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The membrane switch also known as touch keyboard adopts the whole sealed structure assembled by multi-layer plane surface. It is a new type of electronic component integrating optical, mechanical and electrical technology, and sealing together key switch, panel, mark, symbol display and lining board. As a fundamental innovation to the visible structure of electronic product, it is able to replace the buttons of conventional discrete components and operate the systems more reliably. The application is very wide for the membrane switch, there are microwave oven , induction cooker , fitness equipment ,foot meter , water dispenser , physiotherapy equipment , network switch etc. Technical parameter:Rated power:YBK series35V (DC),100Ma, 2.5-5WRBK series30V (DC),50Ma, 1WLoop resistanceYBK series≤10ΩRBK series100Ω-500ΩInsulation resistance500MΩ(DC,100V)Dielectric strength≥1000VOperating force80-350g/cm2Load switch lifeno touch-type and touch type≥one million timesSwitch (key) stroke0.2-0.5mmSwitch (key) rebound velocity< 0.5msPeel strength= 20n/25mmAmbient temperature-30°C-+60°CRelative humidity (RH):YBK series=75%RHRBK series can up to 90% RH