Why should the spring probe be plated with gold?

Gold plating of spring probe is beneficial to increase conductivity and realize stable connection. However, pogopin is a multi-component structure, which is composed of needle, needle tube and needle tail. It is difficult to control the thickness of gold plating, and it is easy to cause current attenuation when large current is transmitted, and the overcurrent is small, only1a. The elastic micro-needle module, which has the same function as the spring probe, has strong overcurrent ability under high current, can play a stable transmission and has good conductivity in the range of 1-50A. The integrated structure is evenly plated with gold, and the average service life after hardening treatment can reach more than 20w times, and it can maintain stable connection in the testing of mobile phone batteries, screens and cameras.