FPC Membrane switch

An FPC membrane switch combines a flexible printed circuit (FPC) with a traditional membrane switch construction, offering superior electrical reliability and design freedom. Unlike standard silverprinted circuits, the FPC layer uses etched copper traces laminated on a polyimide or polyester base, providing lower resistance, higher current capacity, and excellent bending endurance. This construction allows complex routing, tighter tolerances, and integration of components like LEDs, resistors, or ZIF connectors. The switch remains thin (as low as 0.4 mm), lightweight, and highly flexible, conforming to curved or moving surfaces. It is sealed against dust and moisture (IP67 available) and rated for millions of actuations. FPC membrane switches are ideal for medical devices, aerospace controls, robotic arms, wearable electronics, and industrial equipment where circuit density, signal integrity, and dynamic flexing are critical.