[SI-LIST] Re: Reset problem with power supply
- From: "Kevin G. Rhoads" <kgrhoads@xxxxxxxxxxxx>
- To: steve weir <weirsi@xxxxxxxxxx>
- Date: Mon, 08 Dec 2008 14:57:39 +0000
Steve Weir wrote:
>In my limited exposure to military, AFAIK Al electrolytics are avoided
>in favor of tantalums.
Seconded for NASA sounding rocket stuff. Although we are university science
payload electronics, and our electronics are not absolutely required to meet
the
same specs as the NASA stuff, we are strongly encouraged to meet certain specs
that have been found to improve reliability. Using hermetically sealed
tantalum
electros vs any other electrolytic caps is one of the "suggestions".
I find I am learning whole new ways of improving reliability, first by working
with NASA and second having designs built (in part) by students. Designing
something student-proof is a real hat trick that I am just beginning to get a
handle on. (Not to run down the students, they are dedicated, interested and
really do their best -- but they are still learning, so they expose any
assumptions
you have made about the knowledge of the assembly crew.)
Sincerely
Kevin
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