LED Waterproof Membrane Switch

Parameters of LED Membrane Switch Keys

Electrical properties

1. Working voltage amp;le;50V (DC)

2. Working current amp;le;100mA

3. Contact resistance: 0.5~10Ω

4. Insulation resistance amp;ge;100MΩ（100V/DC）

5. Substrate withstand voltage: 2kV (DC)

6. Rebound time amp;le;6ms

7. Loop resistance: 50Ω, 150Ω, 350Ω three grades, or according to user needs.

8. Insulating ink withstand voltage: 100V/DC

Mechanical behavior

1. Reliable service life gt; 1 million times

2. Closing displacement: 0.1~0.4mm (non-tactile type) 0.4~1.0mm (tactile type)

3. Healthy standard force: 15~750g force

4. Migration of conductive silver paste: 10MΩ/50VDC between two wires after 56 hours at 55℃, temperature 90%

5. No oxidation and impurities on the silver paste line

6. Silver paste line width &ge; 0.3mm, small interval 0.3mm, line burr <1/3, line gap <1/4 line width

7. Standard pin spacing 2.54 2.50 1.27 1.25mm

8. The lead wire is resistant to bending, and the wire is continuously rolled for 80 times with a d=10mm steel rod.

Environmental performance

1. Working temperature: -20℃～+70℃

2. Storage temperature: -40℃～+85℃, temperature 95%&plusmn;5%

3. Atmospheric pressure: 86～106KPa

Printing indicators

1. The printing size deviation &plusmn;0.10mm, the shape edge is unclear and the weaving difference&plusmn;0.1mm

2. Color registration deviation &plusmn; 0.11mm/100mm, all insulating inks cover the silver paste lines

3. No ink scattered, no handwriting defects

4. The color difference is not greater than the second grade

5. No creases, peeling paint

6. The transparent window is transparent and clean, uniform in color, free from scratches, pinholes and impurities.

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