Why do terminal connector pins need to be electroplated? Generally speaking, the material of terminal connector pins is copper alloy, and although copper's chemical properties are not as active as aluminum, iron, magnesium, etc., pure copper is easily oxidized when in contact with oxygen in the presence of water; Due to the presence of oxygen and water vapor in the air, pure copper surfaces undergo oxidation reactions quickly upon contact with air! Therefore, it is necessary to electroplate the terminal connector pins!

　　The difference between silver plating/gold plating on terminal connector pins

　　Advantages of gold plating: The gold plating layer has strong hardness and is resistant to insertion and removal;

　　Disadvantages of gold plating: expensive;

　　Advantages of silver plating: Silver can enhance the current carrying capacity of pins and is inexpensive;

　　Disadvantages of silver plating: easy to corrode and turn black, not resistant to insertion and removal;

　　As for the choice of terminal connector pins, are there options for gold plating and silver plating? This depends on the specific application scenario. If it is mainly used in signal transmission, frequent plugging and unplugging are necessary, and gold plating is a reasonable choice;

　　When used in power or electrical fields, it is not frequently plugged in and unplugged, and requires high current carrying capacity. Choosing silver plating is more reasonable.