Embossed Keypad Waterproof Membrane Switch , Metal Dome Switch Dustproof
Quick Detail:
> Window : glossy
> Pitch : 2.54 mm
> Conductive side : top
> LED window : glossy
> Operating condition : 40°c,90%~95%,for 240 hours
> Life span : 300 million times
Description:
> Overlay button: embossed 0.35 mm
> Top circuit: Φ 8 mm metal dome
> Bottom circuit : flat
> Led window : no color coated translucent
> Circuit crossing : yes
> Matching color: Pantone and RAL color matching system.
Applications:
1. A. For measuring device, such as analytic instrument, nautical intrument , medical equipment and so on
B. For mechanical and electrical products such as CNC machine electric weighing ,robot ,printing machine, function keyboard, monitor, printer, graphic plolter and so on .
C. For OS office system , such as telephone set ,fax machine, copy cat ,counter and so on
3. Note:
Metal dome’s feet can’t be folded 90 degree toward its top when use , it will reduce the life span of metal dome
Specifications
|
Circuit rating |
35V(DC),100mA,1 W |
|
Contact resistance |
10Ω - 500Ω(According the trace length and materials to confirm) |
|
Insulation resistance |
>100MΩ 250V(DC) |
|
Contact bounce |
≤5ms |
|
Dielectric withstand |
250VRms(50 - 60Hz/1 min) |
|
Life expectancy |
flat type≥5 million times, tactile type:≥1 million times |
|
Mechanical Properties |
|
|
Operating pressure |
flat type 57-284g (2-10 Oz),tactile type 170-397g (6-14 Oz) |
|
Switch stroke |
flat type 0.1 - 0.5mm, tactile type 0.6 - 1.5mm |
