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
Graphic overlays
1 polycarbonate, polyester
2 multi-color graphic overlays
3 engineered adhesives
4 metal domes or polydomes
Mechanical characteristics
1 actuation force, nontactile: 4oz. To 16oz.
2 actuation force, tactile: 10oz. To 16oz. Typical
Switch stack-up thickness: available for custom specification
Electrical feature
1 current rating: 50 ma at 30 vdc
2 actuations, actile: 1 million minimum at maximum rated load
3 actuations, nontactile: 5 million minimum at maximum rated load
4 switch contact bounce, tactile: 10 milliseconds max
5 switch contact bounce, nontactile: 5 milliseconds max
6 termination contact resistance: 100 ohms max, loop
7 insulation resistance: 1 gohm win at 100 vdc
Environmental condition
1 operation temperature: -20 degree c to 70degree c
2 storage temperature: -45 degree c to 85degree c
3 humidity: to 95% (switch fully sealed to environment)
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