Working Principle of Membrane Switches

A membrane switch is generally a thin, flexible steel sheet with an insulating film interposed between the lower plate (circuit board copper foil or other metal sheet).

When pressing the membrane switch, and the white steel sheet will lower deformation. Meantime contact with the lower plate is conductive. 

Once the hand leaves, the white steel sheet bounces back and the circuit is broken.

In fact, the membrane switch is a panel-type button boards that is keyboard or keypad. Most of us are familiar with these names. 

Many devices use the membrane switch for their control panels. The membrane control switches are widely used in electronic communication, electronic measurement instruments, industrial control area, medical equipments, automotive industry, and smart toys. , household appliances, etc.

Kaike Electronics is a manufacturer of human-machine interface operation control products. 

Our company has independent production capabilities of independent design, sample development, mass production, and large-scale operation. 

We can provide customers with one-stop services including R&D, design and production.