1×4 4 Key Matrix Membrane Switch Keypad Keyboard Control Panel SCM Extended Keyboard

Description

1.Electronic characteristics
Circuit rating: 35V (DC), 100mA, 1W
Standard square resistance: ≤ 50 mΩ / mouth / mil
Contact resistance: 10Ω-500Ω (with lead length and material change)
Insulation resistance: 100MΩ 100V
Dielectric withstand voltage: 250V Rms (50-60Hz 1min)
Contact jitter time: ≤ 5ms

2. Mechanical properties
Operating pressure: metal shrapnel type 220-350g
Switch travel: metal shrapnel type 0.6-0.8mm

3. Environmental parameters
Storage temperature: +15 Celsius – +35 Celsius
Storage Humidity: 70% -90%
Test temperature: – – 0 Celsius – + 60 Celsius 16H
Test humidity: 90% 16H
Vibration: 20G’s msx. (10-200Hz, MIL -STD-202, M204, Condition B)

4. Material properties
Line thickness: ≤ 0.13MM
Life: Metal shrapnel type less than 100,000 times
Flat touch-type less than 30 million times
Film button type less than 500,000 times