Automobile connectors are electromechanical components that connect electrical circuits. Therefore, the electrical parameters of the connector itself are the first thing to consider when selecting the connector. Correct selection and use of electrical connectors is an important aspect to ensure circuit reliability.

In essence, the connector is composed of two parts, namely, the plug-in and the connector, which can be completely separated under normal conditions. Some of the technical indicators of the connector are similar to those of the switch, such as contact resistance, insulation resistance, withstand voltage, torque and service life.

From its universality and relevant technical standards, connectors can be divided into the following categories (divided into categories of automobile connectors):

① Low frequency circular connector;

② Rectangular connector automobile connector;

③ Printed circuit connector;

④ RF coaxial connector;

⑤ Automobile connector.

Because there are so many kinds of automobile connectors that people can't remember them, it is very important to choose a suitable automobile connector. Automobile connectors have different classification methods. If they are classified according to the frequency they emit, we can divide them into high-frequency connectors and low-frequency connectors. When we buy our own car, we should first look at the electrical parameters of the car connector. The most important thing is the rated voltage of the car connector. The rated voltage is also called the working voltage. It mainly depends on the insulating material used to connect the machine and the spacing between the contact pairs. Some components or devices may not be able to complete their functions when their voltage is lower than their rated voltage. In today's society, the role of automobile connectors is becoming more and more important, so we must carry out regular maintenance.