand high-voltage characteristics, and the safety level is higher than that of low-voltage wires. The high-voltage harness wrapping and fixing method needs to be effectively protected by the orange corrugated tube on its cable jacket, and the two ends of the harness are sealed with orange tape to prevent oil and water from pouring in and affecting the waterproof performance of the equipment interface. Through the introduction of this article, we can understand the importance and complexity of high-voltage harness design. High-voltage harness design needs to consider many factors, including line protection design, high-voltage cable selection, and high-voltage harness wrapping and fixing methods. Only through scientific design and strict testing can the safety and reliability of high-voltage harnesses be ensured. Recommendations In the design of high-voltage harnesses, the following measures are recommended: Use high-voltage fuses as a protection measure to prevent circuit overload and short-circuit faults. Select special high-voltage automotive cables that withstand high-voltage characteristics, which have a higher safety level than low-voltage wires. Use orange corrugated tubes and orange tape to wrap and fix high-voltage harnesses to prevent oil and water from pouring in and affecting the waterproof performance of the equipment interface. Strictly test the safety and reliability of high-voltage harnesses to ensure that they meet national standards and industry requirements. By taking these measures, the safety and reliability of high-voltage wiring harnesses can be ensured, providing protection for the safe operation of electric vehicles.

What is USCAR? Automotive wiring harness is an indispensable part of modern automobiles. It carries the functions of electrical signals and power transmission. USCAR (United States Council for Automotive Research) is an organization that formulates and promotes automotive industry standards. This article will explore the importance of the automotive wiring harness standard USCAR and its application areas in the automotive industry. 1. Introduction to USCAR USCAR is a standard jointly drafted by Stellantis, Ford, and General Motors. Its mission is to promote technical cooperation and standardization in the automotive industry to improve the competitiveness and efficiency of the entire industry. USCAR plays an important role in setting standards, one of which is automotive wiring harness standards. 2.USCAR automotive wiring harness standards USCAR has many standards for automotive wiring harnesses. This article briefly popularizes the USCAR standards for wiring harnesses. 1. USCAR 1 SALT SPRAY TESTING AND EVALUATION OF FASTENER FINISHES 2.USCAR 2 Performance Specification for Automotive Electrical Connector Systems 3. USCAR 12 Electrical Connector Design Criteria 4. USCAR 17 PERFORMANCE SPECIFICATION FOR AUTOMOTIVE RF CONNECTOR SYSTEMS 5. USCAR 18 (R) FAKRA SMB RF CONNECTOR SUPPLEMENT 6. USCAR 19 Coaxial Cable Connector Interface – Square Outer Conductor 7.USCAR 20 FIELD CORRELATED LIFE TEST SUPPLEMENT TO SAE/USCAR-2 8. USCAR 23 Road Vehicles-60V And 600V Single Core(ISO/METRIC) Cables-Dimension, Test Methods And Requirements 9. USCAR 21 PERFORMANCE SPECIFICATION FOR CABLE-TO-TERMINAL ELECTRICAL CRIMPS 10. USCAR 25 Electrical Connector Assembly Ergonomic Design Criteria 11. USCAR 26 Test Procedure for Electrical Ground Attachments 12. USCAR 29 Automotive Grade Coaxial Cable Performance Specification 13. USCAR 30 PERFORMANCE SPECIFICATION FOR AUTOMOTIVE UNIVERSAL SERIAL BUS (USB) CONNECTION SYSTEM 14. USCAR 37 High Voltage Connector Performance Supplement to SAE/USCAR-2 15. USCAR 38 Performance Specification for Ultrasonically Welded Wire Terminations 16. USCAR 44 Performance Specification for Automotive Wire Harness Retainer Clips 17. USCAR 45 PERFORMANCE SPECIFICATION FOR WELDED WIRE-TO-WIRE SPLICES

In recent years, EVs have transformed the automotive industry, presenting new challenges and opportunities for wiring harnesses—the car’s nervous system.Compared with traditional fuel vehicles, the wiring harness technology of electric vehicles has unique characteristics and development trends. They are leading the transformation of future travel with their unique advantages. 1. Unique challenges of electric vehicle wiring harnesses: high integration and complexity Electric vehicle wiring harness technology faces challenges that traditional fuel vehicle wiring harnesses do not have. Since the power system, battery management system, electronic control system, etc. of electric vehicles require complex electrical connections, the integration of electric vehicle wiring harnesses is higher and the complexity is also stronger. 1.1 High integration: Electric vehicles rely on high-voltage, high-current wiring harnesses for their power system, while the battery management system and electronic control system necessitate numerous sensors and actuators. Therefore, electric vehicle wiring harnesses must incorporate additional cables and connectors to fulfill intricate electrical connection demands. 1.2 High complexity: EV wiring harnesses connect various electronic devices like motors, batteries, chargers, controllers, and sensors, enabling intricate signal transmission and data exchange among them. Therefore, the design and manufacture of electric vehicle wiring harnesses require higher precision and reliability. 2. Development trend of electric vehicle wiring harnesses: lightweight, high performance, and intelligent In order to meet the unique challenges of electric vehicle wiring harnesses, electric vehicle wiring harness technology is developing in the direction of lightweight, high performance, and intelligence to meet future travel needs. 2.1 Lightweight: Traditionally, copper wire is used as a conductor in EV wiring harnesses, but its weight hinders range improvement. To reduce harness weight, new materials and technologies are emerging, such as: Lightweight materials: Use lightweight materials such as aluminum wire and carbon fiber instead of traditional copper wire to effectively reduce the weight of the wiring harness. Flat design: Change the traditional round cable to a flat design to reduce the space occupied by the wiring harness and reduce the weight. Wiring harness integration: Integrate multiple wiring harnesses together to reduce the number of wiring harnesses and reduce weight. 2.2 High performance: Electric vehicles have higher performance requirements for electric vehicle wiring harnesses, such as: High voltage tolerance: The high voltage system of electric vehicles requires electric vehicle wiring harnesses to withstand higher voltages and ensure safety and reliability. High current carrying capacity: The motor of an electric vehicle needs to be powered by high current, and the electric vehicle wiring harness needs to be able to carry a larger current and ensure stable operation. High anti-interference: The electronic system of an electric vehicle is very sensitive to electromagnetic interference, and the electric vehicle wiring harness needs to have good anti-interference performance to ensure the accuracy of signal transmission. 2.3 Intelligence: With the development of automobile intelligence, electric vehicle wiring harnesses also need to have intelligent functions, such as: Self-diagnosis function: Electric vehicle wiring harnesses can monitor their own status in real time and issue fault warnings in time to improve driving safety. Data interaction function: Electric vehicle wiring harnesses can interact with other vehicle systems to achieve intelligent control and information sharing. Remote control function: Electric vehicle wiring harnesses can manage and maintain vehicles through remote control to improve convenience and safety. 3. Future Outlook of Electric Vehicle Wiring Harness: Connecting a New Chapter of Future Travel The development of electric vehicle wiring harness technology will continue to promote the progress of the electric vehicle industry and bring more possibilities for future travel. 3.1 High integration: In the future, electric vehicle wiring harnesses will be more integrated, integrating multiple functional modules into one wiring harness, simplifying the wiring harness structure, reducing costs and improving efficiency. 3.2 Intelligent upgrade: In the future, electric vehicle wiring harnesses will be more intelligent, able to interact with drivers, and provide personalized services according to different driving scenarios. 3.3 Application of new materials: In the future, electric vehicle wiring harnesses will adopt more new materials, such as superconducting materials, nanomaterials, etc., to further improve the performance and efficiency of wiring harnesses. 3.4 Sustainable development: In the future, electric vehicle wiring harnesses will pay more attention to sustainable development, adopt environmentally friendly materials, improve recycling rates, and reduce environmental impact. 4. Market status and trends of electric vehicle wiring harnesses: 4.1 Market size: The global electric vehicle wiring harness market size continues to expand, and is expected to reach tens of billions of dollars by 2025. With the continued growth of electric vehicle sales, the demand for electric vehicle wiring harnesses will continue to rise. 4.2 Competition: The electric vehicle wiring harness market is highly competitive, and the main players include: Traditional automotive wiring harness suppliers: Traditional automotive wiring harness suppliers are actively expanding the electric vehicle wiring harness market, such as Delphi, Leoni, Aptiv, etc. Emerging wiring harness suppliers: Some emerging wiring harness suppliers focus on the research and development and manufacturing of electric vehicle wiring harnesses, such as Tesla, CATL, etc. Electronic component manufacturers: Some electronic component manufacturers have also begun to get involved in the electric vehicle wiring harness market, such as Bosch, Continental, etc. 4.3 Development trend: The development trend of the electric vehicle wiring harness market is mainly reflected in the following aspects: Lightweight: With the improvement of electric vehicle range, lightweight has become an important development direction for electric vehicle wiring harnesses. High performance: Electric vehicles have higher performance requirements for electric vehicle wiring harnesses, such as high voltage tolerance, high current carrying capacity, etc. Intelligence: With the development of automobile intelligence, electric vehicle wiring harnesses also need to have intelligent functions, such as self-diagnosis function, data interaction function, etc. Personalization: In the future, electric vehicle wiring harnesses will be more personalized and can meet the needs of different models and users. 5. Production management and marketing of electric vehicle wiring harnesses: 5.1 Production management: The production management of electric vehicle wiring harnesses needs to pay great attention to the following aspects: Quality control: The quality of electric vehicle wiring harnesses is crucial, and strict quality control is required during the production process to ensure that the products meet the standards. Supply chain management: EV wiring harness production requires abundant raw materials and parts, necessitating a robust supply chain management system for stability and reliability. Production efficiency: The production of electric vehicle wiring harnesses requires high efficiency, and advanced production technology and management models need to be adopted to reduce production costs and improve production efficiency. 5.2 Marketing: The marketing of electric vehicle wiring harnesses needs to focus on the following aspects: Product differentiation: The electric vehicle wiring harness market is highly competitive, and it is necessary to highlight the differentiated advantages of products, such as lightweight, high performance, and intelligence. Customer relationship maintenance: Electric vehicle wiring harness suppliers need to establish good customer relationships, understand customer needs, and provide high-quality services. Brand building: Electric vehicle wiring harness suppliers need to establish their own brands and enhance brand awareness and influence. 6. Future prospects of electric vehicle wiring harnesses: Electric vehicle wiring harness technology will continue to develop rapidly and bring more possibilities for future travel. In the future, electric vehicle wiring harnesses will develop in the following directions: High integration: In the future, EV wiring harnesses will integrate multiple modules, simplifying their structure, cutting costs, and enhancing efficiency. Intelligent upgrade: In the future, electric vehicle wiring harnesses will be more intelligent, able to interact with drivers, and provide personalized services according to different driving scenarios. New material application: In the future, electric vehicle wiring harnesses will adopt more new materials, such as superconducting materials, nanomaterials, etc., to further improve the performance and efficiency of wiring harnesses. Sustainable development: In the future, EV wiring harnesses will prioritize sustainability, using eco-friendly materials, enhancing recycling rates, and minimizing environmental impact. 7. Conclusion: EV wiring harnesses are vital for electric vehicles, impacting their performance and safety. As the electric vehicle industry rapidly expands, the wiring harness market presents significant development prospects.In the future, electric vehicle wiring harnesses will be more intelligent, lightweight, and high-performance, bringing more possibilities for future travel. Automotive wiring harness:EV vs. ICE: How Does Wire Harness Design Differ?

Designed for board-to-board interconnections in electronic systems, RY Flat Flexible Cables (FFC) are made up of flat tin or gold plated copper conductors insulated with Polyester or Polyimide tapes. From 0.30 mm pitch for space saving to 1.25 mm, a large variety of pitches is available to suit your needs. In addition to the standard range, developed custom designed flat flex cables incorporating folds, shields, notches, punching, slitting, marking or special mounting methods. FFC-Flat Flexible cables are compatible with ZIF and LIF connectors. Advantages Extremely small dimensions: low profile, narrow width, fine pitch. Easy and fast installation: time saving and cost reduction. Compatible with ZIF/LIF connectors. Excellent flexibility and flex life: over 70000000 cycles for the ultra-flexible version (10 mm bend radius). Flat cables with a fine gold coating on the stripped end can be offered to guarantee the absence of tin whiskers. EMI shielding with aluminium tape. Construction RoHS compliant flat conductors: bare copper, tin alloy plated copper, gold plated copper. Insulation: laminated polyester or polyimide tapes. 0.30 mm pitch. 0.50, 1.00, 1.25 mm pitch : 100 micron conductor, 50 and 35 micron conductor versions. Different types of stripping and reinforcement tapes, dependent on the connection type: removable connection (connector/connector), solder connection (solder/solder) or mixed connection (solder/connector). Flat flex cables can be delivered with a standard UL printing or with a special marking. Shielded versions: Axon’ is able to ground one or several conductors to the shield. Custom designed FFC-Flat Flexible cables made with folds, notches, shields, punching, slitting, marking etc. Ordering is easy: just send your own specification or draw it with FFC-Cad designing tool. Applications IT equipment: notebooks, scanners, printers. Consumer electronics: CD and DVD players, hi-fi systems, decoders and satellite receivers. Automotive industry: car radios, GPS systems, switch rotary connectors, headliners, door panels. Telecommunications. Household equipment: cooking plates, refrigerators, dishwashers. Military electronics. Industry: robots, automation systems. Medical displays.

