☑ Leakage Current Of Zener Diode

General purpose and low v cesat transistors. Izt reverse current ir reverse leakage current at vr vr reverse voltage if forward current vf forward voltage at if zener voltage regulator if v i ir izt vz vr vf electrical characteristics ta 25 c unless otherwise noted vf 09 v max.

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In the reverse bias condition the zener diode is an open circuit and only a small leakage current is flowing as shown on the exaggerated plot.

Leakage current of zener diode. The leakage current of diode is the current that the diode will leak when a reverse voltage is applied to it. Consider this datasheet for a family of zener diodes. Zener diodes are special silicon diodes which have a relatively low defined breakdown voltage called the zener voltage.

However when connected in the reverse mode which is usual in most of its applications a small leakage current may flow. At if 10 ma device device marking zener voltage note 1 leakage current vz v at izt ir at vr min nom. The leakage current of a zener diode is the current that leaks when a diode is connected in reverse biased.

If you apply voltage more negative than that limit the diode will undergo reverse breakdown and begin to conduct a significant amount of current but backwards from the normal direction of diode current flow. There is no relationship between the test voltage and zener voltage. In real diodes when the voltage is reversed a very small amount of current leakage may flow.

And more significantly each diode is rated for a certain maximum amount of reverse voltage. Ive seen this is multiple family datasheets but it really doesnt make sense. Even though diodes are one way devices and they are only supposed to conduct current through them when they receive forward voltage positive voltage to the anode.

As the breakdown voltage is approached the current will begin to avalanche. All of the parts 3v and under have their leakage current rated as some current at 1v. Zener diode operation the zener diode operates just like the normal diode when in the forward bias mode and has a turn on voltage of between 03 and 07 v.

Rectifiers 530 rf diodes 13 schottky diodes schottky rectifiers 521 silicon carbide sic diodes 98 small signal switching diodes 158 zener diodes 691 digital transistors brts gate drivers. At low reverse voltages a zener diode behaves in a similar manner to an ordinary silicon diode that is it passes only a very small leakage current.