How to choose the best light-touch switch
 2019-12-29 9:28:49       乐清市金鼎电子科技有限公司

In order to improve the service life of the light-touch switch, it is very important to select the best light-touch switch. Look at the light touch switch contact is we in the selection of a light touch switch when a common method, the following elmer to introduce a few select high-quality light touch switch methods. Select the light touch switch method 1, first for the pin base material, the light touch switch pin base material for brass or phosphor copper low-grade for iron, in order to reduce contact resistance, the pin basically silver-plated treatment, for silver in the air SO2 gas will oxidize, it directly affects the solderability and contact resistance of the switch, so high-quality light-touch switch should first control the base material silver plating thickness and silver plating process in place. The selection of light-touch switch method 2. The method and items of ex-factory inspection also affect the quality of the final light-touch switch, such as whether the items such as appearance, feel, conduction and resistance are to be inspected by sampling or by full inspection, for example, some large factories require scrap rate is PPM to measure or zero defects, it is necessary to set up in the factory inspection after the overall inspection or quality inspection procedures. The final factor that affects the quality is the assembly process. The assembly process depends on the management ability of the production company, the quality of the staff and the quality assurance ability, the quality of the final product with different guarantee ability is different. Now the market assembling method has man-made and machine, because the present automation ability is improving again, so each has its own advantages and disadvantages: machine assembling cost is low but product quality is low, it's expensive to assemble by hand, but it's also high quality. Selection of light-touch switch method four, life and feel are decided by the stroke of light-touch switch and the cooperation of shrapnel. The shorter the stroke, the lighter the sound, the longer the life, and vice versa, the life of the switch depends mainly on the stroke or the sound; in addition, the key factor to determine the life of the shrapnel is the stamping technology. The key influencing factor of the conduction reliability is the structure of the contact point, because the function of the light-touch switch is to make contact and conduction between the contact point and the spring piece, then the bigger the contact surface of the contact point, the better, contact surface is decided by structure, there are three kinds of structures on the market, the order is as follows: big bubble crater type, "O type contact" , slot type "2 point contact" , flat bubble type "1 point contact" .