Difference between TVS Diodes and Zener Diodes (1)

As shown in Fig. 2-6(a), a TVS diode (ESD protection diode) absorbs very high overvoltage in a short time and works so as not to apply excessive voltage to other semiconductor devices. On the other hand, as shown in Fig.2-6(b), a Zener diode clamps input voltage to a constant voltage and supplies clamped voltage to other semiconductor devices.
Thus, a TVS diode absorbs surge voltage to protect other semiconductor devices, whereas a Zener diode provides constant voltage to other semiconductor devices.

Usage of TVS diode/Usage of Zener diode

Fig. 2-6(a)  Usage of TVS diode

Fig. 2-6(b)  Usage of Zener diode

Chapter II : Diodes

Types of Diodes
Functions of Rectifier Diodes
Forward Characteristic of Rectifier Diodes (IF-VF Characteristic)
FRDs (Fast Recovery Diodes)
Voltage Regulator Diodes (Zener Diodes)
TVS diode (ESD protection diode)
Difference between TVS Diodes and Zener Diodes (2)
Variable-capacitance Diodes (Varicap Diodes)
Schottky Barrier Diodes (SBDs)
Reverse Recovery Characteristic of Schottky Barrier Diodes (SBDs)
Difference Depending on Metal of Schottky Barrier Diodes (SBDs)
Characteristics Application of Various Diodes

Related information