The basic performance of connectors can be divided into three categories: mechanical performance, electrical performance and environmental performance. Another important mechanical property is the mechanical life of the connector. Mechanical life is actually a durability indicator. It takes one engagement and separation as a cycle, and judges whether the connector can normally complete its connection function after the specified engagement and separation cycle.

1. Mechanical properties As far as the connection function is concerned, the plugging force is an important mechanical property. The pull-out force is divided into the insertion force and the pull-out force (the pull-out force is also called the separation force), and the requirements of the two are different. In the relevant standards, there are provisions for the maximum insertion force and the minimum separation force, which means that from the point of view of use, the insertion force should be small (thereby a structure with low insertion force LIF and no insertion force ZIF), and if the separation force is too small, will affect the reliability of the contact. The pull-out force and mechanical life of the connector are related to the contact structure (positive pressure), the coating quality (sliding friction coefficient) of the contact part, and the dimensional accuracy (alignment) of the contact arrangement.

2. Electrical properties The main electrical properties of connectors include resistance, insulation resistance and strength against.

3. Environmental performance Common environmental performance includes temperature resistance, humidity resistance, salt spray resistance, vibration and shock, etc.