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Electronics Engineering Resources

Diodes Explained: What is a Diode, How It Works & 12 Types of Diodes

A complete guide to diodes — the PN junction, diode symbol, forward and reverse bias, and every major type of diode explained: rectifier, Zener, Schottky, LED, laser, photo, varactor, PIN, TVS, switching, alternator, and data diodes.

22 September, 2026 18 min read