Connector terminals are generally made of brass or phosphor bronze, but copper is easy to oxidize in the air, and it is easy to react with sulfide in the air to generate black copper sulfide, which increases the contact resistance or causes contact failure in wet environment.
So in the production process through high-speed punch molding after rolling and then to electroplating, according to the performance requirements of the surface coating material and thickness are different, different plating material and coating thickness also directly affect the cost of the connector terminal. Common electroplating types are gold plated, nickel plated, silver plated, tin plated, etc
Gold-plated cost is more expensive, generally on the power supply and signal transmission requirements of higher products will be selected, its contact stability wear resistance
Nickel plating is optional, high hardness, good chemical stability and high utilization rate, but the weldability is slightly poor
Silver plating can improve conductive contact impedance and signal transmission (silver is better, easy to oxidize, and also conductive after oxidation)
Taking into account the advantages of weldability, anti-sulfide and anti-oxidation, it can not change color for a long time in the air, and the electroplating cost is relatively low, so it is widely used.
Zhejiang Lianhe Electronics Co., Ltd. selects experienced and guaranteed electroplating manufacturers in the electroplating process, so as to ensure the thickness error of connector terminal coating. 0.01U “, batch no color difference, coating adhesion, low temperature resistance oxidation resistance contact stability, good yield >99.9%.Welcome to contact us at any time purchase.
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