Flexible circuit printing is the typical of the membrane swiches, it is made of the PET or PC as pet with the high stability and flexible printed circuit board, in short FPC. Range of application: Widely used in intelligent electronic test instrument, numerical control machine, electron weighing apparatus, printer, refrigerators, microwave oven, washing machine, electronic play machine ect inductries and household appliance. Features: Beautiful shape, novelty Small size, thin, light, it is convenient for using in the keyboard of laptap. Waterproof, dust resistant, anti-oil pollution, sealing strong, preventing earthquakes. Long life expetacy, resistant bending. Mechanical properties: 1, Life: Y 100 million (Planar) 2, the operation of the keys: 15 ~ 750 N 3, rebound time: 1 10 ms 4, closed displacement: 0.1 ~ 0.4 mm (non-touch-type) 0.4 ~ 1.0mm (touch-type) 5, bending the tail of: 1 180 Degrees Properties: 1, voltage: 1 42 VDC (25VAC) 2, current work: 1 100 mA 3, to line resistance: 1 70 (250 mm between) 4, insulation resistance: Y 100 M 5, the substrate pressure: 1 1500 VDC Environmental Adaptability: 1, the working temperature: -30 ~ 70 2, storage temperature: -40 ~ 80 3, the humidity: 1 95% Membrane switch type: 1, button-neutral uplift touch membrane switch 2, built-in metal shrapnel-touch membrane switch 3, the flat touch membrane switch 4, built-in LED indicator membrane switch 5, with shielding layer membrane switch lines. Standard or following the customer's request.