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the Advantage for this membrane switch: 1: Combine apheliotropic panel with membrane switch 2: Lamp-house support by LED 3: Min thickness can be made 1.2mm 4: Patterns in the product surface can be shine when get power supply and with many kinds of colors white, blue, etc 5: Shine lasts long, never fade 6: No affecting the function of input signal when the key is on 7: Match the IC driver to control the logo shine at all times and the key shine from a distance 8: How long the key shine, we can design based on customer's request 9: Can be instead of EL lamp absolutely. Membrane switch: >Overlay materials:The most commonly used base materials are polyeaster or polycarbonate; >Rear adhesive:3M467 or 3M468; >Standard tolerance:+/-0.01 inch; >Matching color:Pantone and RAL; >Tail,pin,circuit layerout: submit to customers detailed requests; Type of switch: >None tactile; >Graphics; >Tactile with stainless steel domes; >Tactile with polydome on the circuits. Notice:We have the capacity to provide membrane switch keypad with other special requirements,such as shielding,windows,embossing,embedded leds,UV/glossy.matt/texture,etc. Performance: Electrical: Operating voltage:0-35V DC; Operating current:100MA Max; Operating loop resistance:less than 200ohm,of course, we can make it within 100ohm based on customer’s requirement; Contact Bounce:Less than 5 milliseconds typical; Conductors:Printed silver conductive inks or Carbon blend; FRI and ESD shielding: Available in most configurations. Mechanical: Life expectancy:1,000,000 actuations per switch position; Actuation force:6-24 ounces,range depending on customers specification; Switch travel:0.005” to 0.030” typical; Environmental: Operation Temperature:-40°C +80°C Storage Temperature:-40°C +70°C Humidity:40°C, 90% 95%, 240hr.,Vibration:20G, max