From: "C" <email@example.com>
References: <firstname.lastname@example.org> <email@example.com> <firstname.lastname@example.org> <email@example.com>
Subject: Re: what is 100R mean in a schematics?
Date: Sat, 4 Jan 2003 14:44:37 +0200
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Err...that's nF actually....I think there's something wrong in my head!!!
"C" <firstname.lastname@example.org> wrote in message
> My apologies, you are correct. The one cap was 22pF and the other 220pF.
> Error in the typo.
> BTW, I did measure them with mu miltimeter...I have a digital one that has
> plug where you put in the legs of the cap and it does the rest. Thus, my
> question was not so much about which cap is which, but what do the
> Thanks guys,
> "Stef" wrote in message
> > Hans-Bernhard Broeker wrote:
> > > In comp.arch.embedded Chris Ainslie <email@example.com> wrote:
> > >
> > >> told me where C3 and C4 should go and that C3 was a 22uF ceramic cap
> > >> and C4 was a 220uF ceramic cap.
> > >> Now, one of them was a tiny yellow one with a shiny coating and had
> > >> the number 224 on it. The other was one of those orange disc type
> > >> ones with a matt finish and on it, it said 223Z.
> > >
> > > In the light of earlier posts in this threads, the answer should be
> > > pretty clear: 224 means 22*10^4 in some unit, and 223 means 22*10^3 in
> > > (hopefully) the same. From context, the unit is nanofarads, i.e. 224
> > > is 22*10^4 nF = 220 uF.
> > >
> > 220uF is awfully big for a ceramic cap, it must probably be 220nF. Then
> > 'some unit' will be pF, which is a common value for "some unit" ;-)
> > Stef