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Can a TVS transistor be used as a Zener diode?

Can a TVS transistor be used as a Zener diode?

The problem of substitution between diodes is what engineers want to know the most.

 

TVS transistor is a single PN junction or multiple PN junction integrated devices made by semiconductor process, which is a new type of high-efficiency overvoltage anti-surge protection device, which is widely used in the overvoltage protection of sensitive electronic parts. When the circuit has an abnormal overvoltage and reaches the TVS breakdown voltage, the TVS quickly changes from a high-resistance state to a low-resistance state, discharges the instantaneous overcurrent caused by the abnormal overvoltage to the ground, and at the same time clamps the abnormal overvoltage at a low level, so as to protect the subsequent circuit from the damage of the abnormal overvoltage. When the abnormal overvoltage disappears, the TVS resistance returns to the high-impedance state. When the circuit is working normally, the TVS is in a high-impedance state, which does not affect the normal operation of the circuit.

 

The voltage regulator diode, also known as Zener diode, is a kind of surface-junction silicon semiconductor diode made by a special process. After being reversed, the voltage at both ends remains almost constant, although the reverse breakdown current flowing through the regulator diode varies greatly. In practical applications, it is often used for voltage regulation to obtain reference voltage and as a level shift, and is widely used in regulated power supplies, electronic igniters, DC level shifts, limiting circuits, overvoltage protection circuits, compensation circuits, etc.

 

TVS diodes,Zener diode and regulators are two diodes with completely different functions and functions, and cannot replace each other!

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