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Compared to an ideal PN diode, what are the different characteristics of a practical PN diode? Please list two different characteristics when the diode is reversed biased.

Compared to an ideal PN diode, what are the different characteristics of a practical PN diode? Please list two different characteristics when the diode is reversed biased.

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
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### Practical vs. Ideal PN Diodes **Question:** Compared to an ideal PN diode, what are the different characteristics of a practical PN diode? Please list two different characteristics when the diode is reverse-biased. **Answer:** In practical applications, PN diodes exhibit several differences from their ideal models, especially when reverse-biased: 1. **Reverse Leakage Current:** In a practical PN diode, a small reverse leakage current flows when reverse-biased, contrary to the ideal diode which assumes no current. This leakage current increases with temperature. 2. **Breakdown Voltage:** Unlike an ideal diode, a practical PN diode has a specific breakdown voltage beyond which it conducts heavily in the reverse direction. This breakdown is often due to avalanche or Zener effects.
Transcribed Image Text:### Practical vs. Ideal PN Diodes **Question:** Compared to an ideal PN diode, what are the different characteristics of a practical PN diode? Please list two different characteristics when the diode is reverse-biased. **Answer:** In practical applications, PN diodes exhibit several differences from their ideal models, especially when reverse-biased: 1. **Reverse Leakage Current:** In a practical PN diode, a small reverse leakage current flows when reverse-biased, contrary to the ideal diode which assumes no current. This leakage current increases with temperature. 2. **Breakdown Voltage:** Unlike an ideal diode, a practical PN diode has a specific breakdown voltage beyond which it conducts heavily in the reverse direction. This breakdown is often due to avalanche or Zener effects.
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