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The breakdown is a violent process, right? So does that make any irreversible destroy to the diode?

Could the diode remain intact after the voltage is removed?

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    $\begingroup$ The zener diode is designed so that it does "breakdown" when the reverse voltage exceeds a certain value. en.wikipedia.org/wiki/Zener_diode $\endgroup$
    – Farcher
    Commented Sep 30, 2017 at 14:30

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Zener breakdown isn't "violent" in itself. After all, Zener diodes are intended to operate permanently in breakdown mode!

The commonest reason that a diode (or transistor) fails after Zener breakdown is because of excessive heat generation in the component, not because of the breakdown itself.

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