The main electrical properties of connectors include contact resistance, insulation resistance and electric strength.

▶Contact resistance:

High quality electrical connectors should have low and stable contact resistance. The contact resistance of connectors varies from a few milliohms to tens of milliohms.

▶Insulation resistance:

A measure of the insulation performance between the contacts of an electrical connector and between the contacts and the shell, ranging from hundreds of megohms to several gigaohms

▶Electrical strength or withstand voltage, dielectric withstand voltage：

It characterizes the ability of the connector to withstand the rated test voltage between the contacts or between the contacts and the shell.

▶Other electrical properties：

Electromagnetic interference leakage attenuation is to evaluate the electromagnetic interference shielding effect of the connector, and the electromagnetic interference leakage attenuation is to evaluate the electromagnetic interference shielding effect of the connector, which is generally tested in the frequency range of 100MHz~10GHz. , insertion loss, reflection coefficient, voltage standing wave ratio (VSWR) and other electrical indicators. 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 appeared. Correspondingly, in terms of electrical performance, in addition to characteristic impedance, some new electrical indicators have also appeared. , such as crosstalk (crosstalk), transmission delay (delay), time delay (skew) and so on.