Digital Membrane Switch

Membrane switch: thickness of above 0.8mm, pressing life-span is over five hundred thousand times, have the characteristics of the function stabilizes, handle reliably and good tactility feeling. Select different specification of metal dome according to the design and customer request, such as round, triangle, foursquare, rectangle and ellipse.

• Electricity performance: Working voltage:≤50VDC
• Operating current:≤100mA
• Contact resistance:0.510Ω
• Return route resistance:
• Generally≤150Ω,specially according
• to customer request
• Switch power:0.25500Mw
• Insulative resistance:≥100Ω
• Base material pressure:150VDC
• Physical performance:Service life:1000000 times Touching
• With joint forces:15450g

Snapping back time:10s
Closed displacement:0.10.4ms(not touching)
0.41.0ms(with touching)
The caudal may fold:≤180°
3.Environment adaptability:Operating temperature:-1070
Depositing temperature:-4070
Work humidity:95%
Altitude:04500 meters
4.Machine capability:External dimension:400*800MM
Key size:according to customer request
Key spacing:>1.5MM
Line wide:≥0.5MM
Resisting vibration:(Reference to MIL-STD-202)

 

Tactile membrane switch embossed LED and metal domes Performance indicators: 
1. Electronic characteristics 
  Circuit rating: 35V (DC), 100mA, 1W
  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 1min) 
  Life expectancy: flat type ≥ 5 million times, tactile type: ≥ 1 million times
2. 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
3. Environmental parameters
  Operating Temperature: -20- +80°C, Storage temperature: -40°C- +85°C
  Humidity: 40°C, 90% -95%, 240 hours