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RE: Use of Tantulums - DRSSTCs



Original poster: "McCauley, Daniel H" <daniel.h.mccauley@xxxxxxxx>

> > Tantalum capacitors are used almost everywhere.  In my line
>of work,  > which includes lately  > power system (avionics)
>work on the new F/A-22 Raptor as well as naval /  > ground
>based military radar  > systems, tantalum capacitors are used
>quite frequently.
>
>If I remember correctly from my military avionic experience
>tantalum caps were initially not used because of the life
>issues.  Eventually some versions did got approved. A mil spec
>tantalum cap may have a very different internal construction
>than a bead one.
>
>Bob

I believe the problem with past tantalum caps were the "wet" tantalums.
Also, most of the tantalums we use now for designs are COTS (commercial
off the shelf) tantalums.