As is well known, beneath the seemingly inconspicuous appearance of a tactile switch lies enormous practical value. When we use a tactile switch, we not only experience its good conductivity and convenient control method, but also its comfortable button feel. For the tactile switch itself, it has excellent construction, materials, craftsmanship, and so on. So, among the many factors, what affects the comprehensive quality of the tactile switch? Let's learn about it together.

For a tactile switch, the material and coating of its springs and contacts are crucial. The material and process of shrapnel and contacts not only need to consider their electrical performance, but also need to take into account their service life. In general, brass or phosphor copper materials are often used to reduce the contact resistance between the shrapnel and the contacts, while electroplating is done with a silver plating layer. If encountering iron pins, silver plating can isolate SO2 gas in the air, keeping it away from corrosive elements; But the anti-corrosion time is relatively short. Using brass or phosphor copper pins would be even better. Therefore, the material and thickness of the silver plating layer, as well as its processing technology, become the key factors determining the overall performance of the pins. In today's market, excellent silver plating thicknesses on the market are above 0.3 microns, which can even widen the gap by three times compared to inferior thicknesses. The silver plating process also has vastly different effects. Some pins are directly silver plated, while others use multi-layer electroplating processes such as nickel plating or pre copper plating.

Next is the conductivity of the tactile switch. Because in terms of physical structure, a tactile switch relies on spring plates and contacts to conduct, the key to its impact lies in the construction of the contact points. Generally speaking, the larger the contact surface, the better, and a cross shaped contact surface for the touch switch contact is a better choice.