From: "C" <firstname.lastname@example.org>
References: <email@example.com><firstname.lastname@example.org> <email@example.com>
Subject: Re: what is 100R mean in a schematics?
Date: Sat, 4 Jan 2003 11:53:30 +0200
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Thank you John,
That was my error.
Thanks for the description about *how* to read the values for the future.
"John Woodgate" wrote in message
> I read in sci.electronics.design that Chris Ainslie <firstname.lastname@example.org>
> wrote (in <email@example.com>) about 'what is 100R mean in a
> schematics?', on Fri, 3 Jan 2003:
> >Ok, on that note, I have a question....I'm not very clued up here!
> Indeed. But we can help.
> >I was recently constructing a kit for an electric fence and the schematic
> >told me where C3 and C4 should go and that C3 was a 22uF ceramic cap and
> >was a 220uF ceramic cap.
> Either they are not ceramic or the values are wrong. While ceramic
> components of those values may be available at a price, they are very
> special and would not be used in an electric fence controller.
> >Now, one of them was a tiny yellow one with a shiny coating and had the
> >number 224 on it.
> That is 220 000 pF = 220 nF = 0.22 uF.
> >The other was one of those orange disc type ones with a
> >matt finish and on it, it said 223Z.
> That is 22 000 pF = 22 nF = 0.022 uF. The 'Z' describes the tolerance,
> which is +80/-20%
> The physical descriptions are consistent with the parts being ceramic
> Regards, John Woodgate, OOO - Own Opinions Only.
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