The automotive wiring harness is the main network of the automotive circuit, mainly composed of wires, terminals, plastic parts and coverings. 1. Structure and characteristics of wires The wire consists of a core conductor and an insulation layer. Insulation layer material and its characteristics Insulation materials have the characteristics of insulation, protection, heat resistance and oil resistance. Insulation layer thickness:   ①Thick-walled wire: usually used in areas of the chassis such as wheel speed sensors that require high wear resistance, and the bending radius should also be considered. ②Thin-walled wire: usually used for wires in all areas of the vehicle (excluding the chassis). ③Ultra-thin-walled wire: rarely used at present. Material characteristics of conductors ①Pure copper (annealed): standard conductor material for automotive wires. Hard copper is not recommended and is generally only used on some coaxial cables. ②Copper alloy: generally used in 0.13mm2, in order to increase tensile strength and crimping performance. ③Tin-plated copper: usually used at the Pigtail end. ④Silver-plated copper: usually used in high temperature occasions (200℃+). ⑤Nickel-plated copper: usually used in high temperature areas (O2 sensors) 225℃+. ⑥ Aluminum: Usually used in battery cables to reduce weight and cost, but the conductivity of aluminum conductors is not as good as copper, and it is easy to corrode in the air. Structural characteristics of conductors ① For conductors with a cross-sectional area of ​​0.13mm2 to 2.0mm2, Type A conductors are usually used to facilitate wire stripping and terminal crimping. ② For conductors with a cross-sectional area greater than 2.5mm2, both Type A and Type B are useful. ③ For places with high flexibility requirements, such as door hinges, steering columns, and electrically adjustable seats, Type C is usually used. 2. Determination of wire type The selection of wire type focuses on the environment and function of the Wiring harness. The selection of wire type should be based on platformization. The following are some general industry principles for wire type selection: Since the current carrying capacity of the wire decreases with the increase of ambient temperature, the wire selection should be based on the working environment of the wire harness and the corresponding temperature resistance grade. The wire temperature resistance grade is divided into 8 temperature grades The temperature around the engine is high, and there are many corrosive gases and liquids. Therefore, it is necessary to use high-temperature resistant, oil-resistant, vibration-resistant, and friction-resistant wires; The wires on the automatic transmission must be resistant to high temperatures and hydraulic oils, and their temperature stability must be good; The wires on the luggage compartment cover must maintain their elasticity at low temperatures, so cold elastic wires must be used to ensure their normal operation; Weak signal sensors must use shielded wires, such as knock sensors, crankshaft position sensors, ABS wheel speed sensors, etc.; The wires of frequently opened/closed doors require high bending resistance; The wires crossing the car body require good flexural performance, etc.; High-temperature resistant wires are more needed near the exhaust pipe (try to avoid them when wiring) The wiring harnesses of ABS sensors, brake shoe alarms, etc. are often splashed with mud, water, sand and stones near the wheels, so they must use thicker, wear-resistant rubber materials and better flexibility. The starter wire, generator output wire, battery harness, etc. must withstand large currents, so the insulation layer of the wire is required to have good heat dissipation. Thick-walled wires are usually used in areas of the chassis that require high wear resistance, such as wheel speed sensors, and the bending radius must also be considered. Thin-walled wires are usually used for wires in all areas of the vehicle (excluding the chassis). Ultra-thin-walled wires are rarely used at present.

What is an automotive wiring harness? An automotive wiring harness is the main network of electrical circuits in a car. Without a wiring harness, automotive electrical circuits would not exist. A wiring harness refers to a component that is made by punching contact terminals (connectors) from copper material, and then insulating them with molded insulation or adding an external metal shell, forming a bundled assembly of connected circuits. In simple terms, an automotive wiring harness assembles cables, connectors, terminals, and wires to transmit electrical power within a vehicle. In the past, cars were purely mechanical and could operate without electricity. However, driving a modern car without electricity would be a miracle. Therefore, automotive wiring harnesses are crucial components for any car’s engine. Without them, the current cannot reach the various electrical components of the vehicle. The ignition systems of cars, such as the starter, chassis, and alternator, all require electrical power. Without automotive wiring harnesses to transmit them, they would not receive this power. However, having just an automotive wiring harness is not enough for a car. The wires and terminals must also be correctly connected to the electrical components. Understanding these connections is essential in understanding different wiring harness circuits. Automotive Wiring Harness Circuits Since automotive wiring harnesses connect to different electrical components, they have various wiring circuits.These circuits serve different purposes. A standard conventional automotive circuit consists of eleven: Dashboard illumination lights、Instrument cluster、Turn signals、Heating and air conditioning、Horn、Parking lights、Radio broadcasting、Brake lights、Tail lights、Turn signals、Windshield wipers From their names, you can easily understand the function of each circuit. However, many high-end vehicles’ wiring harnesses have more than 12 circuits. Some have 18, while others have 24. These additional circuits are important because the vehicles are equipped with more electrical components. If a car has 18 circuits, you would find the following as additional circuits: Electric fuel pump Electric fan High-mount stop lamp Two power locks Radio B+ memory But if a car has 24 circuits, in addition to the 18 mentioned above, the following are extra circuits: Dome light Trunk light Glove box light Clock Engine compartment light Components of an automotive wiring harness In addition to circuits, an automotive wiring harness consists of various components, including: Connectors Connectors, as the name suggests, are used to connect the wiring harness wires to different circuits and power sources. Typical connectors have male and female terminals that are connected together to transmit electrical current. However, the type of connectors varies depending on the wiring harness. Their terminals also come in different materials, with brass and copper being the preferred options. Fuses Fuses, in general, serve to protect electrical components in case of faults, such as when there is excessive current flow. Wiring harness fuses are characterized by wires that are designed to easily melt at a certain current level. When they melt, the circuit is broken. Thus, they can prevent random currents from reaching the vehicle’s electrical components, protecting them. Fuse box Each circuit in a wiring harness has an individual fuse. This means that if one fuse fails, it doesn’t affect all the components. The fuse box is like a house where you can assemble different fuses. It is similar to a distribution board. Relays Relay components in an automotive wiring harness are used for high-current circuits. It is one of the essential components that directly draws power from the battery. In contrast, some components derive power from other automotive system components. Therefore, relay components can transmit powerful currents from low-current sources. Wires The harness is composed of cables or wires. Cables or wires are the components seen here. These are typically copper wires with variations in circuit measurements. For example, the horn and headlight circuits use 1.5mm² wires. However, the circuits for dome lights and door lights use 0.5mm² wire. When purchasing wires for circuits, confirming the circuit’s current value is crucial.

RF coaxial connector, or RF connector, is a small electronic component installed on a cable or instrument. Its main function is to act as a bridge in the process of electrical connection or separation. Discussion on the development trend of RF coaxial connector As far as the current development situation is concerned, RF coaxial connectors mainly have the following main development directions: miniaturization, high frequency, low electromagnetic loss and leakage, and high power. 1. Miniaturization The miniaturization of the whole system has gradually reduced the size of the RF coaxial connector, and the main representative is the SMP series RF coaxial connector. The miniaturized product of the SMP series is the SMPM series RF coaxial connector. This connector has the characteristics of small size and light weight, and its volume is only 70% of the general SMP series. And the maximum operating frequency can reach 65 GHz, which has been widely used in military and civilian fields. SMP and SMPM series connectors are attracting more attention in more fields In the civilian field, microwave communications and high-precision measurement have a high demand for micro connectors In the military field, due to its high installation density and high frequency of use, SMPM series connectors have gradually been used And in the highly concerned 5G technology field, SMPM connectors also have very good application prospects. 2. Low electromagnetic leakage The leakage of electromagnetic waves is an inevitable phenomenon when electronic equipment is running. These electromagnetic waves contain certain working information, and if these electromagnetic waves can be captured with the help of capture equipment, information leakage will be caused, which poses a great threat to technology and production safety In addition, electromagnetic leakage will also have a negative impact on the internal electrical components of electronic equipment. Therefore, electromagnetic leakage during equipment operation must be reduced as much as possible, and RF coaxial connectors are the key components for shielding electromagnetic waves. 3. High power The power of the connector is related to both the hardware structure of the connector, such as size, and external factors such as the operating environment and frequency of use of the connector. In the development process of RF coaxial connectors, it is important to establish the power mathematical model of the connector. The power mathematical model of the connector is related to the type of connector, and is also directly related to the operating temperature and operating pressure of the connector. When establishing it, it is necessary to fully consider various factors and not be limited by the model factor. At the same time, multiple derating curves such as power-temperature and power-connector electrical performance are established. 4. Diversification of functions Signal processing will become the main function of RF coaxial connectors. Signal processing functions include filtering, phase modulation, mixing, attenuation, detection, limiting, etc., which will be widely used in the future. learn more：RF COAXIAL CABLES

Applicable scenarios for Flexible flat cable Flexible flat cable are suitable for mobile electrical power transmission lines and control, lighting, communication channels such as lifting equipment, cable tracks, trolleys, transmission machinery.Connection and installation of moving mechanical parts, etc. Compared with round cables： flat cables have the advantages of saving installation space and cost, and when the number of core wires is the same, their bending radius is smaller than that of round cables.   Flat cable performance: 1. The conductive core of the flat cable adopts a soft structure to ensure that the flat cable has good softness and performance. The insulation and protective layer materials are made of butylene polymer to improve the softness, anti-corrosion and cold resistance of the flat cable. The insulated cores are color-coded to facilitate the laying and installation of flat cables. According to customer needs, steel wire ropes or other load-bearing components can be added to both sides of the flat cable core. At the same time, the coaxial cable can also be made into an elevator flat cable for communication. 2. Flexible flat cable is a kind of flat cable that is wrapped with multiple strands of copper wire stranded conductors with insulating materials and pressed with sheath materials through high-tech automated equipment production lines. Advantages of flat cables： It has the characteristics of softness, free bending and folding, relatively thin thickness, It has the advantages of small size, simple connection and easy disassembly. The number and spacing of wires can be selected arbitrarily, making wiring more convenient, greatly reducing the volume of the product, reducing production costs, and improving production efficiency. Flat cable suitable： It is suitable for use as data transmission cables or power transmission in electrical equipment.  

What is the Automotive wiring harness? Cars are large, with an average length of about 4 meters. Despite this, a car is assembled from more than 10,000 independent parts that cannot be disassembled, and most of these parts are small. The wiring harness in a car is responsible for many functions in the car, such as airbags, ABS brakes, signal lights, and engines. Without the wiring harness, these functions would not be possible. Therefore, we should fully understand the role of the car wiring harness. Next, we will explain the role and importance of the car wiring harness. What is an automotive wiring harness? The automotive wiring harness is the network body of the automotive circuit. Without the wiring harness, there would be no automotive circuit. The wiring harness refers to the contact terminal (connector) made of copper material, which is crimped with the wire and cable, and then the insulator is plastic-pressed or the metal shell is added to form a component that connects the circuit. Simply put, the automotive wiring harness assembles cables, connectors, terminals and wires to transmit electricity in the car. In the past, cars were purely mechanical and could run without electricity. However, driving a modern car without electricity would be a miracle. Therefore, the automotive wiring harness is a key component of any car engine. Without them, the current cannot reach the different electrical components of the car. The ignition system of the car, such as the starter, chassis and alternator, all require electricity. Without the automotive wiring harness to transmit them, they cannot get this electricity. But for the car, it is not enough to just have an automotive wiring harness. The wires and terminals must also be properly connected to the electrical components. Understanding this connection is to understand the different wiring harness circuits. Automobile wiring harness circuit Since car wiring harnesses connect to different electrical components, they have different connection circuits. These circuits have different uses. A standard car circuit has 12. Circuits include: Dashboard lights Instruments Signal lights Heating and air conditioning Horn Parking lights Radio Brake lights Tail lights Turn signals Wipers From their names, you can easily understand the function of each circuit. However, many high-end vehicles have wiring harnesses with more than 12 circuits. Some have 18, and some have 24. These extra circuits are important because the vehicle is equipped with more electrical components. If a car has 18 circuits, you will find the following as extra circuits: Electric fuel pump Electric fan High-mounted parking lights Two power locks Radio B+ memory But if the car has 24 circuits, in addition to the 18, these are the extra circuits: Dome light Trunk light Glove box light Clock Under hood light What are the advantages of automotive wiring harnesses? Having an automotive wiring harness in your car is always better than not having one. Here are some of the benefits they bring: Less occurrence of short circuits: With automotive wiring harnesses, there is less chance of short circuits in the circuits. Why? Because the wiring harness assembles multiple wires into well-arranged bundles. These bundles are not flexible but not loose. Quick setup: Installing a wiring harness can take a long time with many wires and circuits to be connected. However, with automotive wiring harnesses, there is only one unit to connect and all the wires will work. In addition to simplifying the setup, you can also avoid making wrong connections. Better fuel usage: Installing an automotive wiring harness will ensure that the car optimizes fuel usage. In the long run, you can save money on gas. More durable: Cars often need to endure harsh environments. There are only rare examples such as cold winter weather, downpours, and heat waves. In such conditions, automotive wiring harnesses still function. These harnesses are made of sturdy materials that do not break easily. Automotive Wiring Harnesses：Car Harness Wires: Different Types, Functions, and FAQs

The RF coaxial connector is an electrical connector that is designed to work at a radio frequency within the range of Miaze. The RF connector is usually used with coaxial cables, and is designed to keep the shielding provided by coaxial design. Better models can also minimize changes in transmission line impedance at the connection. The following explains the definition and characteristics of the RF radio frequency coaxial coaxial connector!   1. The characteristics of RF radio frequency coaxial connector   1. There are many specifications: more than 20 international series, more varieties specifications.   2. Parts processing is mainly the processing of driving machines. There are many handicrafts, which is difficult to perform automated assembly.   3. Relying on the mechanical structure to ensure electrical characteristics, it is an integrated product of electromechanical, which is essentially different from other low -frequency connectors.   4. Product reliability, failure mode and failure mechanism are complicated.   5. Product update time is slow.     2. Definition of RF coaxial connector The radio frequency connector is defined as: a separate component that is usually installed on a cable or device for the electrical connection of the transmission system. It can be seen from this definition that it has the common characteristics of the "separated element" connection.     Third, the selection of the RF connector   1. The selected RF connector should meet the frequency range of actual use.   2. The selected RF connector should have a small resident wave ratio.   3. When there are IM requirements, consider the material and coating of the RF connector.   4. The selected RF connector should match the impedance of the RF connector or cable that is connected.   5. The EMC of the thread RF connector is better than any bayonet, push -pull RF connector.   6. The selected RF connector should have a small insertion loss.   7. Under normal circumstances, the electrical properties of the direct RF connector are better than curved, and it can be selected according to the actual usage.   8. When the general RF connector meets the requirements, the high -performance RF connector is not selected.   Some connectors can be used for radio frequency coaxial cables, printed lineboards, frame drawer -type function components and its connection interface. However, you must be familiar with the performance of the selected products before use, and strictly use it in accordance with the prescribed conditions, because the use of overloading is likely to cause the coaxial connector failure, and it is necessary to pay special attention when installing the cable connector. The assembly instructions and correctly use the appropriate installation tool to operate.

