A Transient Voltage Suppressor (TVS) is a protective device designed to safeguard electronic circuits from voltage spikes, such as those caused by lightning strikes or electrical surges. It works by clamping the excess voltage to a safe level, allowing normal operation of the circuit while preventing damage to sensitive components. TVS devices are commonly used in various applications, including consumer electronics, automotive systems, and telecommunications equipment. They come in different forms, such as diodes and varistors, and are selected based on the specific voltage and current ratings required for the application.