Electrical performance of heavy-duty connectors
The main electrical properties of heavy duty cable connectors include contact resistance, insulation resistance and dielectric strength.
Contact resistance High-quality heavy power connector should have low and stable contact resistance. The contact resistance of heavy duty wire connectors ranges from a few milliohms to tens of milliohms.
Insulation resistance is an indicator of the insulation performance between wire connector heavy duty contacts and between contacts and the shell, and its order of magnitude ranges from hundreds of megohms to thousands of megohms.
Dielectric strength, also known as withstand voltage or dielectric withstand voltage, is the ability to characterize the ability of heavy duty electric cable connectors contacts or between contacts and the shell to withstand the rated test voltage.
Other electrical properties. Electromagnetic interference leakage attenuation is used to evaluate the electromagnetic interference shielding effect of heavy duty automotive electrical connectors, and electromagnetic interference leakage attenuation is used to evaluate the electromagnetic interference shielding effect of heavy duty 12v connectors, which is generally tested in the frequency range of 100MHz~10GHz. For RF coaxial connectors, there are also electrical indicators 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. Correspondingly, in terms of electrical performance, in addition to characteristic impedance, some new electrical indicators have also emerged, such as crosstalk, transmission delay, skew, etc.