How to control the quality of the harness? 2023 With the global manufacturing field of new products, new technologies, new applications will be concentrated appearance, new energy vehicle industry ushered in vigorous development, as a wiring harness manufacturing supplier for more than 10 years, how we and domestic new energy vehicle BYD, Xiapeng, NiO and other car companies to carry out cooperation, so as to achieve an annual output value of more than 20 million sales, and continue to grow. The company's products have passed multiple rounds of quality testing, life testing and effect testing, and have stood out among many competitors and successfully won the affirmation of major car companies. We control product quality through the following aspects of practice, so as to win trust Harness quality control - entry point In order to achieve quality control, it is necessary to start with the process flow contained in the pipeline operation instructions. To wit: A, incoming material - automatic cutting line (KS tangent line)- manual crimping (VK installation EAD, large terminal, sleeve, etc.)- other auxiliary steps. Select the next step based on the module functions B, MoudleAssemble, or directly assembly line. C, after the completion of the pipeline operation, that is, a complete harness processing is completed, the next is the quality inspection: power detection, appearance detection, size detection. D. After all tests are qualified, the KZ-label required by customers will be affixed, and the products will be stored or shipped directly The complete process is divided into four ABCD sections here to better introduce and understand the significance of quality control at different stages. And quality management is not only a simple quality inspection, such as the C&D stage, the finished product after the start of quality testing, in fact, the real quality has started long before Harness quality control-Key points and methods Next, we will gradually discuss how to achieve quality control, the key points and methods of control A: Incoming material - automatic cutting line (KS tangent line) - manual crimping (VK installation EAD, large terminal, sleeve, etc.) - other auxiliary steps. The incoming materials are generally purchased parts, such as: terminals, junction boxes (jackets), rubber plugs, EAD/seal, blind plugs (collectively referred to as waterproof seals), etc. Because it is purchased, the acceptance of quality is exclusively responsible for the supplier management department, and there is no more research on the quality control link here.   Automatic cutting wire harness industry cutting wire as the name suggests, cut, cut. In the beginning, cutting was by hand, hand sewing, and now mainly by equipment. Focus on the automatic cutting line quality control link need to pay attention to the problem points, automatic cutting line will involve several important parameters provided by the R & D department: single line length, single line stripping insulation length: line diameter, line monochrome or two-color color; Terminal, terminal diameter, terminal crimping force.   When doing quality control, we must first check the correctness of the wire diameter, the monochromatic or two-color color of the wire, the terminal, the terminal diameter and the corresponding material number of other parts. In particular, ensure that the terminals and cables are correctly matched. This is the premise of ensuring quality, and then for the length of a single line, the length of a single line stripping insulation, the strength of the terminal crimping, the matching degree of crimping these parameters are for the equipment, that is, the automatic shear machine, for this piece of equipment needs to be debugging.   After debugging the equipment, several processing lines can be tested through trial production, and the above parameters can be proofread to ensure. Manual crimping, crimping is crimping the terminal, manual crimping is a little big terminal, or a single line terminal with a sleeve, automatic crimping can not be. The quality control for crimping terminals that still need to be manually operated in the manual area should be centered around the quality of crimping between terminals, to ensure that: the line peeling area can not be exposed to the outside, and should be completely covered by the terminal end (the length of A+B); The crimping depth of the terminal should be appropriate, not too light or too tight, which will cause damage to the wire core, and it is not easy to repair and other operations when inserting the terminal box at the end (depth of area B). According to different module functions, proceed to the next step to select BMoudleAssemble, or directly carry out assembly line assembly.   At this stage, the focus of quality control is the operation of the previously completed semi-finished product with the junction box. Can take "one push, two listen, th

IDC terminal stability depends on factors such as the spring characteristics of the terminal head and the load capacity of the wire. From a design perspective, IDC terminals are easier to control. And the elimination of external resilience prevents the movement of the cable terminal interface. For solid welding wire, through proper stress relief, this is because of the higher inherent mechanical stability, the performance will be better than IDC end crimping. This is because the terminal deflection energy is stored in the elastically maintained high-voltage interface. Generally, for smaller wires, the terminal is designed to provide a few pounds of force and a few mils of elastic deflection at the interface.   For larger wires, the force can be as high as 15 to 20 pounds. Crimping works well in this field because it will produce metal contacts during the crimping process, and due to axial compression, a small amount of stored elastic energy of the wire. With the passage of time in society, if the crimping joint maintains a mechanically stable development state, additional diffusion welding technology can pass through the interface. However, the stress relaxation and creep of the terminal/wire system tends to decrease the stability of the construction machinery structure. Therefore, depending on the design of the mechanical system, the subsequent process may affect and ultimately lead to a decrease in work performance. Due to vibration and/or reduced stress relaxation edge strength, equipment lifespan due to mechanical instability is reduced. Regarding the stranded wire, the mechanical system stability of the stranded wire harness plays an important role in the performance, and there are two factors that affect the performance. First, because the stranded wire is under compressive load, due to mechanical interference, stress relaxation and creep, when the wire bundle is in the relaxation time slot, it tends to reduce the contact force. The degree of potential relaxation mainly depends on the type of stranded wire used by the enterprise. The number and stranding of the strands, the top coating of the conductor and the type of insulation play an important role in mechanical stability. At the same time, the cables that are easiest to cover usually perform better than solid wires. Second, the number of wires between the electrical conductivity of the wire contact is limited, and therefore the overall electrical conductivity is affected. If the wires are tinned, the latter can be optimized. In the case of multi-stranded wires, it is obvious that a well-designed strain relief device is important. Sometimes, additional IDC slots can provide the necessary mechanical stability.

   There are many categories of antennas, which can be categorized according to the nature of work, purpose, antenna characteristics, current distribution on the antenna, use of bands, antenna shape, different materials, and use of frequency. According to the frequency classification, there are 2/3/4/5G/Wi-Fi/Bluetooth/GNSS/ROLA/RFID antennas and so on. GWT's "module + antenna" full-stack solution speeds up the efficient deployment of IoT terminals. In the 5G era of Internet of Everything, IoT eco-connectivity tends to move towards high-rate, low-latency, and large-bandwidth wireless communication, and puts forward new demands for ubiquitous wireless coverage. Among them, antenna is one of the key components to realize ubiquitous wireless coverage and accurate information sensing, and it is an indispensable solution to empower IoT applications and create a smart environment. By setting up a professional antenna R&D team, GWT provides global customers with more complete full-stack IoT wireless communication solutions, unleashing the "wireless" potential of IoT applications. GWT's antenna team has a wealth of multi-type antenna R&D capabilities, RF review capabilities and antenna structure design capabilities, which can quickly help customers to solve antenna pain points and problems, and significantly reduce the development workload. Many R&D engineers have more than 10 years of antenna R&D experience, which can help customers effectively solve the RF technology, EMC analysis and troubleshooting of the whole series of antenna products and assist in the certification and other problems. Meanwhile, GWT is equipped with advanced equipments, including 48-probe darkroom for testing 400MHz-8GHz IoT devices, far-field/near-field test system, reverberation test system, 5G MIMO throughput test system and other high-tech test platforms in the microwave laboratory, which can realize high-level antenna design and performance testing.

According to the latest "2020 China 5G Economic Report", the total investment in the domestic 5G network in 2020-2025 is 0.9~1.5 trillion yuan, a considerable part of which lies in the investment in base stations. Then the base station as an important component of 5G investment, a 5G base station in the end how much is it worth? And what are the components of its cost? How much does it cost to build a 5G base station Base station is most directly divided into macro base station and micro base station, macro base station is the most important part of the 5G base station, the scale of the investment are relatively large, micro base station is relatively low cost, but also relatively simple, here will be ignored for the time being. 5G macro base station in general is composed of: - the main equipment BBU, AAU, transmission equipment; - power supporting equipment and facilities including power supply, battery, air conditioning, monitoring and control. -Civil construction includes machine room, materials, and labor. First look at the main equipment: because our operators are state-owned enterprises, demand, there is an official background, in the main equipment procurement or relative advantage, in the relevant units to understand the information, 1 BBU + 3 AAU probably cost about 20 ~ 25 million. There are also baseband boards, main control boards, power supply modules, etc. - Baseband boards are more expensive, about 1 to 20,000; - Main control boards and power supplies are relatively much cheaper, about 3,000 to 6,000 yuan; - Antennas here are also about 6,000. Then look at the power supporting equipment: according to different base station configurations, the number and specifications of the required power supporting equipment are also very different. -An outdoor cabinet, about 5,000 yuan / one. -Power cabinet is also generally 5,000 ~ 10,000 yuan; -Additionally there are batteries, is to prevent power outages for emergency use, under the premise of power to ensure stability can be considered to be exempted; -Air conditioning, burglary, wire channel, wire rack ...... total set of calculations down to the superior value of 40,000 ~ 60,000 yuan. Finally is the civil construction, this algorithm is relatively complex, due to the different types of towers, different areas of the site use different ways to invest in different funds, here first according to the mainstream three-tube tower to budget. -An ordinary three-tube tower, weighing about 8.5 tons, the cost of about 90,000 yuan. -The site, mainly self-built, rent-free kind; -Added to the whole labor costs; discount the cost of this piece of a total of about 10 to 15 million. To summarize, it costs about 450,000 dollars to build a complete 5G base station! Basically is currently the same level of 4G base station 4 times, this does not include the base station later maintenance consumption costs, such as its electricity and is a huge expenditure; due to the 5G is microwave millimeter wave, so the number of base stations required more than the number of 4G, the good thing is that at present the national grid to join to the construction of the 5G, its strong financial strength to increase the laying of the 5G basis of the capital, so that" As long as money can solve the problem is not a problem!"

5G a base station can cover a maximum area of 10,000 square kilometers, in fact, it is the maximum coverage distance of 2/3/4G single base station, are 100 kilometers, then you know how many meters a 5G base station a point a 5G base station to cover how much range? First, 5G base station how many meters a point   5G a base station can cover a maximum area of 10,000 square kilometers, in fact, it is 2/3/4G single base station maximum coverage distance, are 100 kilometers.   Calculating the coverage distance of a base station, the geographical conditions that need to be considered, here may be the main model is divided into dense urban areas, general urban areas, suburban areas, rural areas and other four more major models.   The issues to be considered are also capacity requirements, as well as edge rate requirements (including upstream and downstream rate requirements), and in the case of 5G, since it is TDD, it also involves upstream and downstream ratios.   At present, 5G base station is mainly laid in urban areas, urban areas with large network demand, about 0.5 kilometers a, suburban about 1.5 kilometers a, some in rural areas, the density of the base station is about five kilometers or so, a big city in the first tier, then about 200 meters to be installed, can be seen in the laying of the 5G base station project is still very large, the difficulty is also very large.   Second, a 5G base station covers how much range   5G base station coverage is about 250 meters, and a 4G base station coverage is about one kilometer, so that calculation, a 4G base station coverage needs about 4 5G base station to cover. So far, we have built 4.4 million 4G base stations, which is more than the total number of 4G base stations in all countries. If the coverage area of these base stations is covered by 5G base stations, then the number of 5G base stations required to fully build a 5G network reaches 17.6 million.

The actual project maintenance and repair, for maintenance personnel are most afraid of nothing more than encountering a break in the wire and cable can not find the breakpoint in what place. Although the actual maintenance of our weak power project, encountered cable problems will directly find ways to change the line or re-laying, but today we discuss what methods can be measured technically cable breakpoints! When the cable internal media breakage fault, in the case of its external package with insulation skin is not visible in the exact location, including strong power weak power are so, usually looking for breakpoints is the idea of segmentation. For example, a cable in the middle of a place can not be, respectively, from the two ends and the middle of the three points of measurement, which side is not accessible and then take the center point of the measurement, so that the range is narrowed down by inspection to quickly find the location of the breakpoints. So usually, what are the measurement methods to accurately measure the break point of the wire and cable?   1, multimeter detection method: First of all, the whole cable is not connected to the strong end of the cable on the firewire, the other end of the empty. The multimeter dialed to AC2V file, from the cable connected to the beginning of the end, while pinching the tip of the black pen, while the red pen along the insulating skin of the wire slowly moving, the display shows the voltage value of about 0.445V or so. When the red pen moved to a certain place, the display of the voltage suddenly dropped to 0.0 volts, about one-tenth of the original voltage, from the position forward (firewire access) of about 15cm is where the breakpoint. 2, inductive pen test method Induction test pen, that is, with an electronic screen, you can detect the voltage and through the equipment. First exclude the breakpoint cable around the cable has a power supply, and then there will be a breakpoint in the cable connected to the firewire, the pen perpendicular to the wire, hold down the "inductive breakpoint test" button in the wire forward and move slowly, such as the test pen to detect the sudden disappearance of AC signals, you can judge the breakpoint in the test point, the error is up to no more than 10cm. It should be noted that: the breakpoint wire around the cable can not be with power. Another reminder is that this method is not foolproof, short cable effect is obvious, the longer the cable the worse the effect.   3, the use of audio detector Audio detector is a use of single-frequency or multi-frequency signals, can test the continuity of the line to identify line faults in the instrument. Can be connected to any switch, router, PC terminal in the case of direct line finding. When tracing the cable line, no need to peel off the outer skin of the line, simple, fast, and can identify the location of the line break point. 4、Cable fault tester It is a comprehensive set of cable fault detection instruments. It can test the high resistance flashover fault of cable, high and low resistance grounding, short circuit and cable breakage, poor contact and other faults, if equipped with acoustic legal point instrument, it can accurately determine the precise location of the fault point. Especially suitable for testing various types of power cables and communication cables of different voltage levels. 5, folding line detection method Connect one end of the wire with a break point to the black pen of the multimeter, and the other end to the red pen. Multimeter playing in the resistance 200Ω file. In the most likely place to break the line (such as frequent bending points) back and forth bending. If the multimeter shows that the fluctuation of the time, this is the break point. Still can not judge, it is necessary to start bending from one end of the cable, until you find the breaking point. This method is suitable for shorter cables.   6, needle detection method This method belongs to the damage detection method, in the broken cable segments inserted into the steel needle, with a multimeter to measure the steel needle to the end of the cable through the cable to determine the breakpoint of the cable. It is not recommended under normal circumstances, because it will damage the insulation layer, and it is easy to cause other problems in the later use of the cable, especially in the environment of high humidity. This method is the use of cable pass-through to identify where the breakpoint of the cable.   7, pulling the wire detection method This also belongs to the damage detection method, generally not used in practice, but also a method listed together, using a vise to pull the cable end of the broken line, such as the breakpoint near the end of the cable, it is easy to pull the insulation skin. This method is used for the broken point in the vicinity of the cable end of the cable.   To measure the break point of the wire and cable, you can refer to the several methods introduced today, we are in the conditions, or with the help of instruments and equipment to improve efficiency is better.

