Panasonic Electronic Components’ Switch Panels, also known as tactile sheets, consist of domed diaphragms fixed by tape on a base film. Switch Panels function as mini switches which are laminated on a printed circuit board. Panasonic Switch Panels are often used by cell phones and small handheld devices to detect finger strokes on a keypad. Panasonic Switch Panels use a unique diaphragm design to provide high contact reliability. Other advantageous features include a ventilating mechanism, silver-treated metal dome, protective film and plastic film carrier tape.