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Mechanical properties of the connectors
Nov 02, 2018

Mechanical properties As far as the connection function is concerned, the insertion and extraction force is an important mechanical property. The insertion and extraction force is divided into insert force and pull output (pull force also known as separation), the requirements of the two are different.

The maximum insertion force and minimum separation force provisions in the relevant standards indicate that, from the point of use, the insertion force is small (thus having a low insertion force lif and a non-insertion force ZIF structure), and if the separation force is too small, it will affect the reliability of the contact. Another important mechanical property is the mechanical life of the connector. Mechanical life is actually a kind of durability (durability) indicator, in the national standard GB5095 called it as mechanical operation. It is based on one insertion and one pull-out for a cycle, in order to be able to properly complete the connection function (such as contact resistance value) after the specified plug-and-draw cycle. The mating force and mechanical life of the connector are related to the quality of the coating (sliding friction coefficient) and the contact arrangement dimension accuracy (alignment) of the contact part structure (positive pressure size).