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Special connector product knowledge!pogopin company

source:pogo pin release time:2021-09-09 Article author:sznbone Popular:POGO PIN

  The selection of special electrical connectors includes the use of environmental conditions, electrical parameters, mechanical parameters, termination methods, etc. Correct selection is a prerequisite for good use, and correct use is also essential, and correct use is a guarantee The key to product reliability. We will provide users with high-quality products, but also hope that users choose and use our products well.

Special connector product knowledge!pogopin company(图1)

  1. Environmental conditions for use:

  1. Ambient temperature-refers to the environment in which the product works, and should be used within the ambient temperature specified by the product. Even if the external environment temperature is not high, if the product is working in the chassis, the poor heat dissipation conditions and the heating of other components will cause the ambient temperature of the product to be much higher than the external ambient temperature. Exceeding the specified ambient temperature will damage the metal plating or the insulator. At the same time, too low temperature will also cause the insulator to crack, which will eventually reduce the performance of the connector or lose its function.

  2. Moisture or water-Moisture or water will cause a water film to form on the surface of the insulator, which will reduce the insulation performance and even cause miscommunication between adjacent contacts. Generally, connectors that are used under high humidity or water conditions for a long time should use sealing connectors.

  3. Low air pressure: The air pressure will decrease under high-altitude conditions (except in the constant air pressure sealed chamber). When the product is under low air pressure conditions, the product's medium withstand voltage will drop. If the transmitted voltage is higher than the product technical conditions, there will be Electrical breakdown may occur, causing failure.

  4. Corrosive environment: refers to the atmosphere around the product, such as the sea with severe salt spray, the storage warehouse of chemical raw materials with severe acid and alkali, etc. These conditions will cause corrosion and erosion on the metal parts of the connector, insulators, etc., when selecting You should pay attention to special requirements to the manufacturer or choose products that can meet your requirements. At the same time, it should also be noted that the plastic parts of some connectors are not resistant to solvents such as banana water, benzene, acetone, etc. Please pay attention to the regulations in the product catalog.

  5. Mechanical conditions: refers to the mechanical effects of vibration, impact, collision, acceleration, etc., which are selected according to the parameters in the product sample. Generally speaking, the mechanical parameters of twist needles in similar products are relatively high and easy to guarantee. Note that in actual use, after the cable and the contact are terminated, the cable should be fixed by a clamp or other means. The cable that is too long and has no fixing measures will endanger the cable under external effects such as vibration or shock. In severe cases, it will cause damage to the connector and cable breakage.

  2. Termination method

  Termination mode refers to the way the cable is connected to the connector. Generally, there are multiple types. The selection should be based on the actual conditions of use, reliability and other requirements and existing conditions.

  a. Crimping: high mechanical strength, good environmental resistance, good electrical performance, high reliability, but poor flexibility, suitable for occasions where the cable properties have been determined;

  b. Winding: A special winding gun or special equipment is required to complete the termination, and the reliability is high;

  c. Piercing: Mainly used for ribbon cables in printed boards, no need to wire, low cost, but the specified wire gauge must be used;

  d. Welding: It is easy to form false welding that is not easy to check due to welding method, weldability and other reasons, but it has the advantages of high flexibility and simple operation. Crimping and winding are relatively reliable termination methods and are recommended.


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