material of membrane switch:PET or PC
two circuit layers
adhesive layer:3M
compact structure
good hand fee

membrane keypad is made of PET, PC and with high quality and good service
Specifications:
(1) electrical performance

   circuit rating: 35VDC, 100mA, 1W

   Loop Resistance: 100Ω-500Ω
   Insulation resistance: ≥ 100MΩ, 250VDC

   substrate voltage: 1500VDC
(2) Mechanical
   life: ≥ 100 million

   Operating Force: 50g ~ 400g
   switch travel: 0.1 ~ 1.0mm

   rebound time: ≤ 5ms
(3) environmental parameters
  Operating temperature: -20 °C ~ 80 °C

   Temperature: -40 °C ~ 85 °C
   Humidity: ≤ 98%

   Altitude: 0 ~ 4500m
membrane switch is Widely used in such as household appliances control part (washing machines, microwave ovens, etc.), industrial equipment, medical equipment, industrial equipment, electronic instruments, and other fields.