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Pn Junction Diode Has Breakdown Voltage
Pn Junction Diode Has Breakdown Voltage. A zener diode is used as a voltage regulator. Forward biasing a pn junction.

In the figure assume that the forward voltage drops of the pn diode d 1 Breakdown is characterized by the rapid increase of the current under reverse bias. A zener diode is used as a voltage regulator.
The Voltage Across Reverse Biased Pn Junction Increase To A Certain Value, Called Breakdown Voltage Of Diode, The High Reverse Current Is Caused Which May Damage The Junction Diode.
The voltage or point at which junction breakdown occurs is called breakdown voltage. Breakdown voltage of diode what is breakdown voltage? The electric field across the junction will keep increasing as the applied reverse voltage is increased.
Avalanche Breakdown Occurs In A Pn Junction Diode Which Is Moderately Doped And Has A Thick Junction (Means Its Depletion Layer Width Is High).
Breakdown is characterized by the rapid increase of the current under reverse bias. The forward voltage rating of zener diode is the same as a normal diode. At reverse breakdown voltage (typically around 5v), there is a sharp breakdown at a reverse voltage as shown in the figure:
We Will See Why, Usually, It's Not Advisable To Have A Large Reverse Bias Voltage Across Our Pn Junction Diode!
However, all diodes have a breakdown voltage, beyond which the diode will allow current to flow in the opposite direction (from cathode to anode). Avalanche breakdown occurs in a pn junction diode which is moderately doped and has a thick junction (means its depletion layer width is high). Its depletion layer width is high).
Avalanche Breakdown Usually Occurs When We Apply A Reverse Voltage Across The Diode Higher Than The.
Forward biasing a pn junction. This is also known as reverse breakdown voltage. Avalanche breakdown occurs in a pn junction diode which is moderately doped and has a thick junction (means its depletion layer width is high).
A Pn Junction Diode Is One Of The Simplest Semiconductor Devices Around, And Which Has The Electrical Characteristic Of Passing Current Through Itself In One Direction Only.
This value of zener breakdown voltage makes any zener diode to be chosen for certain applications. Avalanche breakdown usually occurs when we apply a high reverse voltage across the diode (obviously higher than the zener breakdown voltage,say vz). Then, the forward current has a rapid increase.
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