1. Mainly for the operation of the sensor harness, the main harness must not be cut and re-wired 2. When the wire harness is too short and needs to be re-wired, the cut wire harness must not be cut evenly. The difference between the two wire harness connectors should be about 30mm. The conductor should not be broken when crimping, and the cross-section of the contact should meet the quality requirements. After wiring, wrap with insulating tape. It is required that the insulating tape is wrapped completely, the thickness of the tape wrapped is appropriate, safe, reliable and beautiful. 3. When the connectors cannot be plugged together and the terminals need to be crimped again, the terminals should be pressed tightly on the conductor and the insulating layer respectively, the conductor should not be broken, and the insulating layer should not be pressed into the crimping part of the conductor. After crimping Wire conductors must not interfere with insertion. The cross-section of the crimping terminal and wire crimping place should meet the quality requirements. The connection between the terminal and the wire should be firm, and should not be damaged or disengaged under the specified tension, and the tension value should be less than the regulations in Attached Table 1. 4. When wiring, the diameter and color of the selected wire and the butt wire should be uniform. If it cannot be agreed under special circumstances, it must be ensured that the same type of vehicle must be connected at the same position.

Automotive wiring harness is like the car's "nervous system", it can be said that if there is no automotive wiring harness, the car will not be able to play its maximum performance, not to mention the coordination and control of the car's internal system normal operation. The wiring harness we are talking about is a set of copper material stamped contact clips and cable crimps, and then outside the set of other metal materials, plastic sheaths or compression insulators and so on. So, for the various wiring harnesses in the car, how to determine whether there are short circuits, poor contact and other conditions, quality control and fault detection of the relevant electrical properties of the wiring harness? Today, I would like to share with you some simple and easy testing methods. 1. Automotive wiring harness tension test If the automotive wiring harness quality problems, first, the connection between the harness transmission line and the terminal is not strong enough, the harness collapse; second, the external surface of the harness transmission line is intact, but the internal copper core and the terminal is separated, which will also lead to automotive wiring harness failure, so the automotive wiring harness tensile strength test is very necessary. During the test, as the insulation layer of the transmission line cable becomes progressively thinner, it is possible to determine whether the transmission line is damaged or not; if the internal wiring is damaged, X-ray imaging is required to more accurately assess the internal condition. 2, automotive wiring harness X-ray inspection Automotive wiring harness X-ray inspection images can be more intuitive to observe the wiring harness internal welding process defects, such as leakage of solder, slag and so on. These defects can directly lead to a short circuit of the harness, jeopardizing the safety of the overall performance of the car. 3, automotive wiring harness touch test In general, when the wiring harness contact is poor, it is likely to be caused by the connector. After the connector is connected, the electrical equipment suddenly works normally or abnormally, indicating that the connector is faulty and needs to be overhauled.

With the popularization of digital TV, the reception quality of TV signals has also become a focus of attention. In the city, due to the tall buildings, signal interference and other reasons, many people often encounter unstable signal, blurred picture quality and other problems when watching TV at home. And indoor antenna becomes one of the effective ways to solve these problems. In this article, we will introduce how to improve TV signal reception by using an indoor antenna. First, choose the right indoor antenna Choosing the right indoor antenna is the first step to improve TV signal reception. When choosing an indoor antenna, you need to consider the following factors: 1. TV signal strength: If the TV signal strength near your home is weak, then you need to choose an indoor antenna with high reception sensitivity. 2. TV signal source: If the TV signal source near your home is more scattered, then you need to choose a wide range of reception indoor antenna. 3. TV signal band: different TV signal bands require different antennas, so when choosing an indoor antenna, you need to confirm that you need to receive the TV signal band. Second, the installation position of indoor antenna Installation location is also an important factor affecting the reception of TV signals. Generally speaking, the indoor antenna should be placed in a place far away from the TV, to avoid TV interference with the antenna. At the same time, you also need to avoid interference between the antenna and electrical equipment, metal objects and so on. If the source of TV signals in your home is scattered, you can try to place the antenna in a higher position, such as a window. Third, the adjustment of the indoor antenna After installing the indoor antenna, you also need to make some adjustments to achieve the best TV signal reception. Specific adjustment methods are as follows: 1. Direction adjustment: According to the direction of the TV signal source, adjust the antenna's orientation to get the best signal reception. 2. Height Adjustment: If the TV signal source near your home is far away, try to place the antenna in a higher position, such as a window. 3. Signal booster: If the TV signal strength near your home is weak, you can consider using a signal booster to improve signal reception. Indoor antenna maintenance After installing a good indoor antenna, you also need to carry out some maintenance work to ensure its long-term stable working condition. Specific maintenance methods are as follows: 1. Regular cleaning: clean the surface of the antenna regularly to avoid dust, dirt and other effects on signal reception. 2. Regular inspection: regularly check whether the wiring of the antenna is loose, and whether the antenna is damaged, etc., and repair or replace it in time.

    "The Birth of Photovoltaics In 1839, A.E. Becquerel, a 19-year-old French scientist, slowly inserted two platinum electrodes into an acidic solution of silver chloride in his father's laboratory. Unbeknownst to him, the door to the world of photovoltaics was slowly opening with this "wrong" experiment. Measuring the current flowing between these electrodes, he found that the current in the light was slightly higher than the current in the dark; he named this phenomenon the photovoltaic effect. What he did not anticipate was that the small photocurrent he observed in this experiment would bring about a major change in human energy use a century later. In honor of his discovery, the photovoltaic effect is also known as the "Becquerel effect".   After Becquerel's experiments had been dormant for 37 years, British scientist William Grills Adams and his student Richard Evans Day discovered that selenium produces electricity when exposed to light. Although selenium could not provide the electrical energy needed for the electronic components in use at the time, this proved that solid metals could directly convert light into electricity.   In 1883, the American scientist Charles Fritz plated a layer of selenium metal electrode on germanium sheet to establish the first photovoltaic cell. Although it had a conversion efficiency of only 1% and was extremely costly, Fritz was ambitious: "It outputs electricity continuously and steadily, not only in daylight, but also by using scattered light and even dim light...We may soon see photovoltaic panels competing with [coal-fired power plants]! " Unfortunately, his prediction did not come true. He had sent a photovoltaic cell to Siemens, then on par with Edison, who praised his invention. Siemens believed that photovoltaic technology had far-reaching significance in science, and Maxwell, the physics bull of the time, also agreed, as he had made the famous "Maxwell's system of equations" famous in physics. Since then, many scientists have begun to conduct basic research on the photoelectric effect. However, whether it is Siemens or Maxwell, have not been able to crack the secret behind the photovoltaic.   After 24 years of this mystery, a breakthrough was finally achieved by another giant of physics, Albert Einstein, who in 1907 provided a theoretical explanation of the photoelectric effect based on his 1905 quantum hypothesis of the photon. For this, he was awarded the Nobel Prize for Physics in 1921. between 1912 and 1916, the American experimental physicist Robert Andrews Milliken confirmed Einstein's conjecture on the photoelectric effect through experiments and was awarded the Nobel Prize for Physics in 1923. With the solid support of theory, the development of photovoltaics began to enter the fast lane.   In 1916, Polish chemist Jan Czeklarski discovered the crystal-pulling process for purifying monocrystalline silicon, and named it the Czeklarski Method after him. This technology did not begin to be practically applied to the manufacture of wafers in the semiconductor manufacturing industry until the 1950s, and with the increasing demand for large-scale semiconductor devices, this process is constantly evolving.   The wheel of history moved forward almost 20 more years when, in 1934, scientists began research on thin-film solar cells and envisioned creating energy self-sufficient systems through solar cells. Experimental data showed that power generation efficiency could be improved by doping the material with metal impurities.   In 1940, U.S. semiconductor expert Russell Orr created the basic structure of the solid-state diode p-n junction, which laid a solid foundation for the invention and manufacture of solar cells, greatly advancing photovoltaic power generation to the industrial field.   In 1953, the American physicist Daryl Chapin, Gerald Pearson and chemist Calvin Sauser Fowler manufactured crystalline silicon solar cells, each about 2 centimeters in size, with a production efficiency of about 4%. Since then, solar cells have gradually made their way into industry. Into industry   On March 17, 1958, the second U.S. artificial satellite used chemical and photovoltaic cells, through the launcher into space. This small satellite laid the foundation for the use of solar cells, which have been gradually developed for space exploration ever since. The value of the extended spacecraft life achieved through batteries far outweighs the high cost of solar cell manufacturing. In addition, solar cells have become cheaper and less risky than radioisotope generators. Today, most spacecraft are equipped with solar cells, and about 1,000 satellites in the world are using photovoltaics to generate electricity. In space, solar cells achieve an output of 220 watts per square meter.   In 1976, the Australian government decided to operate the entire telecommunications network in the outback through photovoltaic cell stations. The establishment and operation of photovoltaic power stations was so successful that it raised confidence in solar technology worldwide.   Since 1980, small unmanned oil drilling platforms in the Gulf of Mexico have been equipped with solar modules and have gradually replaced the large batteries previously used with the advantages of economy and practicality.   Since 1983, the U.S. Coast Guard began to use photovoltaic for its signal lights and navigation lights power supply. At this time, the U.S. share of the global photovoltaic market was about 21%, and the PV market was mainly for stand-alone system solutions.   Since 1990, the Swiss engineer Markus Real has suggested that it makes more economic sense to equip each house with its own photovoltaic system, i.e. to support decentralized energy conversion. He installed 333 3 kW rooftop PV systems in individual buildings in Zurich.   In 1991, Germany launched the 1,000 Roofs program, and the "Feed-in Law" made it mandatory for utility companies to obtain electricity from small renewable energy plants. Solon AG in Berlin and a solar plant in Freiburg were established.   In 1994 and 1997, Japan and the United States launched the Million Roof Program.   In 2010, the total rated power of photovoltaic systems in Germany exceeded 10 gigawatts, and in 2015, the rated power of photovoltaic systems worldwide reached 200 gigawatts.      

Now on the market antennas have four antennas, there are also six antennas, and when we have the need to buy, then often fall into the antenna the more the signal the better the misunderstanding. ‼️ ‼️ [Misconception 1] Buy a router with more antennas. In fact, the number of antennas and the strength of the signal does not have a direct link, the real determining factor is the router's own transmitter power. ‼️ [Misconception 2] Place the router antennas in a uniform direction. Now most of the home router antennas are placed towards the top, but in fact, each antenna will be placed to a different direction, more effective coverage of the signal in the room. ‼️ [Misconception 3] Arbitrary placement of the router location. Usually when TeleSmart engineers come to install the router, they will place the router in the position of the TV cabinet in the living room, if we later move the router to a sheltered corner or a higher position for other reasons, it may affect the signal reception!

The improvement of 5G communication performance does not rely on one technology alone, but requires a variety of technologies to cooperate with each other to jointly realize. The key technologies are roughly divided into two categories: wireless transmission technology and network technology. Large-scale MIMO technology: the base station uses dozens or hundreds of antennas, narrow beams, directional transmission, high gain, anti-interference, and improved spectral efficiency;   Non-orthogonal multiple access technology: NOMA, MUSA, PDMA, SCMA and other non-orthogonal multiple access technologies to further enhance system capacity. Supports uplink non-scheduled transmission, reduces air interface delay, and adapts to low-latency requirements;   Full-duplex communication technology: a physical layer technology that realizes simultaneous same-frequency bidirectional transmission of information through multiple interference elimination, which is expected to exponentially increase the capacity of wireless network;   New modulation technology: filter bank orthogonal frequency division multiplexing, supporting flexible parameter configuration, configuring different carrier intervals according to the need, adapting to different transmission scenarios;   New coding technology: LDPC coding and polar code with high error correction performance;   High-order modulation technology: 1024QAM modulation, improving spectrum efficiency.   Network slicing technology: Based on NFV and SDN technology, network resources are virtualized, providing resources for different services packaged for different users, optimizing end-to-end service experience, and having better security isolation characteristics.   Edge computing technology: Providing carrier-grade computing and storage resources at the edge of the network, localizing service processing, reducing backhaul link compliance, and reducing service transmission delay.   Service-oriented network architecture: The core network of 5G is constructed with service-oriented architecture, with smaller resource granularity, which is more suitable for virtualization. Meanwhile, the service-based interface definition is more open and easy to integrate more services.

European and North American wiring has the following differences: 1. Different voltage levels: 110V or 120V, 60Hz AC system in the United States, while 220V to 240V, 50Hz AC system in Europe.   2. Different standards of use: The Electrical system in the United States uses the standard NEMA (National Electrical Manufacturers Association), In Europe, the International Electrotechnical Commission (IEC) standard is used.   3. Different wiring: In the United States, non-metallic wire sleeves (NM wire sleeves) are used for size 14 to 10 wires, which include all the cables inside the harness. The way wiring is usually done in Europe is by leading individual cables into boxes, circuit breakers and plugs.   4. Different standards for other electrical equipment: In addition to electrical systems, there are also differences in standards between the United States and Europe for other electrical equipment, such as the shape and size of electrical jacks and plugs.   In general, the electrical system wiring in the United States and Europe is different, mainly due to the voltage level of AC, the standard of use and the type of wire. If you need to use electrical equipment in different areas, you need to carefully understand local standards and regulations, and properly install and connect them.

For high gain directional antennas commonly called a Yagi, they should be pointed so that the long axis of the antenna should be pointed at each other, just like you are looking down the barrel of a gun. The fins should be pointed either vertical or horizontal depending on which way gives you the most amount of clearance. A Yagi antenna should also be pointed so that the largest fins are closest to the mast and the shortest fins pointed at each other. For Omni directional antennas, they should be in most cases pointed directly vertical. That is to say, pointed directly up into the sky. The only time this would not be the case is when both points are at different altitudes along the same vertical plane such as on a wall of a building. In this case, it would be best to have both antennas pointed horizontal as to allow for the radio signal to radiate up and down.

The key components and materials used in the new energy wiring harness may vary depending on the specific design and application. However, some common components and materials used in energy wiring harnesses include:   1. Wiring: High-quality copper or aluminum conductors are typically used for efficient energy transmission.   2. Insulation: Various types of insulating materials, such as PVC (Polyvinyl chloride), TPE (Thermoplastic Elastomer), or XLPE (Cross-linked Polyethylene), are employed to provide electrical insulation and protect against damage.   3. Connectors: Different types of connectors, such as crimp terminals, plugs, sockets, or quick-disconnect terminals, may be utilized to ensure secure electrical connection points.   4. Sleeving: Flexible protective sleeves made of materials like nylon or PET (Polyethylene Terephthalate) are often employed to provide additional insulation and abrasion resistance.   5. Shielding: In some cases, electromagnetic shielding using materials like braided copper or aluminum may be incorporated to minimize interference and ensure signal integrity.   6. Mounting and Fastening Components: Clips, brackets, and other fastening mechanisms enable secure and organized installation of the energy wiring harness.   7. Labels and Markings: Identification labels, color-coding, or other markings may be added to the wiring harness for easy identification and maintenance purposes.   8. Protective Sheathing: Heat-resistant or flame-retardant outer sheathing materials, like PVC or TPE, are frequently used to safeguard the wiring harness against environmental factors and potential hazards.   It is important to note that the specific components and materials used can vary, depending on factors such as the intended application, environmental conditions, regulatory requirements, and customer specifications.

