EEVblog 1746 – Schottky vs PN Diodes & Measurement Traps

EEVblog 1746 – Schottky vs PN Diodes & Measurement Traps

From EEVblog by David L. Jones

May 9, 2026

About this episode

The episode discusses the differences between Schottky and PN junction diodes and the impact of multimeters on measurements during troubleshooting.

Demonstrating the difference between Schottky diodes and PN junction silicon diodes, and how your multimeter can influence your measurement when troubleshooting. Answering an interesting Twitter question. https://x.com/blind_via/status/2052223991839170919 https://www.tti.com/content/ttiinc/en/resources/blog/infographics/schottky-diodes.html https://engineering.purdue.edu/~ee606/downloads/ECE606_f12_Lecture17.pdf Forum: https://www.eevblog.com/forum/blog/eevblog-1746-schottky-vs-pn-diodes-measurement-traps/ 00:00 – Twitter question 01:21 – Recreating the problem 03:08 – Why doesn’t it read zero volts? Let’s try a PN junction diode 04:21 …

People in this episode

Host: David L. Jones

Topics covered

  • Schottky diodes
  • PN junction diodes
  • measurement techniques
  • troubleshooting
  • multimeter influence

Keywords

  • Schottky diodes
  • PN junction diodes
  • multimeter
  • measurement traps
  • troubleshooting

Mentioned in this episode

Organizations: Twitter, Purdue University, TTI

Products: Schottky diodes, PN junction silicon diodes, multimeter

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