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From: "Søren Møller"
Subject: Re: Electronic News story: Leaky capacitors shorting circuits; problem spreads
Date: Mon, 4 Nov 2002 10:26:06 +0000 (UTC)
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"Winfield Hill" wrote in message
> Søren A.Møller wrote...
> > I know there has been problems in consumer equipment for years; I can't
> > keep count on the number of capacitors I have changed, but there has
> > been a more recent problem with low-ESR capacitors. See these articles:
> > (links copied from www.overclockers.com)
> > http://www.ttiinc.com/MarketEye/zogbi_on_passives_20021014.asp
> > http://www.niccomp.com/taiwanlowesr.htm
> > It seems there has been some problems with sub-standard eloctrolyte
> > for low-ESR capacitors.
> Interesting, the claim in these stories is that the fault lies with
> an improperly-designed substitute for Rubycon P-50 type water-based
> electrolyte. It's said the unstable replacement electrolyte creates
> hydrogen gas, creating enough pressure after hundreds to thousands
> of hours of use to cause rupture of the capacitor... How does this
> relate, or does it? to Electronic News' story of excessively-small
> capacitors (8mm diameter rather than 10 or 12.5mm) being at fault.
Just to add a little insight I have in this story:
I read this article by Carey Holzman on www.overclockers.com:
And sent him a mail oct.14 with some more info regarding ESR, heat,
current and capacitor life.
I then received a mail from Ed Sperling, editor in chief of Electronic
Unfortunately I didn't read it until oct.28 where I replied and referred
to the same two links I posted on sed earlier.
On oct.28 the Electronic News article was put on their web site:
PS.: Sorry for the delay, my ADSL is down and I can only reach the
internet from work.
Sorry for the formatting, it seems Opera for Solaris and Mailgate
doesn't agree on linefeeds.
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