What are the functions of TVS diodes?

What are the functions of TVS diodes?

Transient suppression diode (TVS diodes) is a high-efficiency circuit protection device commonly used in the world at present. Its appearance is the same as that of ordinary diodes, but it can absorb surge power up to several thousand watts. Under application conditions, when subjected to a high-energy large pulse, its working impedance immediately drops to an extremely low conduction value, thereby allowing a large current to pass, while clamping the voltage at a predetermined level, and its response time is only 10-12 seconds, so it can effectively protect the precision components in the electronic circuit.

TVS diodes are used to protect input/output interfaces, Vcc buses, and vulnerable circuits in telecommunication equipment, computers, industrial equipment, and consumer electronics from lightning strikes, inductive load switching, and electrostatic discharge (ESD), etc. damage from high-voltage transient currents. There are two types of TVS diodes packages: surface mount and axial lead.