Material Selection For Push-button Terminal Connectors: Corrosion Resistant

Different alloy compositions can be tailored to specific operating conditions to adjust performance response. For example, copper-based alloys offer a balance of conductivity and corrosion resistance at contact points, reducing metal changes caused by environmental factors. The alloys have a low coefficient of thermal expansion, maintaining geometric stability under repeated thermal cycling, ensuring consistent mechanical contact in the push in terminal block wire connector configuration.

In the production of the push in wire terminal block, in addition to the selection of the base metal, surface treatments such as plating are often employed to extend the service life of the push fit terminal block connector. Tin, nickel, or other precious metal plating forms a protective layer on the copper or copper alloy surface, providing additional oxidation resistance to the electrical contact surfaces of the terminals.