Connectors are also called connectors, which generally refer to electrical connectors. Those used in automobiles are called automobile connectors. Automobile connector is mainly used to connect two active devices to transmit current or signal.

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.

Product category of connector

There are only two basic classification methods for connector product categories:

① Structure by shape: circular and rectangular (cross section);

② According to the working frequency: low frequency and high frequency (bounded by 3MHz).

According to the above division, the coaxial connector is circular, the printed circuit connector is rectangular, and the current popular rectangular connector has a trapezoidal section, which is similar to a rectangle. The frequency division of low frequency and high frequency with 3MHz as the boundary is basically the same as that of radio waves.

As for others, they can be divided into many different types according to use, installation mode, special structure, special performance, etc., and often appear in publications and manufacturer's promotional materials. However, generally, they are only to highlight a certain feature and use, and the basic classification still does not exceed the above classification principles.

Considering the technical development and actual situation of connectors, from its universality and relevant technical standards, connectors can be divided into the following categories:

① Low frequency circular connector;

② Rectangular connector;

③ Printed circuit connector;

④ RF coaxial connector;

⑤ Optical fiber connector.