Operating voltage:
Features Specifications: Membrane Switches with Embedded LED's A membrane switch with embedded LED's is generally described as a thin, low profile, micro-motion front panel keypad, utilizing one or more layers of polyester. Screen printed conductors are printed on each layer, and pressure-sensitive adhesives are used to bond the polyester layers together. The assembly may also include passive electronic components, such as resistors or capacitors that are adhered to the membrane switch substrate using conductive adhesive technology. Other options that are often provided on the front panel include an adhesive mounting sheet to attach the keypad to a housing or sheet metal bracket, and a graphic overlay - which provides the cosmetic appeal that is most often associated with a touchpad assembly. The display panel would include either tactile or non-tactile switches as part of the front panel. Thus, a bonded assembly can also be described as a non-tactile, or tactile, membrane switch assembly.
Silicone rubber keypads With epoxy cap and plastic electroplating Available in epoxy coating or paint-sprayed, with colored keys upon request Mechanical properties: Operating temperature: -40 t180 degrees celsius Storage temperature: -55 t250 degrees celsius Operating life: 5 x 105 t3 x 107 cycles Actuation force: 20g t500g Key stroke: 0.3mm t5mm Electrical properties: Contact resistance: < 100 ohms Insulation resistance: > 10m ohms Contact bounce: < 20ms Insulation breakdown: 26kv/mm
Membrane switches 1) maximum circuit rating: 35v dc, 100ma, 1W 2) contact resistance: 10 - 500ª+ (varied from the trace length and material) 3) insulation resistance: 100mª+ at 100v 4) dielectric withstand: 250v rms (50 - 60hz per min) 5) contact bounce: 5ms or less 6) actuation force: a) flat type 60 - 300g (2 - 10oz.) b) tactile type: 150 - 400g (6 - 14oz.) 7) switch stroke: a) flat type 0.1 - 0.5mm b) tactile type: 0.6 - 1.5mm 8) life expectancy: a) flat type: 5, 000, 000 closures or more b) tactile type: 1, 000, 000 closures or more 9) surface hardness: 3h or more 10) operating temperature: -40 ~ +80ípc 11) storage temperature: -40 ~ +85ípc 12) humidity: 90 - 95% (40ípc) for 240 hours
Supplier: Membrane switches, graphic overlays, silicone rubber keypads, flexible circuits, PCB, IMD
Supplier: Agricultural products (coffee, rice, black pepper, cocoa, cashew nuts, etc.) garment/ medical product (non woven coveralls, gowns, medical facemask, arm cover, cap, shoes cover, bra, felt suit, towel, labor protection product) plastic products, pe tarpaulin, pvc tarpaulin, jumbo bag, pp bag, rubber products