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Difference between TVS diode and Zener diode



TVS diode and zener diode can both use as voltage stabilization. The appearance of both diode are basically the same as the normal one, but in the function aspect they still have some difference.

TVS diode is a new product that are developed based on voltage-regulator tube technology. The circuit symbol of TVS diode is the same as the Zener diode. When both ends of the TVS diode have an instant high energy shock, it will reduce the impedance in high speed and absorb the huge electric wave to prevent the circuit component from damaging.   


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Zener diode use PN junction to reverse breakdown and the electric current of it can change in a big range but the voltage stay the same. Hence, the Zener diode can stabilized the voltage. It is a diode that have a high electrical resistance before reverse breakdown. When it connection in series it can have a higher stable voltage.

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Though the both diode can use as voltage stabilization, but Zener diode have a smaller breakdown current and can have a higher voltage stabilization. In blueschip, you can know more details in the product page that have product specifications and the data sheet.