Investigation on Contact Resistance of Connector Based on FEM

Due to the widespread use of electrical connectors while the lack of relevant in-depth theoretical models for contact states of them, this paper has investigated the electrical contact situations in contactor by establishing the theoretical model of a typical electrical connector-Subminiature version A (SMA), and used the finite element method (FEM) to analyze the actual contact state, including its contact potential distribution and the structural influence on resistance.