1. Coaxial cable assemblies - Coaxial cables consist of a center conductor surrounded by a dielectric insulator, which is in turn surrounded by a conductive shield. These are used for applications that require low-loss transmission of RF signals.   2. Waveguide assemblies - Waveguide assemblies are hollow metallic tubes or channels used to confine and direct RF energy. They are typically used in applications that require high-power transmission, such as radar and satellite communications.   3. Semi-rigid cable assemblies - Semi-rigid cables are typically constructed from a solid outer conductor and a solid or stranded inner conductor. These assemblies offer a high degree of flexibility, making them ideal for applications in tight spaces.   4. Flexible cable assemblies - Flexible cables are constructed from a stranded or braided outer conductor and a stranded inner conductor. These assemblies offer a high degree of flexibility, making them ideal for applications that require frequent movement or bending.   5. Twinax cable assemblies - Twinax cables consist of two inner conductors separated by a dielectric insulator. They are typically used in high-speed data transmission applications, such as Ethernet and fiber-channel. The choice of RF cable assembly type depends on the specific requirements of the application in terms of frequency range, power handling, size, and flexibility, among other factors.   The choice of RF cable assembly type depends on the specific requirements of the application in terms of frequency range, power handling, size, and flexibility, among other factors.

What are the differences between the 433MHz and 868MHz antennas? 1. Frequency: Obviously, these two antennas are for different frequency bands, 433MHz and 868MHz, therefore, their antenna lengths are also different. 2. Wavelength: Due to the different frequency, the wavelength of these two antennas are also different. In 433MHz band, the wavelength is 69.24cm, while in 868MHz band, the wavelength is 34.54cm. 3. System requirements: Due to the difference of frequency and wavelength, the system requirements of these two antennas may also be different. For example, in 868MHz band, the wavelength is shorter, so it is more suitable for small size electronic devices in some application scenarios. 4. Design: Although both antennas are made with spline form of conductor, their designs may be slightly different due to the different wavelengths. For example, for the 868MHz band, the antenna length is shorter, so the design of their antennas needs to be more compact.   When conducting experiments with different node setups, I needed multiple antennas. I found that the information provided on the internet regarding the length of the 868MHz antenna is not accurate, so I have provided the formula for calculating the antenna length for LoRa applications in the 433MHz and 868MHz bands to facilitate a complete understanding of this information. The antenna is typically a conductor in the form of a spline and is connected to the communication module cable via a transmission line. The diameter of the antenna does not affect its effectiveness; the key is that the shape of the antenna must remain in spline form. The length of the antenna is the same as the wavelength used, usually using half or a quarter of the wavelength length. Most LoRa antennas use a 1/4 wavelength.   To calculate the wavelength of the frequency, the formula is 869v/f, where v is the transmission speed and f is the (average) transmission frequency. In a gaseous medium, the transmission velocity v is equal to the speed of light at 299792458 meters per second c. Therefore, the wavelength for the 868 MHz band is 299.792.458/868.000.000 = 34.54 cm, half of which is 17.27 cm and a quarter of which is 8.63 cm. For the 433 MHz band, the wavelength is 299.792.458/433.000.000 = 69.24 cm, half of which is 34.62 cm and a quarter of which is 17.31 cm. This gives a wire length of 8.6 cm is required as an antenna for LoRa applications in the 868 MHz band. The exact length of the antenna is a major factor in the quality of the antenna. Unless the antenna is soldered directly to the LoRa module, any transmission line needs to be a 50 ohm cable with certified connectors to ensure signal quality.

The main difference between 2-wire and 3-wire motor control circuits is that a 2-wire system only provides the ability to turn the motor on and off, while a 3-wire system provides more advanced control features such as start, stop, and reverse.   The additional contacts in a 3-wire system (typically a switch and a relay) allow for more precise control over the motor. The switch interrupts the control circuit while the relay controls the power circuit, providing more advanced control over the motor. A 3-wire motor system can also provide overload protection, which can prevent damage to the motor and its components in the event of an electrical fault.   A dual-wire motor control circuit is designed to offer the advantages of both 2-wire and 3-wire systems. With a dual-wire system, the motor can be switched on and off through a simple switch. However, if more advanced control is required, such as start, stop, or reverse, an additional set of contacts can be added to the circuit to provide this functionality.   The advantages of a dual-wire system are that it is simpler and less expensive than a 3-wire system but provides more control features than a 2-wire system. Additionally, it does not require the use of a relay, making it a more cost-effective option for controlling smaller motors.

Common points: - Both cables are transmission media connecting different devices. - Both cables can transmit signals to transfer audio and video between different devices. Differences: - RF cables are used to transmit high-frequency signals. They are mainly used for wireless communication systems, TV receivers and satellite receivers, while HDMI cables are mainly used to connect HD devices such as high-definition televisions, Blu-ray players and game consoles. - RF cables are usually used for analog signal transmission, HDMI cables are used for digital signal transmission. - RF cables are more complex to connect than HDMI cables, requiring more connectors or adapters, while HDMI cables are simpler, requiring only a plug and socket connection. - RF cables and HDMI cables also have different transmission speeds. Rf cables have slower transmission speeds than HDMI cables, but RF cables are capable of transmitting a greater signal bandwidth, while HDMI cables provide higher resolution and sharper images. To sum up, although both RF cables and HDMI cables are used to transmit signals, their purpose and transmission characteristics are different. Therefore, you need to select an appropriate cable based on the actual scenario and device.

What is commonly used in Europe instead of wire nuts?   In Europe, wire connectors or terminal blocks are commonly used instead of wire nuts. Wire connectors are devices that serve the same purpose as wire nuts, but they work differently. They have a spring inside and a screw or lever for securely clamping the wire.   Terminal blocks, on the other hand, are used to connect multiple wires together in a common circuit, and they consist of multiple screw terminals arranged in a block. This allows for easy connection and disconnection of wires as needed. In Europe, wire connectors and terminals are commonly used in the wiring of buildings and appliances.

What is Private LTE and Private 5G ？ Private LTE and Private 5G are wireless communication networks that are privately owned and operated. These networks use the same LTE and 5G technologies that are used for public cellular networks, but they are dedicated to a specific organization, industry or area. Private LTE and Private 5G provide many benefits such as high-speed data transfer, low latency, high reliability, and secure communication. They can be used in various indust ries including manufacturing, transportation, energy, healthcare, and public safety. Private LTE and Private 5G can be used for various applications such as machine-to-machine communication, automation, remote monitoring, and control. They can also be used for wireless connectivity in areas where public cellular networks are not available or have limited coverage. Private LTE and Private 5G require a significant investment in infrastructure, including base stations, antennas, and network equipment. However, they provide greater control, security, and flexibility than public cellular networks.

        Multi-core single-core conductor means that a single wire contains multiple single-core conductors at the same time. These single-core conductors are wound together to form a wire. Multi-core single-core conductors are commonly used in low-voltage power cables and internal wiring of electrical equipment to transmit power and signals. In some industrial control and robotics applications, multi-core single-core wires are more convenient and economical than using multiple single-core wires individually, due to the need to connect and separate different signals and power supplies. In addition, multi-core single-core conductors are also commonly used in audio and video equipment to transmit audio and video signals. Multi-core single-core conductor has a variety of specifications and uses, you can choose the appropriate type according to different needs.     The manufacturing process of multi-core single-core conductor mainly includes the following steps: 1. Pretreatment of copper and aluminum materials: pretreatment of copper and aluminum bars by processing and hot cracking, so that the original metal materials meet the requirements of physical and mechanical properties. 2. Single-core wire manufacturing: according to the specified standards and production requirements, the copper and aluminum bar is drawn and processed into a fixed-diameter copper and aluminum single-core wire in the wire making machine. 3. Tape assembly: Group, twist and wind the single conductor according to the specified quantity, structure and electrical characteristics. 4. Stranding: Group the wire stranding machine, wind the good single-core wire, strengthen and bind in accordance with the provisions of the stranding way. 5. Wrapping: Wrap the outer insulation layer as required for insulation treatment, and print the production batch, factory name, label and other related specifications on the surface. 6. Inspection: Put the insulated multi-core single-core conductor into the inspection table to test the mechanical strength, electrical performance and other indicators of its conductor, insulation layer and insulation parts. 7. Packaging: According to the regulations, the multi-core and single-core conductor shall be packaged and stored or transported directly according to the production batch, engineering project, etc. The above is the general manufacturing process of multi-core single-core wire. The manufacturing process and process of different manufacturers may vary.  

A solar cable is the interconnection cable used in photovoltaic power generation. Solar cables interconnect solar panels and other electrical components of a photovoltaic system. Solar cables are designed to be UV resistant and weather resistant. They can be used within a large temperature range.   Specific performance requirements for material used for wiring a solar panel installation are given in national and local electrical codes which regulate electrical installations in an area. General features required for solar cables are resistance to ultraviolet light, weather, temperature extremes of the area and insulation suitable for the voltage class of the equipment. Different jurisdictions will have specific rules regarding grounding (earthing) of solar power installations for electric shock protection and lightning protection.

The full name of SMA is Small A Type. It is a typical microwave high frequency connector. The highest frequency used is 18GHz. In the design of radio frequency circuits, SMA connectors are often added to the circuit for input and output signals. SMA connectors are the most common connectors in radio frequency circuits. SMA overview SMA, a common antenna interface: SMA is the abbreviation of Sub-Miniature-A. The full name of the antenna interface of SMA should be SMA inverse male. ). The wireless devices with this interface are the most popular. APs with more than 70%, wireless routers and wireless network cards with more than 90% PCI interfaces all use this interface. This interface is moderate in size, and there are also devices such as handheld walkie-talkies. Many of them are of this type, but the needles and tubes inside are opposite to the wireless devices. Wireless APs and wireless routers using this interface include most of the civilian equipment. TP-LINK, DLINK, Netgear, Belkin and other brands, as long as the antenna is detachable, basically use this interface. The antenna interface of SMA should be SMA, and SMA and RP-SMA are different. There are many types of SMA. One difference in polarity is called "SMA" and the other is called "RP-SMA". The difference between them is: the standard SMA is: "external thread + hole", "internal thread + needle" ", RP-SMA is: "external thread + needle", "internal thread + hole". SMA antenna interface The full name of the antenna interface of SMA should be the SMA inverse male connector, which is the antenna connector. The equipment is the most popular. APs with more than 70[%], wireless routers, and wireless network cards with more than 90[%] PCI interfaces all use this interface. This interface is moderate in size, and many handheld walkie-talkies and other devices are of this type. , But the needle and tube inside are opposite to the wireless device. SMA connector type The new generation of meters are equipped with SMA connectors or corresponding SMA adapters. The quality of SMA connectors is also different. From the perspective of the impact on signal quality, a good SMA connector provides a good standing wave ratio, which has low signal reflection and can effectively transmit signals. There are many types of SMA connectors. From the connection of the interface, there are male and female (or male or female). In terms of connection, some can be directly inserted on the side of the PCB. If it is inconvenient to insert on the side, it can be inserted on the top of the PCB. The middle is the signal, and the surrounding four pins are ground. There are also screws fixed, mainly used for the side wall connection of the radio frequency circuit with a shielding box. There are four screws and two.

Wire harness is also known as cable harness. We say that veins is to human as wires is to electrical systems such as in power generation, signal transmissions and distribution systems. Wire harness is an assembly of wires that transmit electrical signals, in which the wires are clipped or bundled together with ties, laces, tape or a conduit strung together. The reliance of electricity on wires and cables as a form of transport is very critical. Achieving a reliant and effective transport of electricity from one point to another (eg. power generation to consumer) in a cost-effective, sustainable, easy and space-saving manner using safe, compliant raw materials is an objective that Scondar has accomplished by their expertise in research and development of electronic wires, connectors and cable assemblies. We can see wire harness anywhere; such as in automotive systems, on motorbikes, home appliances. They are present whenever we need electrical cabling and wire harnessing and that is where Scondar provides your specific wire-to-board, board-to-board and board-in connectors with specialized and safe harness to suit your need.

RY Electronics has over 10 years of experience designing and manufacturing custom cable assemblies and antennas in large or small volumes depending on your needs. Our manufacturing facilities can build just about many types of custom cable assembly(LVDS cable/Flat cable/RF cable/wire harness) as well as GPS/WIFI/ISM/GSM/3G/4G antenna and RF connectors. Our advantages: 1. Quality control:most of products have UL CE ROHS, certificate. ISO9001:2008. 2. Low MOQ:5pcs/10pcs/20pcs/50pcs,depends on different items. 3. Fast Delivery Time :2~15 days, On-Time Delivery. 4. Good After-Sales Service: we could offer technical support or return service in short time. 5. 1 Year Warranty. 6. OEM/ODM service. 7. We are available with Trade Assurance, you'll enjoy: •100% product quality protection •100% on-time shipment protection •100% payment protection for your covered amount  

Ceramic Antenna Is An Important Part Of The Navigation System, Because It Is Used Most. Some Manufacturers Cut Corners In Order To Make Profits, Which Leads To Poor Reception Signal And Low Reliability Of Many Ceramic Antennas. So How Should We Buy Ceramic Antenna In The Market? In Fact, It'S Similar To The Tips For Purchasing GPS Antenna We Mentioned Last Time. Here Are Some Tips For Purchasing Ceramic Antenna From RY Manufacturer   Tip 1: Most Ceramic Antennas Are Made Of Ceramic Materials, Low Noise Signal Amplifiers, Resistors, Capacitors, Inductors, Cables And Connectors, So The Selection Of Components Is Very Important.   Skill 2: The Stability Of Ceramic Antenna, That Is To Say, When Choosing Ceramic Antenna, We Should Choose One With Strong Anti Electromagnetic Interference, In Order To Prevent Everyone From Bumping, High Temperature And Electromagnetic Interference To Ceramic Antenna During Driving, So We Must Pay Attention To The Stability When Choosing.   Tip 3: When Purchasing Ceramic Antenna, Although We Don'T Need To Choose The Brand As The Purchase Option, We Only Choose LNA For Internal Use, But Now There Are Many Ceramic Antenna Manufacturers, And Some Products Are Inferior In Quality; Therefore, When Choosing A Manufacturer, We Should Not Only Choose Products With Guaranteed Quality, But Also Consider After-Sales Service.   Tip 4: Also Pay Attention To Distinguish Module Level, Ceramic Antenna Module Can Be Divided Into Two Levels, Namely Civil And Industrial, Industrial Performance Is Very Stable, But The Price Will Be More Expensive, Civil Module Environmental Adaptability Will Be Poor, The Price Will Be Cheap, So You Can Choose According To Your Own Needs To Choose High Cost-Effective Module.   Have You Learned How To Choose Ceramic Antenna? In Addition To The Above, It Is Also Very Important For Us To Choose A Strong Manufacturer, Because There Are Many Manufacturers Of Navigation Antenna. If We Choose The Wrong One, The Natural Effect Of The Product We Buy Is Not As Good As The Genuine One, So We Must Choose Carefully.

