[sdiy] Typical ESR of different capacitors

Harry Bissell harrybissell at wowway.com
Wed Sep 1 15:52:52 CEST 2010


You could safely say that the electrolytic would have the highest ESR, the
tantalum next, and the ceramic is ~probably~ the lowest. 

H^) harry


----- Original Message -----
From: Antti Huovilainen <antti.huovilainen at iki.fi>
To: synth-diy at dropmix.xs4all.nl
Sent: Wed, 01 Sep 2010 09:29:05 -0400 (EDT)
Subject: [sdiy] Typical ESR of different capacitors

Hi

I'm doing a small digital board that uses an LDO for the +5V supply. This 
requires a capacitor with relatively low ESR and it got me thinking:

What is the range of typical ESR in various types of capacitors?

It's been hard / impossible to find good information online about the 
topic as manufacturers tend to only list ESR for their low-ESR capacitor 
models. However, if I pick random small value electrolytic, tantalum and 
ceramic capacitors, what ballpark can I expect the ESR to be in each 
case?

Antti

"No boom today. Boom tomorrow. There's always a boom tomorrow"
   -- Lt. Cmdr. Ivanova
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