The keys of have a clear epoxy coating,
In some applications it is preferred to have a rubber keypad for the user interface rather than a membrane switch graphic. Tortai offers multiple construction options when a rubber keypad overlay is required.
This construction provides tactile feedback from metal domes. All of the switching is part of the sealed membrane switch with circuitry exiting via a circuit tail. Having tactile in the membrane switch allows for a thinner construction when compared to a tactile elastomer.
Structure:
Nice appearance and good tightness
Circuit Material: Autotype PET
LED windows: translucent
keys: embossed
Metal dome: Nicomatic, nickel plated, gold plated
Tail: with mylar or UV
Connector: Nicomatic, FCI, Molex, Zif connector,CJT
Adhesive: 3M9448, 3M9080, 3M467, 3M468
Electrical :
Operating Voltage: 0-35 V DC.
Operating Current: 100 MA Max.
Operating Contact Resistance: Less than 100 OHMS typical
Contact Bounce: Less than 5 Milliseconds typical.
Conductors: Printed silver conductive inks or carbon blend.
RFI and ESD Shielding: Available in most configurations.