Electric fuse types, TVS Diodes, Electronic fuses for a circuitA TVS diode, or transient voltage suppression diode, is an electrical device which is designed to divert or shunt voltage spikes from a circuit in order to protect that circuit.
TVS diodes are also used to protect circuits from electrostatic discharge.
Silicon-avalanche diodes (SAD) and Zener diodes are the common types of circuit protection diodes used in TVS applications.