In order to improve the life touch switch used, the selection of high-quality touch switch becomes very important. Touch the switch contacts general look is our common approach in the selection of a touch switch, here to tell you a few selected high-quality touch switch approach.
　　A touch switch selection method, first base for the pin, the pin touch switch substrate is brass and phosphor bronze (low level of iron), in order to reduce contact resistance, the pin is substantially silver-plated, silver in the case of air oxidation of SO2 can cause a direct impact on the switch contact resistance and weldability, so high-quality touch switch first base in place to control the thickness of the silver-plated and silver-plated pins workmanship .
　　Touch the switch selection method II, the factory inspection methods and projects also affect the quality of the final touch switches, such as the look, feel, conduction, resistance and other projects are sampling or seizure, such as some manufacturers claim rejection rate is PPM to measure or defect, it is necessary to set in after the factory inspection also set full inspection or sampling quality inspection processes. Touch switch selection method three, after having parts that ultimately affect the quality of the assembly process, assembly process depends on the production capacity of the company's management, staff quality and meaning and quality assurance capabilities and other factors, different ability to guarantee the quality of the final product certainly out different Now the market labor and machine assembly methods, because the current automation capabilities further enhance, and would therefore have advantages and disadvantages: low machine assembly costs but low product quality, high labor assembly costs but also high quality.
　　Four touch switch selection method, life and feel is in line with the decision of the stroke and touch switch shrapnel, and the longer the trip, the shorter the life of the lighter sound, the longer stroke and vice versa, at a fixed shrapnel craft situation, mainly to see the itinerary or a sound decision tact switch lifetime; in addition, a key factor in the decision shrapnel life or stamping techniques.
　　Touch switch selection method V. conduction reliability key factor is the structure of the contact point, because the function of touch switch contacts and shrapnel contact conduction, the contact point of the contact surface so the bigger the better, the contact surface of the structure decisions about the structure of the three markets, the pros and cons in the following order: big bubble (the crater-type), "O-type contact," Slotted "2-point contact" type bubble level "1-point contact."