Main Features of A Custom Keypad Made of Silicone Rubber

A custom keypad made of silicone rubber is used in order to provide the users with a smooth interface when operating a machine or tool. It functions similar to a soft mask and covers a series of buttons. The compression molding technology is used in order to design the rubber keypads. In this process, a combination of temperature and pressure is used in order to create a durable and malleable surface which surrounds the electronic contacts. Therefore, a single piece of silicone webbing can be used in order to design an entire keypad.

Using a silicone rubber keypad, manufacturers can produce a tactile response that is uniform across an entire surface. Silicone rubber does not interfere with the operations of a device due to being electronically neutral. The webbing of silicon rubber can protect the internal components from dust, dirt, moisture and other contaminants. The buttons are covered by a webbed sheet of silicone rubber instead of being covered by individual pieces of silicone rubber. Thus, silicone rubber can create a waterproof and sealed cover around the buttons. The keypads covered by the webbing of silicone rubber are ideal for being used at all types of environments. The industrial as well as medical devices or tools are exposed to different types of contaminants, such as chemicals, fluids, dirt or dust. The silicone rubber keypad is used with the industrial and medical equipment due to this reason.

It is possible to wipe off any material that accidentally falls on the surface of a silicone rubber keypad. Thus, no liquid or dry contaminant can reach the internal components of a machine. Therefore, installation of a silicone rubber keypad increases the longevity of a machine. The keypads made of silicone rubber do not become stained and are easy to maintain. A series of electronic contacts are present underneath the sheet of silicone rubber. They deliver electronic impulses once a key has been pressed enabling a tool or machine to perform a desired action.

A portion of the silicone web is depressed once a button has been pressed. A carbon or gold pill is fitted to the center of each section of the custom keypad made of silicone rubber. A silicone conductive substance that contains carbon is used to manufacture the conductive carbon pills. A silicone rubber keypad may even be fitted with gold plated pills. The conductive resistance is low in both carbon pills and gold-plated pills. However, the gold-plated pills have less resistance in comparison to carbon pills and gold does not become damaged due to oxidation.

The carbon or gold pill touches the PCB contact once a key on the rubber keypad has been pressed. This contact remains underneath each key. The open circuit of a rubber keypad closes once the carbon or gold pill touches the PCB contact which activates the switch to perform a desired function. For more information visit Our Website