Non-Tactile Membrane Switches
Non-Tactile Membrane Switches
When a Non-Tactile Membrane Switch is utilized, the result is no direct physical or audible response indicating that the button has been pressed. Instead, Indication is handled by other means, usually through embedded processing or direct electrical connections. This can turn on LEDs, make sounds, provide haptic feedback, or show readings on an instrument display.
The layer stack of a non-tactile switch requires two circuit layers and an air gap between them to function. Two variations are commonly used to provide this.
The first most common method uses two flat circuit layers with space between (Dual Circuit Switch). The secondary method involves printing the top circuit directly on the backside of the overlay (Conductive Overlay Switch).
Both methods operate identically. When the switch is pressed, the two circuit layers connect, completing the circuit and allowing an electronic signal to reach its desired destination.
Non-tactile switches are inherently more durable and fully sealed from the outside environment. Giving Non-Tactile Membrane Switches the advantage of being rated for up to three times as many actuations as a Tactile Membrane Switch.
