What is an electrical connector?

The so-called electronic connector is to use the connector to transmit electronic signals or electrical energy. For example, there are many connectors on the computer motherboard. The external to internal, for example, your USB interface, the power interface on the main chassis, It is a connector, just subdivided into a connector that is not the same. In the internal, the board and board connection, like the card slot of the graphics card, it is also the connector, the form should be called gold finger, the connector is widely used In various fields, such as automobiles, personal computers, industrial computers, communications, and many other fields.

The main power performance of power efficiency connectors includes contact resistance, insulation resistance and electrical strength. Contactors with high quality electrical connectors should have low and stable contact resistance. The contact resistance of the connector ranges from a few milliohms to tens of milliohms. Insulation resistance is a measure of the effectiveness of insulation between electrical connector contacts and between contacts and housing, in the order of hundreds of megaohms to several gigaohms. The electrical strength, or withstand voltage, and dielectric withstand voltage, characterize the ability to withstand the rated test voltage between the connector contacts or between the contacts and the housing.

Other power efficiency. Electromagnetic interference leakage attenuation is an evaluation of the electromagnetic interference mask effect of the connector. The electromagnetic interference leakage attenuation is an evaluation of the electromagnetic interference mask effect of the connector, and is generally tested in the frequency range of 100 MHz to 10 GHz. For RF coaxial connectors, there are also power ratings such as characteristic impedance, insertion loss, reflection coefficient, and voltage standing wave ratio (VSWR). Due to the development of digital technology, in order to connect and transmit high-speed digital pulse signals, a new type of connector, namely high-speed signal connector, has emerged. In addition, in terms of power efficiency, in addition to characteristic impedance, some new power places have appeared. Such as crosstalk, transmission delay, skew, etc.