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Technical data of membrane keyboards:

  Flat membrane keybords Membrane keyboards
with metal domes
or with embossed keys
Guaranteed life expectancy(U<30V, I<25mA) 3 x 107cycles 5 x 106cycles
Path resistance <1 Ω/cm
Path width <1,25 mm
Contact key resistance* <50, 100, 200,500, 1000Ω
Insulation resistance >10MΩ
Operation voltage max 30V
Operation current max 25mA
Ambient humidity max 95%
Operation temperature -40°C- +70°C
External dimensions max 350 x 700mm
Recommended line width > 0,2mm
Distance between the centre of keys >10mm >12mm
Colour (without restraint) RAL, PANTONE
Number of fonts - 1000
Graphic design as requested
Colours tolerance
Screen printing / Digital printing
dE < 3  /  dE < 6
3D keys as requested
Embossed keys as requested
EL lamp 130V 400Hz 5000 hours of work
LEDs specified colours
Distance between connectors** 0,1", 1mm or other

*  depending on keyboard design and customer's requirements
** Connectors are not provided for paths whose raster differs from that given above

Chemical substances that membrane keyboards are resistant to:


chemical substances foodstuff and others
acetone coffee
methyl ethyl ketone tea
toluene mustard
dichloromethane ketchup
isopropyl alcohol tomato juice
cyclohexanone citrus fruit juice
ethyl acetate grape juice
xylene vinegar
sodium hydroxide [40%] milk and milk products
hydrochloric acid detergents
petrol blood
potassium chloride  
butyl cellosolve