Automotive Wiring Harness Is Also Known As The "Blood Vessel" Of A Car, Which Is Usually Called The Central Nervous System Of A Car. The Design Of Automotive Wiring Harness Plays A Very Important Role In The Whole Vehicle. It Is Of Great Significance To Study The Quality Control Points In The Manufacturing Process Of Automobile Wiring Harness For Improving The Qualification Rate And Reliability Of The Whole Vehicle. There Are Four Steps In The Main Process Of Automobile Wire Harness Production: Offline Crimping Pre Assembly Final Assembly. The Production Process For Different Production Processes, Formulate The Corresponding Standardized Operation Specification, So That The Quality Of The Harness Products Can Be Effectively Guaranteed.   Off Line Technology Off Line (Known As Stripping Head) Refers To Stripping The Insulation Skin On The Wire According To The Requirements Of The Operation Instruction, And The Length Should Meet The Requirements. Good Stripping Requires That The Wire Type, Diameter, Color, Length, Stripping Length And Appearance Meet The Requirements. Precautions During Stripping: ① The Stripping Length Meets The Requirements; ② The Section Of Insulating Skin Is Uniform; ③ The Wire Core Is Not Cut Or Injured, And The Wire Core Is Not Scattered Or Twisted; ④ There Is No Loose Wire In The Core; ⑤ The Wire Core Is Not Oxidized And Blackened. If The Wire Core Is Oxidized And Blackened, It Is Easy To Cause Virtual Connection. After Stripping, The Wires Shall Be Bundled Into Bundles According To A Certain Number, And Each Stripping Head Shall Be Provided With A Protective Cover, So As To Prevent The Wire Core From Branching Or Scattering. It Shall Be Placed On The Wire Rack, And The Handling Process Shall Be Reduced As Far As Possible. In The Production Process, Some Companies Do Not Take Necessary Protective Measures After Stripping, Or Improper Protective Measures Are Easy To Cause The Core Scattered, Forked, Twisted Or Broken. As A Result, It Is Difficult To Operate And The Quality Of Crimping Is Poor.   The Crimping Crimping Process Of Terminal Is The Most Important Part In The Whole Process Of Wire Harness Production. The Wire Type, Specification, Color, Terminal Specification And Crimping Dimension On The Process Card Must Be Carefully Checked For Crimping. It Is Particularly Important To Check The Quality Of This Link. The Quality Of Terminal Crimping Is Mainly Guaranteed By Crimping Die On Crimping Equipment And Equipment. In Terminal Crimping, The Wire Stripping Head Shall Be Positioned Instead Of Visual Assurance By Operators. After The Crimping Is Completed, To Ensure The Mechanical And Electrical Performance Of The Terminal, Pull Off Force Test Must Be Conducted To Check The Crimping Inspection Of Crimping Terminal Of Crimping Quality Terminal ① Appearance Inspection: The First Piece Inspection Must Be Conducted For Terminal Crimping, And 3-5 Pieces Of First Piece Shall Be Taken For Judgment. Whether The Visual Terminal Crimping Appearance Is Good; Whether There Is Leakage Of Wire Wire; Whether The Wire Is Broken Or The Insulation Layer Is Pierced Or Cut. Whether The Insulation Layer And Wire Are Closely Connected With The Terminal, Whether They Are In The Specified Area ② Pull Force Test: The Pull-Out Force Test Mainly Tests The Tightness Of The Combination Of The Terminal And The Harness. Through The Pull Off Force Test, Confirm Whether The Maximum Pulling Force Meets The Requirements. Normal Batch Production Can Only Be Carried Out After The Pull Force Test Meets The Requirements. The First Piece Must Be Kept To Ensure Subsequent Traceability. In The Process Of Terminal Crimping, Many Enterprises Pursue Speed, And Think That The Faster The Operator Crimp Terminal, The Better, To Measure The Performance Of Employees. This Is Not Desirable. Korean Enterprises Have Made Clear That Crimping Terminals Cannot Exceed A Certain Speed, Because Only In Such A Speed And State, The Quality And Qualification Rate Of Crimping Terminals Are The Best.   Pre Assembly Process Insert The Wire Of Crimped Terminal Into The Connector Hole According To The Sequence And Method Specified In The Process. Or Insert The Waterproof Bolt Into The Connector Hole. Key Points: Before Subpackage, Carefully Check The Type Of Sheath And Wire Specified On The Process Card, And Check The Quality Of Sheath, Wire And Terminal Crimping. If The Material Or Semi-Finished Product Is Unqualified, Subpackage Is Not Allowed. The Terminal Must Be Inserted In Place And Flat, That Is, The Top Of The Terminal Is On The Same Plane Without Skew And Deformation. If The Assembly Is Not In Place, The Wire Will Fall Out Of The Plug Box In The Subsequent Process. Therefore, During The Assembly Process, Pull Back To Confirm Whether The Terminal Is Completely Inserted Into The Plug-In Box. The Quality Standard Is As Follows: ① The Hole Position Of The Terminal Must Meet The Hole Position Requirements Of The Sub Assembly Drawing - The Hole Position Arrangement Is Seen From The Terminal Insertion Direction; ② The Plug-In Terminal Must Be Implemented According To The Three Steps Of "Push", "Listen" And "Pull", So As To Ensure That The Terminal Is In Place And Will Not Exit. In Particular, It Is Necessary To Pull Back After Inserting The Terminal. If The Terminal Does Not Withdraw After Pulling Back, It Means That The Terminal Is Inserted In Place. ③ The Appearance Of The Terminal After Inserting Must Be Neat And In Place, Without Deflection. ④ The Wire Led Out After The Sheath Must Be Smooth, Without Obvious Length Difference, Which May Cause Single Stress   Assembly Process The General Assembly Process Is To Assemble The Clip According To The Process Requirements, Bind And Wind The Sheathed Wire On The Assembly Plate To Form A Special Wire Harness. Matters Needing Attention In General Assembly: ① Assembly Error Of Hole Position (Also Known As Wrong Wiring), Which Is The Most Serious Error In Assembly And Affects The Safety Of Use (Key Points And Quality Requirements In Each Process Of Harness Production). ② Attention Should Be Paid To Wrong And Missing Assembly In Harness Assembly Process. If Wrong And Missing Assembly Can Not Be Found In Time, It Will Cause A Large Number Of Repair Work And Secondary Injury Of Harness. There Are Few Clips In The Wiring Harness, Which Makes It Impossible To Assemble When Loading. The Wrong Position Of The Harness Clip, Resulting In Unable To Load. ③ The Harness Is Not Wound Or Tightly Wound, Resulting In Loose Wires And Missing Wires. In The Assembly Process Of The Whole Vehicle Harness, The Harness Is Scratched, And The Single Wire Is Too Large, Which Eventually Leads To The Damage Of The Harness. ④ If The Harness Has A Bifurcation, The Direction Of The Harness Must Be Smoothed, And Then It Is Bound Or Wound. Otherwise, In The Process Of Loading, It Is Easy To Cause The Wiring Harness To Be Twisted, Or The Size Is Not Enough, The Force On The Buckle Or Fixed Point Is Too Large, Resulting In The Damage Of The Fixed Point, The Final Abnormal Noise, Or The Abrasion Of The Wiring Harness. ⑤ The Tail Of The Retained Part Should Be 5 ~ 15mm After Cutting The Binding Belt, And There Should Be No Sharp Corners; ⑥ After The Wiring Harness Is Assembled, It Shall Be Hung On The Wire Rack. The Wire Rack Shall Be Made Reasonably. The Wire Harness Shall Not Be Dragged On The Ground, Causing The Sheath Or Terminal To Be Scratched Or Trampled, Causing Damage.   Final Inspection After The Wiring Harness Is Assembled, It Is Necessary To Carry Out Power On Inspection And Appearance Dimension Inspection. First Of All, Power On Inspection Is To Plug And Connect The Sheaths And Connectors Of The Wiring Harness With The Detection Equipment. After The Connection Is In Place, The Equipment Will Automatically Enter Each Line For Judgment. There Are Pre Input Detection Procedures For Each Type Of Wiring Harness In The Equipment. After All The Wires Are Qualified, The Equipment Will Display 0k. If There Is A Fault In A Certain Branch Line, The Equipment Display Will Display In Different Colors, And The Inspectors Will Check And Repair According To The Equipment Prompts, And Then Carry Out The Test Again. Until All Qualified. Do Not Pull The Harness Savagely To Avoid Damage. The Unqualified Products Shall Be Marked With Red Tape And Put In The Special Unqualified Product Box Or The Designated Trailer To The Designated Repairman For Repair. Power On Inspection Must Be 100% Inspection. Secondly, The Appearance And Size Inspection. The Appearance Dimension Inspection Is Placed After The Power On Inspection, Mainly Because The Terminal Connector On The Power On Inspection Equipment Of Some Enterprises Is Damaged, Which May Cause The Pin On The Harness To Be Damaged, Skewed, Fallen Off And Broken. Appearance Inspection Shall Start From The End Of The Line, And Shall Be Conducted One By One Along One Direction To Avoid Omission. Check Whether The Pins In Each Sheath Are Skewed Or Uneven, Whether The Coarse And Close Winding Of The Thread Are Qualified, Whether The Waterproof Bolt Falls Off, Whether It Is Assembled In Place, And Whether The Buckle Is Loose. Once Found Unqualified, It Is Necessary To Label The Unqualified Place, Write The Unqualified Mode, And Place It In The Unqualified Product Area For Rework. Finally, The Dimension Inspection Is Mainly To Place The Harness On The Inspection Tool, Position The Harness, Check Whether The Position Of Each Clip Is Within The Specified Range, Whether The Harness Length Meets The Requirements, And Whether The Length Of Each Branch Meets The Requirements. After The Inspection Is Qualified, The Qualified Label Shall Be Pasted And The Packing And Warehousing Shall Be Carried Out

What Is The Internal Structure Of Ceramic Antenna?   Ceramic Antenna, As An Antenna For Receiving Satellite Signals, Is Fixed On The Circuit Board Of Electronic Devices. Because Its Reading Distance Is Relatively Short, It Is Also Called Short-Range Antenna. It Transforms The Electromagnetic Wave Energy Of Satellite Receiving Radio Signals Into The Current That Can Be Absorbed By The Electronic Devices Of The Receiver. What Is Its Internal Structure Composed Of? Let'S Listen To The Technology Of RY Manufacturer What Did The Surgeon Say 1. Input Components The Radiation Component Is Connected With The Connection Between The First Side And The Second End, And The Outer Edge Of The Radiation Component Is Also Electrically Connected And Extends To The Second Side Of The Ceramic Antenna.   2. Carrier The Ceramic Antenna Has A First Side And A Second Side, And A Second End And A Second End Connected With The First And Second Sides; In Addition, The Carrier Is Provided With A Penetrating Perforation, So The First Metal Pattern Is Arranged At The Hole Edge Of The First Side.   3. Radiation Components The Ceramic Antenna Is Attached To The First Side Of The Carrier, And The Ceramic Antenna Has An Outer Edge Part.   4. Ground Assembly The Radiation Component Is Connected With The Connection Between The First Side And The Second End, And The Outer Edge Of The Component Is Electrically Connected And Extends To The Second Side Of The Ceramic Antenna.   5. Fixed Needle The Fixed Pin Passes Through The Through Hole Of The Circuit Board And Is Fixed With The Circuit Board After The Perforation Through The Carrier.   The Internal Structure Of Ceramic Antenna Is Composed Of Circuit Board, Carrier, Radiation Component, Grounding Component, Input Component And Fixed Pin, Which Has The Characteristics Of Stable Performance And Good Anti-Interference Performance.

Antenna quality control From single polarization antenna, dual polarization antenna to smart antenna, MIMO antenna and large-scale array antenna, mobile communication antenna has undergone great changes. As a sensing organ of mobile communication network, its position in the network is becoming more and more complex, and it is more and more important. For example, more than 40% of network failures are caused by antenna system. The quality of antenna system will lead to poor coverage performance or interference. As a complex passive product, antenna is difficult to monitor in the network. Antenna system is problematic The performance of the network is various, such as the network coverage performance is obviously decreased, intermodulation interference is more and more serious, and VSWR worsens when the air humidity is too high. It is urgent to improve the antenna quality.   1. Stability - the ability of a product to maintain its characteristics constant over time, usually the ability of a product to remain unchanged over time. The stability and reliability of the product are inseparable. The reliability of antenna performance is judged by the coincidence degree of index curves before and after reliability test. (1) Radiation parameters are not sensitive to process and circuit, while circuit parameters are sensitive to circuit and process. In production process, especially many times of debugging, it is easy to influence circuit parameters; (2) Among the circuit parameters, the intermodulation is too small, and it is not suitable for statistical evaluation because of its high sensitivity to test methods, testing equipment and environment; (3) The circuit parameters are low in requirement for the test site, and can be tested on site. Radiation parameters require high reflection and shielding characteristics of the test site, and can not be tested on site.   Therefore, it is suggested to select the ratio of standing wave and isolation degree of circuit parameters as the stability characterization parameters of antenna performance.   2. Reliability - generally, the reliability of a product refers to the ability or possibility of components, products, systems to perform specified functions without failure in a certain period of time and under certain conditions. Reliability of products can be evaluated by reliability, inefficiency, average fault free interval, etc. Environmental reliability refers to the ability of products to complete the specified functions under the specified conditions and within the specified time. In the process of design and application, the products are constantly subjected to the influence of their own and external climate and mechanical environment, but still need to be able to work normally, which requires the verification of them with test equipment. Reliability includes three factors: durability, maintainability and design reliability. The reliability of design is the key to determine the quality of the product. In the design, the usability and operability of the product must be fully considered, which is the requirement of an excellent antenna product designer. The reliability test of antenna products is an important means to investigate, analyze and evaluate the reliability of antenna products. It includes high and low temperature test, rain test, vibration test, impact test, collision test, vehicle transportation test, wind load test, ice taking test and power test. The reliability of antenna structure can be tested by environmental test.   3. Consistency - refers to the consistency of the parameters of the same antenna product. In a word, antenna belongs to the passive product with broadband and low Q value, and will not be restored after the material structure is damaged during reliability test. The frequency change caused by thermal expansion and contraction of materials during high and low temperature test is ignored. The change of test index after comparison test is enough to reflect the stability of electrical performance index, and it is not necessary to test the index during reliability test. The intermodulation index of antenna is sensitive to the manufacturing process and structural stability. Dynamic test can be adopted to verify the product stability indirectly. The reliability, stability and consistency of antenna have important influence on mobile communication network. It is important to measure and control these performances before antenna products enter the network. The key is to identify key parameters and sensitivity in the process of antenna design to control the risks in large-scale production. Risk points can be realized by the parameter analysis of full wave simulation, but many parameters are often coupled with each other, which makes it difficult to identify their own independent sensitivity. This difficulty can be solved by feature model analysis. We have done comparative study, and the sensitive parameters in the feature mode gap are consistent with the sensitivity of the parameters in the real full wave analysis and test. The information obtained from feature model analysis can help to identify key information, so as to improve machining accuracy or protect necessary in key places, so as to ensure consistency and stability.

