Rear Adhesive Membrane Keyboard With LED Window

3M rear adhesive red transparent window
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Product Details

Metal dome membrane keypad switch be made up of soft insulated material layer and conductive material layer, is a kind of multilayered structured self-unlocked press switch. Press switch, panel, functional mark, read display window, indicator light transparent window, switch circuit derivation line and the character, sign, and decorative contents in general panel make up of the electronic operative system. It is now widely used in many products in various professions.

Basic Parameter:

1. Insulative resistance: ≥ 100Ω

2. Base material pressure: 150VDC

3. Physical performance: Service life: 1000000 times Touching

4. Environment adaptability: Operating temperature: -40° C-80° C

5. Work humidity: ≤ 98%

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Product Table

1.Electronic characteristics

Circuit rating

35V (DC), 100mA, 1W

Contact resistance

10 Ω ~500 Ω (According the trace length and materials)

Insulation   resistance

100M Ω 250V DC

Contact bounce

≤ 5ms

Dielectric withstand

250VRms (50~60Hz 1min)

Life expectancy

flat   type ≥ 5 million times, tactile type ≥ 1 million times

2.Mechanical Properties

Actuation force

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

3.Environmental parameters   

Operating Temperature

-40 ° C~+80 ° C

Storage temperature

-40   ° C~+85 ° C

Humidity

40 ° C, 90% ~95%, 240 hours


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