Zener Diodes

Zener Diodes

Zener Diodes


“Is there a diode that can allow for current to flow in both directions?”


When you hear the word diode, you probably think of circuit elements that limit the current to only one direction. However, is it possible to have bidirectional current flow with a diode? Well, it turns out that there is something called a Zener diode which allows for exactly this! When Zener Diodes reach a certain critical value in the negative direction known as the Zener voltage, then a break will occur which will allow for current to pass through! As seen in the graph, the Zener voltage is much higher in magnitude than its positive equivalent. Zener diodes are commonly used in microelectronic system to regulate voltage.

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