What factors are affected by touching the quality of the switch?

As we all know, it is hidden under the seemingly inconspicuous shape of the lighting switch is huge practical value. When we use light touch switches, we not only experience its excellent conductive performance, convenient control methods, etc., but also experience its comfortable keys. As for touching the switch itself, it has a precise structure, material, process, etc., so among the many factors, what affects the comprehensive quality of the touch switch? Take a look.

For touch switches, the material and coating of the shifts and contacts are the most critical. The materials and processes of shifts and contacts need to consider not only their electrical performance, but also the problems of their service life. Under normal circumstances, in order to reduce the contact resistance of the shot and contact, the material of the brass or phosphorus copper is used, and the electroplating is a silver -plated layer. If it is an iron pin, silver plating can isolate the SO2 gas in the air to keep it away from the corrosive element; but the corrosion time is short. And the pin with brass or phosphorus copper will be better. Therefore, the thickness of the material and silver -plated layer and its process treatment have become the key to determining the comprehensive performance of the pin. In today's market, the most high -quality silver -plated thickness in the market is above 0.3 microns. Three times the gap. The silver -plated process also has a lot of influence. Some pins are directly silver -plated, while some use a multi -layer electroplating process, first nickel plating or pre -copper, and so on.