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    Selection of metal push button switch

     The waterproof metal push button switch is a pin substrate, the metal push button switch has a lead substrate of brass or phosphor bronze (low grade iron), and the metal push button switch reduces the contact resistance and the pins are substantially silver plated.

    For the silver, the SO2 gas in the air will oxidize, directly affecting the solderability and contact resistance of the switch, so the high-quality ultra-thin metal push button switch must first be carried out on the silver plating thickness of the lead substrate and the silver plating process. The control is in place, the order of the metal push button switch is as follows: large bubble (crater type) "O-type contact", slotted type "2 point contact", flat bubble type "1 point contact",

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