Silicone rubber switches or keypads are also called elastomeric keypads. They are famous for both industrial and domestic applications. They are not very expensive and are reliable, making them a great option. Here is everything one must know before switching to Silicone Switches.

Technology Used

Compression modeling is the backbone of silicone rubber technology. It creates angular webbing around the center, i.e., the switch. The webbing deforms uniformly to give tactile responses as the key is depressed. The webbing returns to its original neutral position as the pressure is removed. Usually, a gold or carbon pill is positioned on the base of the switch to contact a printed circuit board as the web gets deformed. In other cases, the button is an elastomer conducting electricity as it is manufactured using rubber mixed with carbon.

Some Specifications Of These Include:

1.The tactile response varies depending on the design of the webbing and base material composition.

2.The key can go up to 3 mm, and some unusual shapes are also available.

3.The force varies with the key's shape, size, and purpose.

4.Snap ratio depends on the user status. For example, a 40-60% snap ratio is ideal for beginners.

Innovations in Silicone Switches

These switches are versatile because they exhibit innovation potential. Here are some examples of how manufacturers alter the basic rubber switches.

●It is possible to manufacture the keys in various colors using pigments in the compression state.

●One can also get personalized legends printed to get keys that meet their customized demands.

●SMT LEDs also find application in silicone switches as they can light up the keys when one needs them to.

●It is possible to obtain a backlight effect to make the legends light up using laser etching.

●It is possible to customize the contact resistance or pills for different electronic devices as required. Several renowned Switch Panel Manufacturers do these.

Applications

 

Some of the most common applications of silicone switches are mentioned below.

1.Domestic Appliances

These are found in several remote controls, mainly TV, HIFI, and video units, control types of equipment, electronic toys, and games.

2.Industrial Switches

These are produced especially for marine, medical, and military applications. These are high-quality products sealed to meet the industry standards at all costs: the NEMA and IP66 standards for protection against elements like dust or liquids.

3.Handphones

It can fall under the domestic applications category, but silicone switches in mobiles make it a different variety. The rubber keypads have been an integral part of mobile phones before a touch-sensitive screen came into the picture.