Product Description
A flexible membrane switch consists of printed graphic overlay made from coated polyester film or polycarbonate film underneath layers of circuitry film. The circuit is printed on specially made polyester film for flexible circuitry printed by silver conductive ink by using a screen printing method. They function with electrical contact between the keypad surface and underneath circuits when the symbols on the overlay are pressed. The basic principle of functionality is that the contact behind the tactile key or non-tactile key closes an open loop of the circuit which terminates on the flexible tail. LEDs & resistors are can be incorporated easily in this type of membrane switch. These membrane switches are are used in domestic and industrial applications on a wide variety.