4x4 Matrix Membrane Keypad for Arduino NodeMCU Wemos By KPRAppCompile
4x4 Matrix KeyboardNew16 Key 4*4 Membrane Switch Keypad 4x4 Matrix Array Matrix keyboard
for arduino nodemcu wemos
4x4 matrix keyboard:
Contact resistance of 500 ()
Insulation resistance 100M ()
Key Operating Force 150-200N
Rebound time 1 (ms)
Life of 100 million (times)
Operating Temperature 60 ()
1 the electronic characteristics
Circuit Rating: 35V (DC) 100mA 1W
Contact resistance: 10 ~ 500
(Varies according to the lead lengths and different from those of the material used)
Insulation resistance: 100M 100V
Dielectric Strength: 250VRms (50 ~ 60Hz 1min)
Electric shock jitter: <5ms
Life span: tactile type: one million times
2 the mechanical properties
Operating pressure: Touch feeling: 170 ~ 397g (6 ~ 14oz)
Switch travel: touch-type: 0.6 ~ 1.5mm
3 the environment parameters
Operating temperature: -40 to +80
Storage temperature: -40 to +80
Temperature: from 4090% to 95% 240 hours
Vibration: 20G max. (10 ~~ 200Hz the Mil-SLD-202 M204.Condition B)
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