What factors affect the quality of light touch switch?

2022/4/8
As we all know, the seemingly insignificant shape of the touch switch implies great practical value. When we use the touch switch, we not only experience its excellent conduction performance and convenient control mode, but also experience its comfortable touch of keys. For the light touch switch itself, it has precise structure, material, technology and so on. Among the many factors, what affects the comprehensive quality of the light touch switch? Let's get to know.

What factors affect the quality of light touch switch?



For the light touch switch, the material and coating of shrapnel and contact are the most critical. The material and process of shrapnel and contact need to consider not only its electrical performance, but also its service life. Generally, in order to reduce the contact resistance between shrapnel and contact, brass or phosphor copper is used, and the electroplating is silver plating. In case of iron pins, silver plating can isolate SO2 gas in the air and keep it away from corrosive elements; However, the anti-corrosion time is short. The use of brass or phosphor copper pins will be better. Therefore, the material, the thickness of silver plating layer and its process treatment have become the key to determine the comprehensive performance of pins. In today's market, the most high-quality silver plating thickness in the market is more than 0.3 microns, which can even triple the gap with the poor thickness. The silver plating process also has thousands of different effects. Some pins are directly silver plated, while some adopt multi-layer plating process, such as nickel plating or copper pre plating.
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