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when does a zener breakdown occur? at what voltage? Does the breakdown voltage remains constant

when does a zener breakdown occur? at what voltage? Does the breakdown voltage remains constant
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Answer #1

Zener diode occurs because of the high electric field.

It occurs when the depletion layer field width is sufficiently enough to disrupting the covalent bonds and cause number of free charge carriers due to electric field generation to swell.

?Commercially, Zeners are available with breakdown voltages from less than 1 V to more than 250 V .

No, the breakdown voltage doesnt remain constant but it increases extremely slow until the zener maximum current and then it becomes constant.

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