Membrane Switch Overview

In its simplest form a membrane switch is a simple electrical device used to direct the flow of low voltage, low current electricity through an electrical circuit. The low current levels required by membrane switches make them particularly useful in integrated circuit applications. The printed top layer is known as the graphic overlay. It is normally made of clear polyester, and reverse printed to protect the image from wear solvents and abrasion. As membrane switches are momentary switches, it may be necessary to introduce a method of electronic latching to replicate the actions of mechanical switches.

There are many variations on this simple design, and by laminating further layers into the switch it is possible to add additional features such as snap domes, ESD/RFI shielding films, lighting panels, and embedded surface mount components.

The membrane switch is normally mounted on a flat enclosure (but can also be a regular curved shape), and typically a single ribbon cable connects the switch to the PCB through a single slot in the mounting panel.

IMP can assist you by supplying you with cost competitive membrane switches manufactured to your design specification. We can also provide you with advice on material selection to ensure that your product is fit for purpose in the environment that it will be used in.

Please call or email us with your requirements using the 'request a quote' form and one of our friendly customer service staff will help.