Since the circuit is on a layer of polyester (and not on a glass epoxy PCB), the life of these keypads is relatively less. (3,00,000 operations). Hence the usage is typically in non critical applications or products with low life cycles. Since the price of such keypads is also relatively less, they are a perfect match for low end applications or high volume requirements.

These keyboards can also accommodate LEDs of various colours and shapes. The connections are brought out on a flexible tail which has a crimped type of connector at the other end.

The Overlay layouts can be made as per customers' requirements and any colour shade can be used for the keys as well as the backgrounds.

Electrical:         Contact Arrangement :   SPST Normally Open   Current / Voltage Rating :   10 ma at 24 VDC (max) in to resistive load only   Contact Resistance :   Compatible with MOS, TTL & DTL Circuits   Contact Bounce :   Less than 10 milliseconds at make & 20 milliseconds at break         Mechanical:         Life expectancy :   3,00,000 operations per key   Key Travel :   0.380 mm nominal key travel   Operating Force :   280 +/- 60 gram force   Operating Temp :   0oC to + 50oC   Keyboard Thickness :   1.5 mm max