colindorward at gmail.com
Fri May 8 18:31:07 CEST 2020
Thanks for spelling that out for me, Steve!
It only occurred to me to try 10uf ceramic when I noticed them available in
the "basic parts" catalog at JLCPCB.
The one I'm looking at is "CL21A106KAYNNNE". It's $0.03, 25v, X5R, 0805.
I'm looking through the datasheet
can't find anything to describe it's voltage dependent characteristics. Do
I not know what I'm looking for, or do they leave that bit out?
I see they also have a 50v 1206 variety at $0.07.
Mark's message just in, thanks for sharing. Do you remember what voltage
those 22uf 1206's were?
On Fri, May 8, 2020 at 8:42 AM Ingo Debus <igg.debus at gmail.com> wrote:
> > Am 05.05.2020 um 20:08 schrieb mskala at ansuz.sooke.bc.ca:
> > On Tue, 5 May 2020, Ingo Debus wrote:
> >> Not necessarily. I once repleced a few electrolytics in a real old radio
> >> (from the sixties or so). Some had become leaky but others had a much
> >> higher capacitance than the value printed on them.
> > Unless you have measurements of where they were at in the sixties, I
> > wouldn't conclude too much from this. Electrolytic caps often have very
> > wide tolerance ranges, like -20% +100%, so if the printed value is
> > and it now reads 12000uF, it could actually have started at 20000uF and
> > lost 40% of its initial value; or it could have started at 12000uF and
> > suffered no aging at all.
> Ha, I still have some of those caps. The most extreme part has „500/3“
> printed on it (I suppose that means 500 µF, 3 volts), and it measures about
> 1570 µF with an Agilent DMM.
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