Why Zener Diodes Don't Have Current Leakage

AI Thread Summary
Zener diodes do exhibit current leakage, contrary to the claim that they don't. Every diode, including Zener diodes, has some level of leakage current due to their inherent properties. In reverse bias, while Zener diodes are designed to conduct, they still have a maximum reverse current specified in their datasheets. The discussion highlights a misunderstanding regarding the behavior of Zener diodes in reverse breakdown conditions. Overall, the consensus is that the lecturer's assertion about the absence of leakage current is incorrect.
ahjie
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Can someone help me ?
i can't understand why zener diode don't have current leakage?
 
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It does. Every diode has some leakage.
 
My lecturer say it don't have leakage current in revere bias circuit ? (include in pratical)
 
Your lecturer is wrong. All diodes have leakage current. It is their nature.

Here is the first zener diode datasheet I found on Google.

http://www.diodes.com/datasheets/ds18004.pdf

Check out the Electrical Characteristics... it lists the maximum reverse current.
 
I suppose it depends on how you look at it. It won't have leakage when in reverse breakdown since it is conducting and is supposed to be conducting. I would agree with carlgrace in that the lecturer has some wires crossed.
 

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