I remember something about tantalum caps needing to be used at a goodly
fraction of their rated voltage.  I.E. on a 5V bus a 25V cap would fail
sooner than a 10V cap.

Does anyone else remember that?

Sherpa Doug

> -----Original Message-----
> From: Roman Black [mailto:fastvid@EZY.NET.AU]
> Sent: Monday, December 17, 2001 9:18 AM
> To: PICLIST@MITVMA.MIT.EDU
> Subject: Re: [EE]: Aluminum caps vs. Tantalum
>
>
> Russell McMahon wrote:
>
> > If you want to produce a product which MIGHT smell, shriek,
> explode and
> > catch fire and/or short out various parts of its circuitry
> at indeterminate
> > future dates then Tantalum caps are definitely the way to
> go ! Because this
> > isn't what happens in all cases and because, if you design
> well and are very
> > careful and lucky you may not have any problems, you are
> now liable to have
> > people telling you what fine caps Tantalums are ;-)
>
> I've seen resistors smoke and explode a lot
> too, maybe we should all stop using resistors. ;o)
> I don't know what bad experiences you had with
> the tantalums but I haven't seen any trouble with
> them. But then I never use a 16v cap on a 16v
> power supply rail.
> -Roman
>
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