From: M. Adam Davis
Subject: Re: Explosions in electronics.
Date: Sun, 29 Sep 2002 00:06:15 -0400
Organization: University of Michigan Electrical Engineering and Computer Science
X-Newsreader: Forte Free Agent 1.92/32.572
Essentially it's like popcorn. The voltage gets too high and arcs
through the electrolyte, or boils the electrolyte, etc.
I bet your can didn't disintigrate though. You'll be cleaning up the
shop years later and you'll find it. Trust me.
I once had a PC power supply fail catastrophically, destroyed
everything in the case except (thank goodness) the HD. Replaced the
HD for good measure.
When I disassembled the supply I found a cap can embedded sideways
into a screw. They have a lot of power when they go off, and you
wouldn't have seen it unless you had a nice high speed camera
On Sat, 28 Sep 2002 08:39:19 +0000 (UTC), Ian Stirling
>Having just (after noticing that the -5V and -12V rails were very
>noisy on my PC, (500mv switching noise(I earlier replaced all the other
>output caps, after finding they had dried out)) I replaced the smoothing
>capacitors with tantalum electrolytics from the junk box. (tested for
>ESR and voltage).
>A little while later, a really loud bang occurred, and I now can't find
>the steel case of the capacitor :)
>What is the mechanism for the explosion?