Connector three basic performance

Electronic connector is an indispensable part of electronic equipment, whether in life or in industrial production has a wide range of applications, it can be said that there is no electronic connector, there is no colorful modern life.

The main function of the electronic connector is to build a bridge of communication between the blocked or isolated circuits in the circuit, so that the current flows and the circuit realizes the predetermined function. Electronic connectors greatly facilitate the assembly of products, in a variety of maintenance and replacement, but also to bring benefits and convenience. Therefore, although we rarely see electronic connectors with the naked eye, we are often served by electronic connectors.

The materials used to make electronic connectors generally include materials that can be insulated, such as plastic, and also some conductor materials, such as phosphor bronze or brass. Of course, this part can also be made of some plastic materials. And different materials, the quality of the products made is also different, each has its own characteristics. Therefore, when we choose electronic connectors for different uses, we must choose the right product according to the specific situation.

As far as the connection function is concerned, the insertion force is an important mechanical property. Insertion force is divided into insertion force and pull-out force (pull-out force also known as separation force), the requirements of the two are different. There are provisions for maximum insertion force and minimum separation force in the relevant standards, which indicates that from the point of view of use, the insertion force is small (thus having a structure with low insertion force LIF and no insertion force ZIF), and if the separation force is too small, it will affect the reliability of the contact. The insertion force and mechanical life of the connector are related to the coating quality (sliding friction coefficient) of the contact part of the contact structure (positive pressure) and the dimensional accuracy (alignment) of the contact arrangement. 2. Electrical performance

The main electrical properties of the connector include contact resistance, insulation resistance and electrical strength.

A high-quality electrical connector should have a low and stable contact resistance. The contact resistance of the connector varies from a few milliohms to tens of milliohms.

② Insulation resistance is an indicator of the insulation performance between the contacts of the electrical connector and between the contacts and the housing, ranging in magnitude from hundreds of megaohms to several gigaohms.

The electrical strength or withstand voltage, dielectric withstand voltage, is the characterization of the connector between the contact or contact and the shell between the rated test voltage tolerance capacity. ④ Other electrical properties.