smoke-emitting diode

<humour, electronics>

(From "light-emitting diode") An incorrectly connected diode, probably a light-emitting diode, in the process of losing its magic smoke and becoming a friode.

See also LER.

Last updated: 1996-04-28

Nearby terms:

smoke and mirrors ♦ smoke-emitting diode ♦ smoke test ♦ smoking clover

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Jasen · Dec 14, 2023

Could also be supply polarity protection by installing rectifier diode crowbar across the rails. Smoke indicates reversed supply polarity.