When measuring capacitor resistance (ESR) of a ceramic capacitor in circuit, does one need to power up the pin or can it be tested with the power off? I have an Anatek Meter with Croc clips.
(Topic ID: 117858)
I have tried to test in circuit the ceramic capacitors on my Black Knight (470pfd 20% 50v) but cannot obtain any readings on the ESR meter. Would any tech expert have a helpful comment?
Olympia, WA
Quoted from KenLayton:ESR only applies to electrolytic capacitors and tantalum electrolytics.
From the capacitor manufacturer AVX:
"Every capacitor has parasitic ESL and ESR."
http://www.avx.com/docs/techinfo/mlc-tant.pdf
in a paper referencing both tantalums and multilayer ceramics.
viperrwk
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