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Difficulty: MediumDiodes

The Peak Inverse Voltage (PIV) rating of a semiconductor diode specifies the maximum reverse-bias voltage that can be applied across its terminals before the PN junction breaks down and begins conducting in reverse.

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Answer

True: The Peak Inverse Voltage (PIV) rating defines the maximum reverse-bias voltage a diode is designed to withstand without entering junction breakdown.
The statement is true because the Peak Inverse Voltage (PIV) rating is the manufacturer's maximum allowable reverse-bias voltage. Operating beyond this limit causes avalanche breakdown, allowing destructive reverse current to surge through the component.

Step-by-Step Solution

1
Identify the standard definition of the Peak Inverse Voltage (PIV) specification for semiconductor diodes.
PIV represents the peak voltage experienced by the diode when it is reverse-biased (cathode positive relative to anode).
Understanding diode ratings is critical for selecting components capable of handling reverse voltage without failing.
2
Determine the physical consequence of exceeding the diode's PIV rating.
Exceeding the PIV rating forces the PN junction into avalanche or Zener breakdown, leading to sharp reverse conduction and potential permanent destruction.
Standard rectifier and switching diodes are not designed to sustain continuous operation in the reverse breakdown region.
3
Evaluate the accuracy of the stem statement against semiconductor theory.
The statement accurately reflects the definition and operational limit designated by the PIV parameter.
The PIV specification exists precisely to prevent unintentional reverse breakdown.

Key Concept

Diode Peak Inverse Voltage (PIV) Rating and Reverse Breakdown
Estimated Time:45s
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Diodes

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