Why is the pin socket made of elastic copper alloy and the surface should be plated with gold?

Most pin sockets are machined from elastic copper alloy materials with good electrical conductivity, and the surface is plated with silver and gold to achieve the purpose of low contact resistance and anti-corrosion. There are generally split slot jacks, wire spring jacks, crown spring jacks and punched jacks. More about pin jack related products Baidu search-Dongguan Jingcheng Industry, hope to help you!