Tactile switches are most often found in control panels of monitors, televisions, mobiles, radios, etc. They are widely used in industry for different purposes. They come with various number of pins as per the requirement. A tactile switch has only two states ON and OFF. Here 4 pin tactile switch is discussed.Inside the switch we can see there is a hat like thing. Actually it’s the button that we tap. The button looks very similar to a hat. At the bottom of the button there is a pointing arrow and below it lies a conducting plate. The pins are attached below the plate.