Bespoke Silicon Keypad for Technology Manufacturer

KeyTech – Europe's only Silicone Elastomer Keypad Design Company –

RDS Technology Ltd.

For RDS Technology Ltd. we designed a KeyFlex elastomer interface in two parts with a 6 key and 16 key keypad to meet their requirements for an attractive sealed interface for their new up market product, they wanted some more three dimensional than the standard membrane approach.

We decided to employ a conventional carbon dipped contacts applied to contact columns beneath each of the 22 key moulded buttons/switch positions.

Features of our bespoke KeyFlex Elastomer Interface:

Tactile effect was supplied by the elastomer actuator skirt (200 g 1.3 travel)
Each key was back lit by a SM LED mounted on the PCB under each contact column.
25 mm guidance tubes were included in the front case moulding as the PCB was positioned some distance away from the front case surface.
The printed legend colours white, blue, red, yellow, green were applied, over-sprayed with black and then laser etched out to reveal the coloured, back lit legends/text.
All the keys were then coated with our KeyEpox epoxy coating.
The 6 key keypad has an integral hinged flap to cover the computer access and a hidden back-lit legend.

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