As we all know, the seemingly inconspicuous shape of the tact switch is implied by great practical value. When we use the tact switch, we not only experience its excellent conduction performance, convenient control, but also the comfortable button feel. For the tactile switch itself, it has a precise structure, materials, processes, etc. So among the many factors, what affects the overall quality of the tact switch? Take a look.

　　For tact switches, the material and plating of the shrapnel and contacts are the most critical. The material and process of the shrapnel and contacts need not only take into account their electrical performance, but also take into account the problem of their service life. In general, in order to reduce the contact resistance between the shrapnel and the contact, a brass or phosphor bronze material is used, and the plating is a silver plating layer. If it is a ferrous pin, silver plating can block the SO2 gas in the air away from the corrosive elements; but the corrosion prevention time is shorter. Pins using brass or phosphor bronze will be even better. Therefore, the thickness of the material and the silver plating layer and its processing become the key to determining the overall performance of the pin. In today's market, the highest quality silver plating on the market is above 0.3 microns, and even the inferior thickness can be opened. Three times the gap. The silver plating process also has a wide range of effects, some of which are directly silver plated, while others use a multi-layer plating process, first nickel or pre-copper.

Finally, the turn-on performance of the tact switch. Because the physical structure, the tact switch is turned on by the shrapnel and the contact, the key to its influence is the construction of the contact point. Generally speaking, the larger the contact surface, the better, and the touch switch contact of HRO Hanrong is the best choice for the cross type contact surface.