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 tightnessCircuit Material: Autotype PET

Metal dome: Nicomatic, nickel plated, gold platedAdhesive: 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.

Rubber Keypads with Metal domes array