Key switches mainly refer to light touch key switches, also known as light touch switches. The key switch is an electronic switch, which belongs to the category of electronic components. When used, the switch function is closed and turned on by applying pressure to the operating direction of the switch to meet the conditions of the operating force. When the pressure is removed, the switch is turned off. Force changes to achieve on-off.

The key switch consists of an insert, a base, a shrapnel, a button, and a cover plate. The waterproof tact switch adds a layer of polyimide film on the shrapnel; the key switch has a small contact resistance load, accurate operating force error, specifications Diversification and other advantages, because of the environmental conditions of key switches, large equipment and high-load buttons are directly replaced by conductive rubber or dome switch hardware shrapnel.

The main uses of key switches are color TV sets, black and white TV sets, audio equipment, video recorders, video cameras, computers, game consoles, fax machines, walkie-talkies, batons, machine tool control devices, copiers, printers, electronic instruments, meters and other household appliances.