Product Description

Round Domes are circle shaped switch contacts that were designed for mounting on membrane circuitry . The domes are placed on a membrane switch by means of pressure sensitive adhesive tape . When they are pushed , the centers of the domes collapse past the flat plane and make contact with the secondary pathway , thereby closing the circuit . 
Specifications:
Contact configuration: SPST Normally Open 
Plating: Nickel/Silver/Gold optional
Switching voltage: . 1 to *0 VDC
Switching capacity: 1 Watt
Switching current: . **5 to **0 mA DC
Contact Resistance（stainless steel）: <**0 ohms 
Contact Resistance（with gold plating）：<1 ohm 
Contact Bounce(make)：<0 . 3ms
Contact Bounce(break)：<0 . 6ms
Operation temperature rating: **5 ℃ to **0 ℃ 
Storage temperature rating: **5 ℃ to **0 ℃ 
Humidity: ***7% (no condensation)
Available diameters: 3~*6mm
Activation forces: from **0g to **0g (1 . 0N to 5 . 5N)