Silicone rubber is the most widely utilization for of switch technology today. We can design and produce flexibility silicone rubber keypads(equal to plastic graphic overlay for the memebrane switch) were originally developed for the electronics industry. Until now they have been utilized for overlay for membrane swtich widely. As a silicone rubber keypad has a good tactile feeling and soft properties, compare with PET material graphic overlay.
Since their introduction over 30 years ago, silicone rubber keypad switch has gained enormous popularity and wide-range acceptance because of their reliability, long operational life, and excellent tactile feeling and outstanding elasticity.
Just it has an excellent tactile feeling, sometimes it can replace metal dome layer on the electric circuit of membrane switch. It can be molded into any shape keypad with conductive carbon pill in together, directly put it on the PCB board according to circuit layer’s control joints. When pressing down a rubber button deely, it will close electricity circuit. As long as releasing the button, the electricity circuit is disconnected at once. So if using only one silicone rubber keypad ,instead of metal dome and PET graphic overlay at all. Not only increasing work efficiency but also saving more money.
Innovative key coatings makes our silicone rubber keypad become special-functions applications available ! It can be designed for operation panel backlighting effective,due to it is translucency , we can install some color led patches on the circuit, By its translucency and light transmittance of these silicone rubbber, icons, numbers and letters on the buttons and keys becomes more clear and better lighting effective. These allow our product to meet some special demands for end user in many fields. It looks either a good apperance or more clear indication for user’s operation.
Silicone rubber is an excellent choice for device operation controls. It possesses the following characteristics:
|Tensile Strength (kg/cm²)||≥70|
|Tear Strength (kg/cm)||>12|
|Insulations Resistance||≥100Mohm at250V DC|
|Contact Resistance||≤200ohm at 12V DC|
If you want to know more about our silicone rubber keypads services, please feel free to contact us.