Why connectors use contact plating

Connector as an important part of the electronic components industry, most of its surface has a special layer of plating, so what is the significance of this special layer of plating? It not only protects the connector against corrosion, but also enhances the connector's durability and resistance to wear.1. Corrosion protection; for the connector should be the first thing to consider is the problem of corrosion. This is because most of the connector contact shrapnel are made of copper alloy, in the working process is very easy to be corroded. The role of the contact plating is to separate the contact shrapnel and the working environment, to prevent copper corrosion. 2. help improve mechanical properties. Parameters related to mechanical properties are mainly factors that affect the durability or wear and tear of the plating, as well as the fit. Is under the same basic effect of the two different views, that is, multi-point contact interface in the process of relative movement of cold welding share. The most important mechanical properties include hardness, ductility and coefficient of friction of the plating material. All these properties depend on the intrinsic properties of the plating material and its multi-application of the work process.3. Contribute to the improvement of electrical performance; for the optimization of electrical performance can be optimized from the following aspects, that is, on the existing and will be formed on the surface of the contact plating film is located in the control. Electrical connector electrical performance of a major need is to establish and maintain a stable connector impedance.

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