Tactile Switches or tact switches are an on/off electronic switch that is only on when there is some pressure put on it or when the button is pressed. As soon as the tactile switch button is released and the pressure has been took off, the circuit is then broken. Tact switches work with user interaction with the button or switch when it makes contact with the control panel beneath, most cases this is usually a printed circuit board (PCB) Tact switches are an electromechanical switch for:- • Keyboards • Keypads • Instruments • Interface control panel applications There are many types of electric tactile switches available and these are:- • Standard Types • Illuminated Types • Sealed Types • Key Tops • Surface Mount Types • Hinged Types • SPST (Single Pole Single through) • SPDT (single pole double throw) • DPST (double pole, single throw) • DPDT (double pole double throw) All Tactile switches are designed for applications such as:- • Automotive • Industrial • Telecommunication networks