PCB Membrane Switch

Dustproof Poly Tactile Dome Switch 3M9448 Silk-printing 10Ω - 500Ω A membrane switch consists of various layers laminated together. The layers of a basic membrane switch construction include: a membrane overlay, spacer, printer circuit, rear adhesive, and tail filler. Depending on the environment and requirements of the application into which the membrane switch plugs into, the construction can vary. For example, if shielding is necessary, a two-circuit membrane switch design