What is the cause of connector terminal pinback?

　 Electronic connectors are rich in variety, convergence is like a small ocean, in such an ocean of connectors, wiring harness connectors are more popular one, the product once the popularity of its derivatives around the problem is also more.

-Connector terminal back pin reasons: First, the wire gram connector terminal retention force failure factors: In most cases, the sheath terminal retention force failure is due to the design, manufacture and materials of the harness connector. Standard specification harness connector (specification pitch less than 2.8 connectors) insertion holding force is greater than 40N, while greater than 2.8 connectors insertion holding force is greater than 60N. Second, the wire gram connector terminal insertion interference factors: when the harness connector's male and female end in the process of insertion, due to the male end of the automatic insertion of the female end of the non-effective area, resulting in the withdrawal of terminal pins, resulting in loss of connector functionality . This situation is usually caused by problems in the design and manufacturing process, one is the structural design problems, the second is the terminal insertion and extraction problems.　　Third, the production process factors of the harness connector: the production process factors of the harness connector including terminal crimping problems and terminal assembly problems. If the terminals are not crimped properly, excessive bending will lead to the centerline of the terminal splice area and the crimp area is not parallel. In addition, excessive bending of the terminals tends to increase the insertion force and affect the assembly performance. In severe cases, the common terminal cannot be inserted into the effective area of the female terminal during the insertion process.

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