1. RY Electronics has over 10 years of experience designing and manufacturing custom cable assemblies optical fibers cable and antennas router in large or small volumes depending on your needs. 2. Our manufacturing facilities can build just about many types of custom cable assembly(LVDS cable/Flat cable/RF cable/wire harness) as well as GPS/WIFI/ISM/GSM/3G/4G antenna and RF connectors.   3. Quality is important for us and for the customer, the client’s demand is more supreme. We create an easier, less costly and extremely satisfactory way of business. Striving to achieve improving results through our continuous innovating and technical engineer’s effort, we create values to turn the antenna / Cable / Harness to your exact demand. 4. We guarantee every antenna / Cable / Harness we offered must be tested by network analyzer / Precision Low Voltage Wire Tester to ensure the perfect quality before delivery. Cooperated with many overseas clients from over twenty countries, we will be your ideal OEM/ODM partner.

RG174 coaxial cable meets the standard: M17 / 119-rg174, the maximum working frequency: dc-1ghz, RG174 / u is used to provide high-speed, high-precision data transmission, common applications include security systems, computer networks, access control and home automation applications, rg-174 coaxial cable is often used to connect wireless devices and antennas in wireless networks, and is also often used in automotive wiring harness.   RG174 Cable Specification:   RG174 Coaxial Cable/RG174 同轴电缆 RG174 Coax Construction/RG174 同轴电缆结构 OD/直径 (mm) Conductor/导体: 7/0.16 Bare Copper-Clad Steel (BCCS)/裸铜包钢 0.48 Dielectric/绝缘体: Polyethylene (PE) /聚乙烯 1.52 Shield/屏蔽层: Tinned Copper (TC)/镀锡铜 1.93 Jacket/护套: Polyvinylchloride (PVC)/聚氯乙烯 2.80 RG 174 Cable Physical Characteristics/RG 174 电缆物理特性 Weight per/重量100m: 1.19kg Minimum bend radius/最小弯曲半径: 25mm Operating temperature range/工作温度范围: －40℃ to +75℃ RoHS compliance/符合RoHS: 2011/65/EU (RoHS) RG-174 Cable Electrical Characteristics/RG-174 电缆电气特性 Impedance/阻抗: 50 +/- 2 ohms Capacitance/电容: 101 pF/m. max Maximum voltage/最大电压: 1100 Volts Velocity of propagation/速率: 66 % Operating Frequency/工作频率: 1 GHz Screening effectiveness/屏蔽效率 ≥ 40 dB (up to 1 GHz) Insulation resistance/绝缘电阻: ≥ 1 x 108 MΩm Max. operating voltage/最大工作电压 ≤ 0.85 kVrms (at sea level) RG174 Attenuation/RG174 衰减: Freq/频率(MHz) Typical/典型值(dB/m) Max. CW power/功率 最大值 100 0.276 117 400 0.623 59 700 0.886 44 1000 1.12 37

Rg179 coaxial cable meets the standard: M17 / 94-rg179, maximum working frequency: DC-3GHz, good anti electromagnetic interference and flexibility, not only light weight, but also high temperature resistance, moisture resistance, corrosion resistance and other characteristics, shielding, attenuation, standing wave and other indicators have excellent electrical performance. It is widely used in communication, aviation, intelligent robot, military and other fields.   RG179 Coax Construction/RG179 同轴电缆结构 OD/直径 (mm) Conductor/导体: 7/0.12 Silver-coated Copper Clad Steel (SCCS)/镀银铜包钢 0.31 Dielectric/绝缘体: Extruded Solid Polytetrafluoroethylene (PTFE)/聚四氟乙烯 1.55 Shield/屏蔽层: Silver Plated Copper (SPC)/镀银铜 2.0 Jacket/护套: Extruded Fluorinated Ethylene Propylene (FEP)/聚全氟乙烯 2.54 RG 179 Cable Physical Characteristics/RG 179 电缆物理特性 Weight per/重量100m: 1.5kg Minimum bend radius/最小弯曲半径: 15mm Operating temperature range/工作温度范围: －65℃ to +165℃ RoHS compliance/符合RoHS: 2011/65/EU (RoHS) RG-179 Cable Electrical Characteristics/RG-179 电缆电气特性 Impedance/阻抗: 75 +/- 2 ohms Capacitance/电容: 63 pF/m. max Maximum voltage/最大电压: 1200 Volts Velocity of propagation/速率: 69 % Operating Frequency/工作频率: 3 GHz Screening effectiveness/屏蔽效率 ≥ 41 dB (up to 1 GHz) Insulation resistance/绝缘电阻: ≥ 1 x 108 MΩm Max. operating voltage/最大工作电压 ≤ 0.75 kVrms (at sea level) RG179 Attenuation/RG179 衰减: Freq/频率(MHz) Typical/典型值(dB/m) Max. CW power/功率 最大值 150 0.30 297 600 0.631 148 1000 0.856 112 1500 1.05 94 2000 1.25 82 3000 1.65 66  

Hello,Beautiful Day Happy New Year How Are You ? Our Company Can Produce Antenna / Cable / Harness / Connector Welcome To Consult With Me.

Dear Customers:   Hello ！   Thank you for your long-term support and cooperation. Here, all the staff of Zhangjiagang RY Electronic CO.,LTD would like to express their sincere thanks! Due to the needs of our business development and the expansion of the company's scale, the company will move to a new office address from October 25. The specific contact information is attached.   We apologize for the inconvenience! Our company will take this relocation as a new starting point, wholeheartedly provide more satisfactory service and cooperation for your respected customers, and thank you again for your long-term support and attention!   New office address: F5,Building8, changshunchuanggu, jinfeng,Zhangjiagang 215624,China   Tel: 0086-512-58935469   Mob:0086-13405295160   Welcome to Visit  

Share Common RV, AVR, BVR, RVV Wire Specifications, Very Comprehensive Wire Specification Chart RV wire specification, general purpose single core flexible conductor sheathless cable AVR wire specification, copper core PVC insulated flexible wire for installation BVR wire specification, copper core PVC insulated flexible cable RVV wire specification, 227IEC53 (RVV) RY electronics is a wire harness processing factory for 10 years, always regards quality as the first life of the enterprise, and always adheres to the leading technology and brand strategy. Now we have passed the iso9001:2015 certification. We will continue to adhere to the "customer-oriented, market-oriented" purpose, constantly face the future, and with the mind of occupying the world, welcome guests from all over the world.

General Provisions: Connection list 1.) The connection list is an explanatory table for wiring harness connection, wire specification and path description. The height of the table is 8.5mm, and the width of the table from left to right is as follows: wire number column width 21mm, wire diameter column width 16mm, &; The width of color column is 16mm, the width of starting column is 16mm, the width of hole position column is 16mm, the width of terminal bar is 40mm, the width of sealing ring column is 16mm, the width of hole position column is 16mm, the width of terminal bar is 40mm, the width of sealing ring column is 40mm, and the width of remark column is 40mm remarks: 1. Wire number: the address mark of wire, which can be letters (up to 2 digits), numbers (up to 2 digits) or their combination. When it is an alphanumeric combination, the letter must be placed at the beginning. 2. Line diameter: the cross-sectional area of a wire. 3. Color: conductor color: G green, R red, y yellow, Br brown, b black, l blue, GR gray, P pink, LG light green, V purple, O orange, w White, for details, refer to QC / t414. 4. Start point: where the wire starts from. 5. Hole location: the position of the wire in the starting plug-in. 6. Terminal number: matches the terminal number of the plug-in 7. Seal ring: match the seal ring number of the plug-in 8. End point: wire to shell plug-in termination. 9. Note: wire type The line type of this item adopts the specified level 0 and the font size is 4 HZ.txt 。   Connector drawing method of connectors The view direction of connector is shown in Fig. 1. The wiring harness drawing only draws the physical object a-direction view to show the plug-in hole location, wire number and positioning pin, and the line type adopts the specified layer 4; the internal wire code adopts the specified layer 4, and the font adopts the No. 2 HZ.txt The hole location shall be defined according to the hole number of the electrical terminal or the harness plug-in. If it is not available, the plug-in number shall be numbered from left to right as shown in Figure 1.  

1. Planar antenna loaded ceramic   The dielectric coefficient of ceramic is high and the loss is small, which can bring gain compared with air medium Therefore, microwave ceramics with high dielectric and low loss are used to make antennas.   2. The gain keeping of four arm helical configuration when space position changes   No matter how it is placed, the gain drop is small. Its development also evolved from air medium to ceramic medium        

GPS and Beidou antennas can be manufactured by different technologies. Generally, plane structure is used in civil systems. For example, in mobile phones, most of them adopt linear polarization, while in military systems, 3D structure of circular polarization is used to adapt to the installation environment where terminal position changes dramatically.   The comparison of antenna performance involves many factors. It is recognized that the best antenna in the industry is a four arm spiral antenna loaded with high dielectric ceramics. The corresponding process is also very complex. Here we recommend a new manufacturing process: 3D printing technology (additive manufacturing technology). Its 3D GPS antenna is the best in cost performance.   一. Several Antenna Objects Among them, the volume of 3D hilber antenna is the smallest (8x8x8mm), and the area of ceramic antenna is the largest (30mmx30mm)   (1) The actual test data show that the 3D Hilbert antenna is 5 times smaller than the ceramic plane antenna, but the receiving signal amplitude and the number of receiving stars are almost the same.   (2) Compared with the other three antennas, the gain of 3D antenna is more than 3 dB better than that of planar antenna.   The radiation direction of the planar GPS antenna is simulated as shown in the figure. The blue and red boundaries are clear and the signal amplitude changes dramatically. The four arm helix antenna is composed of two groups of helix, which forms a pair of orthogonal antenna combinations in space. The space radiation is superposed into the heart type. No matter how the antenna shakes, it has 3dB more gain than the 2D antenna. It is recognized as the best performance antenna in the industry, so is the actual test!  

polarization The radiation field of antenna consists of electric field and magnetic field. These fields are always at right angles. The electric field determines the polarization direction of the wave. When a wire antenna extracts energy from the passing radio waves, the maximum electric field will be generated when the antenna direction is the same as the electric field direction.   The oscillation of electric field can be unidirectional (linear polarization), or the oscillation direction of electric field can rotate with wave propagation (circular polarization or elliptical polarization).   Linear polarization The receiving antennas installed vertically and horizontally receive vertical and horizontal polarization waves respectively. Because the antenna cannot receive signals with different polarization, the change of polarization will cause the change of received signal level. There are mainly two kinds of polarization surfaces:   In the vertical polarization wave, the electric field direction is vertical. In the horizontally polarized wave, the electric field direction is horizontal.   Linear polarization can receive signals from all planes except for two orthogonal polarizations. When a single wire antenna is used to receive radio waves, the energy received by the receiving antenna is the largest when the electric field direction is the same, so the vertical antenna is used to receive the vertical polarization wave efficiently, and the horizontal antenna is used to receive the horizontal polarization wave.   Circular polarization Circular polarization refers to the 360 degree rotation of electric field in every RF energy cycle. Circular polarization is caused by two 90 ° phase-shifting receivers and two 90 ° plane polarized antennas. Since the intensity of the wave is usually measured by the electric field intensity (volts, millivolts or microvolts per meter), the electric field is chosen as the reference field.   In some cases, the direction of the electric field is not constant. Therefore, as the wave propagates in space, the magnetic field rotates. Under these conditions, the horizontal and vertical components of the field exist, and the wave has elliptical polarization. Circular polarization includes right-handed circular polarization and left-handed circular polarization. The circularly polarized wave is reflected by a spherical raindrop opposite to the transmitted wave. When receiving, the antenna will reject the wave in the opposite direction of circular polarization, so as to minimize the detection of raindrops.   Because the aircraft target is different from rain, it is not spherical, so the reflection of the target has an important component in the sense of original polarization. Therefore, the intensity of the target signal will be enhanced relative to the raindrop target.   In order to absorb the maximum energy from electromagnetic field, the receiving antenna must be on the same polarization plane. If the antenna with different polarization direction is used, considerable loss will be generated, and the actual loss is between 20 and 30 dB.   When strong air clutter appears, air traffic controllers tend to turn on the circularly polarized antenna. In this case, the hiding effect of air clutter on the target will be reduced.

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Wire Harness : Wire used to connect two or more components to transmit current or signal. It can simplify the assembly process of electronic products, be easy to maintain and upgrade, and improve the flexibility of design. High speed and digitalization of signal transmission, integration of various types of signal transmission, miniaturization of product volume, surface pasting of contact termination, modular combination, plug-in convenience, etc. Used for internal connection of all kinds of home appliances, testing instruments, equipment, computers and network equipment. Industrial Wiring Harness: it mainly refers to some electronic wires, multi-core wires and cables with components in the cabinet, which are mostly used in industrial cabinets such as UPS, PLC, CP, frequency converter, monitoring, air conditioning, wind energy, etc Automobile Wire Harness: is the main network of automobile circuit, also known as low-voltage cable. The conventional automobile harness products have the characteristics of heat resistance, oil resistance, cold resistance and so on; at the same time, it is full of softness. It is used for internal connection of automobile and can adapt to high mechanical strength and high temperature environment LVDS Cable: Low Voltage Differential Signal,It is a new technology that can satisfy the application of high performance data transmission. Compared with other competitive technologies, the power consumption of LVDS line is much smaller when providing high data rate. The data rate of products using LVDS line technology can be from hundreds of Mbps to more than 2gbps. It has been widely used in many LCD screens which require speed and low power consumption.

