الوصف

The membrane switch/membrane key pad is built from PET/PC and PSA.  The PCB can also be used as the base for a switch. It can be tactile or non-tactile, depending on the design. The tactile style provides a physical click when the user pushes it. The non-tactile style has a longer capacity, but lacks a physical feedback response to the user.  A rubber keypad can be added to the top of the item as well. Membrane switches are used in many arenas, including medicine, gaming, aviation, nautical equipment, appliances, printers and public information panels.  Membrane switches have many advantages over other switches. They are thin and compact, cost-efficient, versatile and durable, user friendly, and moisture and dirt resistant. Additionally, they come in many visually-pleasing styles and colors suitable for any need.   

Key Specifications/Special Features:
Description:
Embossed overlay (for tactile feel)
Mylar dome and metal domes (for tactile feel)
UV hardcoat flat key on surface
EMI, RFI and ESD shielding
Material of overlay: Polyester or polycarbonate
Any shape of key
Transparent and abrasion resistant window
Solder pin female connector attachment
LED sticked
Multi-color, reverse side printing
Wide variety of textured overlays including matte gloss overlays
Electrical characteristics:
Contact rating: *5VDC, 5mA
Open circuit resistance: **0VDC, **0M ohms min.
Reverse voltage: **5V/minute
Circuit resistance: **0 ohms max.
Switch stroke: 0.*5mm to 0.2mm
Operation: Momentary
Operating temperature: 0 to **0 degrees Celsius
Humidity: *3 degrees plus or minus 2 *5%RH
Life time: **0, **0 times min.