Membrane Switches: Tactile and Non-Tactile

23 Mar Membrane Switches: Tactile and Non-Tactile

When designing your membrane switches you can opt for two different types of switches, a tactile switch and a non-tactile switch. Let us have a look at these in a little more detail:

Tactile Switch:

A tactile switch provides tangible feedback to the user that the button has been pressed. A stainless steel dome is placed under the overlay and once pressed provides momentary contact with the circuit layer. The metal domes are supported by an adhesive spacer layer and in their relaxed state the legs of the dome rest on the outer edge of the primary pathway. When pressed the domes collapse and make contact with the secondary pathway in the centre, thereby completing the circuit. This is demonstrated clearly in the diagram below:

Tactile Membrane Switch

Construction of a Membrane Switch with a Tactile Switch:

Membrane Switch

Non-Tactile Membrane Switch:

Non-tactile switches are more reliable and have a longer life cycle due to there construction. Instead of the tactile feedback used in the switch above, using a non-tactile switch design requires a separate feedback to the user to confirm activation. This can be in the form of a light, sound or change in visual display.

Non-Tactile Membrane Switch

Construction of a Membrane Switch with a Non-Tactile Switch:

Membrane Switch

You will also be interested in the different kinds of embossing that are available for your overlay buttons, find out more HERE .Similarly if you have any queries please get in touch with us and we will be happy to help.