Standard Model Of Electronic Harness： UL electronic wire is the general designation of UL certified electronic wire, which is the UL electronic harness meeting the environmental protection requirements under the EU ROHS standard. It is generally used in weak current engineering, such as internal wiring of electronic and electrical equipment. Certification of low smoke and halogen-free electronic wire standards: mainly UL underwriter Laboratories Inc. UL safety test institute is the most authoritative organization in the United States, and also a large non-governmental organization engaged in safety test and appraisal in the world. The commonly used wire models of UL electronic harness include: ul1007 electronic wire, ul764 electronic wire, ul1015 electronic wire, ul1032 / 1028 electronic wire, ul1095 electronic wire, ul1569 electronic wire, ul1571 electronic wire, ul1617 / 1618 electronic wire, ul1061 electronic wire, ul1430 / 1431 electronic wire, ul3302 electronic wire, ul3385 electronic wire, UL10368 electronic wire. Electronic wire: generally used for weak current engineering, such as internal wiring of electronic and electrical equipment. The advantages of UL electronic harness are light, thin, short, small and variety, multiple specifications and insulation, good safety performance, etc.  

hello Dear Customer Every time we deliver goods, our company follows the following process：   100% quality inspection before each shipment  

Happy New Year to Everyone ! Everything Goes Well ! Happy Everyday ！ Good Health ！     With" Happy New Year!",Great voice form everyone's heart.Best wishes,you and me,we happy together to welcome our new year with smile.We believe tomorrow will be better than ever before.

  Objective: to ensure the uniform operation and stable quality of the wire harness products during assembly. At the same time, the product meets the relevant process and customer requirements, and this operation instruction is specially formulated.   Scope: applicable to all wire crimping and assembling operations in the company.   Responsibility and right: the production department is responsible for the crimping and assembly of wire rod; the quality control department is responsible for the inspection after assembly.   Operation process and requirements:   1. During the assembly operation, first confirm whether the material (wire rod, rubber shell) model is used correctly, and whether it is consistent with the corresponding drawings and templates. If it cannot be confirmed, it is necessary to report to the stretcher for confirmation, and formal operation can be carried out only after it is correct.   2. When assembling, take the rubber shell with the left hand and a matching terminal line with the right hand. After confirming the normal and insertion direction of the terminal shrapnel, fix the angle and direction of the terminal with the right thumb and index finger, and push the bottom of the acupoint of the rubber shell directly and evenly with light force until the terminal shrapnel hooks the checkpoint in the rubber shell (under normal circumstances, you can hear a click, and feel on the hand) Insert in place. The following picture: 3. During assembly, after inserting a terminal line into the rubber shell, it must be pulled back immediately to see whether the terminal is inserted in place. If the terminal spring catches the clamping point of the rubber shell, it will not come back. Otherwise, during electrical measurement and use, the terminal that is not inserted in place will come back, affecting the use performance of power on and so on. The following picture:   4. When assembling, to prevent the terminal from being inserted reversely as a whole, it is necessary to locate the direction of the rubber shell and the sequence of the terminals. As shown in the picture: 5. When multiple single core wires are inserted into the multi hole position, each person can only insert one hole position at a time. According to the requirements of the line sequence in the engineering drawing, the assembly of a multi hole rubber shell shall be completed in turn to prevent the wire from being inserted out of place.

  1. Antenna Function   Antenna is one of the most critical components in radar system, which is used to transmit or receive electromagnetic waves. It has the following basic functions:   The energy at the transmitter is converted into spatial signals with the required distribution and efficiency. This process is applied to the receiver in the same way. The signal has a certain pattern in space. Generally speaking, the azimuth angle should be narrow enough to provide the required azimuth resolution and the frequency required for target position updating. When the antenna scanning mode is mechanical scanning, it is equivalent to rotational speed. Considering that a radar antenna needs a reflector with a large size and a weight of several tons in a certain frequency band, high speed may bring an important mechanical problem. High precision direction finding.   Antenna structure must ensure that the antenna works under any environmental conditions. Radomes are usually used to protect antennas in relatively harsh environments.   The basic performance of radar is proportional to the product of antenna area or aperture and average transmit power. Therefore, the input in antenna can bring significant effect on system performance.   Considering these functions and the efficiency required by the radar antenna, there are usually two ways:   parabolic dish antenna array antenna     2. Antenna characteristics   2.1 Antenna Gain Antenna gain is an important characteristic when antenna is used for transmitting or receiving purposes alone. Pic 1 Spherical radiation of an isotropic radiator   Some antennas emit energy uniformly in all directions. This radiation is called isotropic radiation. We all know that the sun radiates energy in all directions. The energy radiated from the sun is approximately the same at any fixed distance and at any angle.   Suppose a measuring device moves around the sun and stops at the point shown in the figure to measure radiation. At any point in the circle, the distance from the measuring device to the sun is the same. The measured radiation will also be the same. Therefore, the sun is considered to be an isotropic radiator. Pic 2 Radiogram of dipole antenna   2.2 Antenna pattern   Most radiators emit more radiation in one direction than in another. A radiator like this is called an anisotropic radiator. However, a standard method is used to mark the radiation around the radiation source, so that one radiation pattern can be easily compared with another.   The energy radiated from the antenna forms a field with a certain radiation pattern. Radiogram is a method of drawing radiated energy of antenna. This energy is measured at different angles at a constant distance from the antenna. The shape of the pattern depends on the type of antenna used.   To draw such a pattern, two different types of graphs, rectangular coordinates and polar coordinates, are usually used. Polar coordinate maps have proved to be of great use in the study of radiation maps. In polar coordinates, points are located by projecting along the axis of rotation (radius) to an intersection point with several concentric equally spaced circles. The polar coordinates of the measured radiation are shown in Pic. 3. Pic DIRECTION PATTERN IN POLAR COORDINATES   The main lobe, the area around the direction of maximum radiation (usually within 3dB of the peak value of the main wave). The main wave direction in Fig. 3 is northward.   Side valve, smaller valve away from main valve. These sidelobes are usually radiated in an undesirable direction and can never be completely eliminated. Sidelobe level is an important parameter for characterizing radiation patterns   Rear lobe, which is part of the radiation opposite to the direction of the main beam.  

How should RF connectors be maintained and maintained? Regular cleaning of RF connectors and proper use of the connectors will often prolong the service life of the connectors. We know that every company will unplug connectors when using equipment. At this time, it is very important to maintain and maintain RF connectors. A good connector will also lead to performance degradation due to poor daily maintenance, resulting in economic losses and other adverse factors. So how to do a good job of connector maintenance? Let's take a look at RY's summary.   All RF connectors used in PIM testing, including test adapters, test cable components, test loads and all RF connectors on the tester, must be clean and reliable to ensure that the PIM test results of the tested parts are accurate and reliable. 1. Clean RF connectors regularly to ensure consistency in connection.   2. Make sure that the connector is in place and then tighten the nut. First make preliminary locking with hand, then use moment wrench to achieve the required moment.   3. Remove O-rings from all test adapters and cable assemblies before testing. This will reduce the torque required for tight connections with low PIM and extend the service life of connectors. (Please don't remove the O-ring on the jumper line.)   4. All connections require torque wrenches, and 7/16 connections require 20-25N.m torques. Please note that when tightening the connector, do not rotate the connector body (the second wrench should be used to fix the connector body).   5. When the connector is not working, it is necessary to ensure that there are protective caps at the interface. The number of RF connectors is limited. The typical value is 500 plugs. Because PIM test is very sensitive, the number of RF connectors may not be reached, so we need to have extra connectors, adapters and cable components.

Warm congratulations on the 70th anniversary of the founding of the People's Republic of China。  

1. Test with TDR method, real-time domain reflection.   2. Time-Domain Reflectometry (TDR) technology. The technology includes the generation of time step voltages propagating along transmission lines. The reflection from impedance is detected by oscilloscope, and the ratio of input voltage to reflection voltage is measured to calculate discontinuous impedance.   3. Data measured by network analyzer in frequency domain can be used to calculate and display network step and impulse response as time function. The traditional TDR capability in reflection and transmission increases the potential for measurement in band-limited networks. In reflection mode, the network analyzer measures the reflection coefficient as a frequency function. The reflection coefficient can be regarded as a transfer function of the incident voltage and the reflected voltage. The inverse transform transforms the reflection coefficient into a time function (impulse response). The step and impulse responses can be calculated by convolution of the reflection coefficient with the input step or pulse. In transmission mode. The network analyzer measures the transfer function of a two-port device as a frequency function. The inverse transformation transforms the transfer function into the impulse response of a two-port device. The step and impulse responses are calculated by convolution of the impulse response with the input step or pulse.

The radio frequency coaxial connector is generally considered to be a component mounted on cables or instruments.Use is the transmission line electrical connection or separation. At present, the classification of connectors on the market is very complicated. There are more than 20 international general series and more varieties and specifications.Faced with such a complex product, customers in how to choose it, the next RY' Electronics Engineer will give you a detailed description of the company's product application shooting. How to choose the frequency coaxial connector?   To find a product that suits you, It's time to learn about the classification and application of RF coaxial connectors. RY connectors are summarized as follows: BNC is a card type, mostly used for less than 4 GH radio frequency connection, widely used in instrumentation and computer internet. TNC is a threaded connection, similar to BNC in size and other aspects. Its working frequency can reach 11 GHz. Thread type is suitable for vibration environment. SMA is a threaded connection with the most widely used impedance of 50 ohm and 75 ohm. When 50 ohm is used, the frequency of soft cable is less than 12.4 GHz, and semi-rigid cable is the most. Up to 26.5 GHz. SMB is smaller than SMA, for inserting self-locking structure, used for fast connection, often used in digital communications, 50 ohms can reach 4 GHz, 75 ohms to 2 GHz. SMC is threaded connection, other similar SMB, has a wider frequency range, often used in military or high vibration environment. N-type connectors are threaded, air as insulation material, low cost, frequency up to 11 GHz, commonly used in testing instruments, there are 50 and 75 ohms. MCX and MCX connectors are small in size and are used for intensive connections.

1) Terminals Type   Nowadays, there are up to 2000 kinds of terminals for automobile wiring harness, including battery terminals. In addition, it will continue to increase in the future. These can be classified as follows.   (1) Sockets and plugs   Most terminals are mosaic terminals. That is to say, there are docking terminals, and only when they are combined with each other can they function. The name of such terminals must be marked with F or M (domestic 2 or 1). (2) End conveying and side conveying   According to the terminal state before pressing, it can be divided into chain terminal and bulk terminal. Chain terminals are terminals linked together in a chain and rolled into terminal rolls, which are cut off at the same time when pressed. Bulk terminals are things that are cut off and bundled one by one in advance in terminal manufacturing engineering.   Chain terminals can be divided into end and side transports.   (3) Classification by size   Chimeric terminals are sometimes classified according to the width of the chimeric part of the male terminal (the plate part in contact with the female terminal). For example, when DJ 621-D6.3A, the joint is about 6.3mm. (4) Classification according to the purpose of use   Most terminals are generic, but there are also things that determine how to use them from the beginning. Here are a few examples. 2) Name and function of each part of terminal   The following table summarizes the names and functions of each part of the terminal. In the management of crimping, it is necessary to know the function and importance of each part of the terminal, so I hope to fully understand.   3) About Pressing Joints   In automobile harness, the connection of wire and terminal is mostly pressure type connection, which is called "press connection". The advantage of crimping is mass production. By using interlocking terminals and automatic crimping machine, a large number of uniform quality products can be manufactured quickly, but also because of a little error, a large number of defective products will be created.   4) Three major management projects of crimping   In the management of the quality of press joints, the three management items of press joints, namely, height management, tension management and appearance management, are called the three main management items of press joints.   1) Why is it necessary to manage the crimping height? This is the most important management project in the execution of crimping operations. Electrical flow through the wire through the terminal to the other terminal, wire, to connect the wire and terminal is the role of pressing. If the crimping is not at the specified height, the electricity may not flow from the wire to the end, or be broken by external forces. In order to ensure the best crimping performance, the crimping height is set. If it exceeds the specifications, the engine will not be able to start, and in serious cases, it will cause fever, shell melting, automobile combustion and other serious accidents.   2) Why is tension management necessary? The crimping height is guaranteed by the tensile strength. The tension test is fully carried out in the technical management department of the Ministry of Production and Technology. The best pressure joint height is set as the specification value, but when the blade is worn and the wrong blade shape is installed, it can not be found only by the pressure joint height sometimes, so tension confirmation should be carried out to ensure the pressure joint.     Intelligent tension tester can measure the pressure height and pull force at the same time. The test data need not be recorded manually and can be saved automatically.   3) Why is appearance management necessary? In addition to the pressing part, there are chimeric parts, buckles, stabilizing devices and other important parts on the terminal. Only the quality of the press joint can be managed through the management of press height and tension. In addition, even if the crimping height, tension and specifications are the same, the quality can not be guaranteed well without good crimping core wires and wire skins. Therefore, the appearance management is carried out.   (1) Confirmation of chimerism The chimeric part plays an important role in connecting terminals and terminals. Terminals are guaranteed by the supplier and manufacturer when they are in stock, but once they are pressed, they will be guaranteed by everyone. If the deformation is not good, the terminal and terminal can not be chimerized, which will cause the same serious defects as the bad crimping height.   (2) Poor crimping of core and insulation crimping The pressing state of core wires and barrels can also cause significant adverse effects. Compared with the normal number of core wires, even if one core wire is broken, the normal crimping height will become the same state as the crimping height (loose). In addition, under the condition of wrapping the sheath into the core wire crimping part, the crimping will become the same state as when the crimping height is low (tight). In a word, it must be bad crimping height.   (3) Terminal Deformation When the terminal is deformed up and down or twisted side, it will lead to bad insertion and serious unhealthy nailing. The plug will have bad chimerism and nail removal, and the socket will have bad nail removal. In particular, the deformation of the plug should be paid full attention to. Intelligent pressure management system uses pressure difference between good and bad products to detect all kinds of bad pressure joints. The operation is simpler than traditional pressure management, and the precision is higher than traditional pressure management. It supports the export of test data.