The role of plating on connectors
Dec 30, 2022
Connectors are important parts in the electronic components industry. It is not difficult for electronic engineers and technicians to find that most connectors are coated with a special coating. Most people have a common question in mind, what is the special significance of plating connectors? The connector's contact coating not only protects the connector from environmental corrosion, increases the connector's durability and resistance to wear, it also helps establish and maintain a stable connector impedance from an electrical standpoint. The specific performance is as follows:
1, connector coating anti-corrosion function
The first consideration for connectors is corrosion protection. Most electrical connector contact shrapnel is made of copper alloys, which are susceptible to corrosion, such as oxidation and vulcanization, in the typical electrical connector operating environment. In fact, the contact coating is used to seal the contact shrapnel from the working environment to prevent copper corrosion. Of course, the coated material must not be damaged (at least to the extent that it is harmful) in its working environment. As an important function of corrosion protection, interface optimization is a consideration in selecting suitable contact coating materials.
2. Connector coating helps to improve mechanical properties
The parameters related to mechanical properties are mainly the factors affecting the durability or wear of the coating and the combining ability. These factors to be considered are two different views under the same basic effect, that is, the sharing of cold welding in the process of relative motion of the multi-point contact interface. The most important mechanical properties include hardness, ductility and friction coefficient of the coated material. All these properties depend on the intrinsic properties of the coating material and the working process used.
3, connector coating helps to improve electrical performance
Electrical performance can be optimized in terms of the control of existing and to be formed films located on the surface of the contact coating. Electric connection
