Silicone Rubber Membrane Keypad Dome Switch 

OEM PCB MEMBRANE SWITCH GRAPHIC OVERLAY   Graphic Overlay–PET/PC is usually the material of choice due to its superior chemical resistance and flex life . Can either digitally print, screen-print, or employ a combination of both methods to ensure you get the right colors, textures and finishes your design requires.    Membrane switch is an operating system that integrates key functions, indicating elements and instrument panels. It consists of four parts: panel, upper circuit, isolation layer and lower circuit. When the membrane switch is pressed, the contacts of the upper circuit are deformed downward, and are in contact with the pole plate of the lower circuit. After the finger is released, the contacts of the upper circuit bounce back, the circuit is disconnected, and the circuit triggers a signal.The membrane switch has strict structure, beautiful appearance and good sealing performance.   We are a Membrane Switches manufacturer eng…