The metal dome is a PET flake which containing metal dome, which usedon the PCB or FPC circuit board, plays the role of a touch switch. Metal dome has many advantages ,such as environmental adaptability, conduction properties, long life, good touch feel. It applies to the sophisticated electronic products.
Working Principles: metal dome is located above the conductive part of the PCB, when pressing buttons, the center of metal dome will sink and touch the lines on the PCB, thus forming the loop, then the whole product works properly
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