Electrical connectors are used for positioning joints on connectors that connect electronic circuits. They are composed of connectors and plug-ins. Therefore, connectors can also be directly understood as connectors.

In a sense, the reliability of the connector depends on the contact pressure of its contact pair. It is an important indicator that directly affects the contact resistance and the wear amount of the contact pair.

In most structures, it is quite difficult to directly measure contact pressure. Therefore, contact pressure connectors are usually measured indirectly through the separation force of a single pin. For circular pinhole contact pairs, a standard pin with a specified weight is usually used to test the ability of the female contact to withstand the weight. Generally, the diameter of the standard pin is male The lower limit of the contact diameter is -5μm. The total separation force is generally twice the sum of the upper line separation forces of the single legs. When the total separation force exceeds 50N, manual plugging and unplugging is quite difficult. Of course, for some test equipment or occasions with special requirements, you can choose to use zero insertion force connectors, automatic disconnect connectors, etc.