FPC membrane switch is also called a flexible membrane switch, its circuit is no longer a silver paste printed circuit, but a more stable FPC circuit material, so it is more resistant to high temperature and corrosion. The circuit layers of FPC membrane switches use FPC flexible circuit board, the circuit has high precision with output spacing of 1.0mm, which has extremely low resistance value, stable and reliable performance, and long service life features.

The circuit layers of the flexible membrane switch are made of polyester film (PET), which makes membrane switches have good insulation, heat resistance, flexural resistance, and high resilience.