[sdiy] tantalum

[harry]

Well allrightey....

when it comes to BIG electrolytic caps... all bets are off. They will blow in
whatever
direction suits their fancy. If the rault is caused by voltage breakdown... the
ensuing
arc plasma cuts right through the can.

I always see the little ones (maybe up to 470uF / 50V) blow the top of the can
off.

Probably... they cannot fit enough powder in the little ones to make more than a
firecracker.

H^) harry

GothGeek Sysadmin wrote:

> On Thu, Jan 31, 2002 at 11:30:23PM -0500, harry wrote:
> > I've never seen the little cross in the top of the cans blow open. The
> > vent is at the bottom... and usually the whole can gets launched as
> > one piece.
> >
> > Is that what the cross is really for ???
>
> Actually, its so they'll tear open like a Black Talon bullet so it can get
> through your safety glasses.
>
> I had a 10000uf filter cap go off like that once.  Usually they have a little
> relief valve next to the terminals but this was a large PC board mount
> Panasonic with the Patented Flesh Tearing Crosshatch on the top.
>
> I wondered about two things right after it went off:
>   1. Have they tried lauching satellites on one?
>   2. What idiot hooked up that Bridge Rectifier backwards?
>
> The idiot was much more carefull the next time and in fact still has all his
> fingers so he can type this...
>
> --
>  ------------------------------------------------------------------------
>  - Tom Arnold -       When I was small, I was in love,                  -
>  - Sysabend   -       In love with everything.                          -
>  - CareTaker  -       And now there's only you...                       -
>  --------------         -- Thomas Dolby, "Cloudburst At Shingle Street" -

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