The definition of tact switch

Tactile switch is a small size switch that can be directly mount on PCBs and the tact switch is a type of button whose actuation is perceptible by touch,it is a normally open (NO) switch, it closes an electrical circuit when the button is depressed, if the tact button is pressed the switch turns on and released the switch turns OFF state. Below is the definition for the momentary tact switch.

Tact switch has click response, the clicky feedback of tactile button lets the user fee the response of the actuation from the tactile switch; the tact switches are adopts contact dome technology, it plays an role of moving contact and specific materials, the surface processing and shape properties to maintain the steady contact over a longstanding period of using, that is why the tact switch features high durability, what’s more, it is cheap for cost.

Tactile switch is micro current button cannot hurt anyone and it also can be made with input signal ON or OFF.