Spring thimble connectors play a connecting role in electronic products and are used in aerospace, military, medical and other fields. Let's take a look at its performance together.
1. Basic performance
The basic performance of the connector is divided into mechanical performance, electrical performance and environmental performance.
2. Mechanical properties
The insertion force is an important mechanical property. Insertion and extraction force is divided into insertion force and extraction force (also called separation force), the requirements of the two are different. There are provisions for maximum insertion force and minimum separation force in the relevant standards. Therefore, from the perspective of use, the insertion force is smaller than the low insertion force LIF and the non-insertion force ZIF structure. If the separation force is too small, the contact will be reliable. Sex has an impact.
Another important mechanical property is the mechanical life of the connector. In fact, mechanical life is a durability index, which is called mechanical operation in the national standard GB5095. It uses one insertion and removal as a cycle, and whether the connector can normally complete its connection function (such as contact resistance) after the specified insertion and removal cycle is used as the source of judgment. The insertion and extraction force of the connector is related to the mechanical life, the structure of the contact (the magnitude of the positive pressure), the coating quality (the sliding friction coefficient) of the contact part, and the dimensional accuracy of the contact (alignment).
Three, electrical performance
Electrical performance The main electrical performance of the connector includes contact resistance, insulation resistance and dielectric strength.
1. High-quality electrical connectors with contact resistance should be equipped with low and stable contact resistance. The contact resistance of the connector ranges from a few milliohms to tens of milliohms.
2. Insulation resistance is a measure of the insulation performance between electrical connector contacts and between the contacts and the shell, and its magnitude ranges from hundreds of megohms to several thousand megohms.
3. Dielectric strength is also called withstand voltage and dielectric withstand voltage, which is the ability to withstand the rated test voltage between the connector contacts or between the contacts and the shell.