Specification

Membrane Switch

General Specification

Electrical Properties

Operating voltage ……………………………………………………………………………………………………….. 0.5 – 50V AC/DC
Operating current ……………………………………………………………………………………………………….. 40mA max AC/DC
Switched power …………………………………………………………………………………………………………… 1.0 VA max AC/DC
Insulation ………………………………………………………………………………………………………….…….…… < 10 MOhms at 100 V DC
Dielectric strength ……………………………………………………………………………………………………….. 500 V RMS at 50Hz

Contact Bounce Time

Flat membrane ……………………………………………………………………………………………………….….… < 3 msecs
Polyester domed membrane ………………………………………………………………………………………… < 20 msecs
Metal domed membrane ………………………………………………………………………………………..……… < 10 msecs

Environmental Properties

Operating Temperature

Flat polyester ……………………………………………………………………………………………………………… -40ºC to +80ºC
Polyester dome …………………………………………………………………………………………………………… -30ºC to +45ºC
Metal dome ……………………………………………………………………………………………………………….. -40ºC to +70ºC

Storage Temperature

Polyester dome …………………………………………………………………………………………………………… -40ºC to +50ºC
Metal dome ………………………………………………………………………………………………………………… -40ºC to +80ºC

Shock 3 axis – no closures ……………………………………………………………………………………..….… 25g
Shelf life at ambient temperature …………………………………………………………………………..……. 1 year

Mechanical Properties

Switch Travel

Flat menbrane ……………………………………………………………………………………………………………… 0.25mm
Polyester domed membrane …………………………………………………………………………………………. 0.60mm
Metal domed membrane ………………………………………………………………………………………………. 0.60mm

Operating Force

Polyester membranes …………………………………………………………………………………………………… 75 – 500 gms
Metal domed membranes ……………………………………………………………………………………………… 300 gms

Circuit material ……………………………………………………………………………………………………..…….. Polyester film

Conductive Materials

Standard membranes …………………………………………………………………………………………………… Silver or carbon
Metal domed membranes ………………………………………………………………………………………….…. Nickel or gold plated steel to silver or tinned copper

Life Expectancy

Flat ……………………………………………………………………………………………………………………………. 500.000 switch actuation(máx)
Metal dome ………………………………………………………………………………………………………………… 500.000 switch actuation(máx)