Usenet.com

www.Usenet.com

Group Index

Sci Thread Archive from Usenet.com

<-- __Chronological__ --> <-- __Thread__ -->

Re: Replace tantalum caps with aluminum?



"CWatters" <[EMAIL PROTECTED]> wrote in message
news:[EMAIL PROTECTED]
> Electrolytics can have low lifetime specifications. I once saw a some with
a
> spec of only 1000 hours. Thats about 41 days! Must have been a mistake?

I believe I've read that lifetime doubles for each 10C under the rated temp.
So if they were 1000 hours at 85C, then when run at 25C they'd be good for
64k hours.  That's 7.5 years of continuous operation.

So they probably put them in TV motherboards at 35C, and then the TV dies
after 3 years and the owner buys a new one.  The cap not only saves you
money, it *earns* you money!





<-- __Chronological__ --> <-- __Thread__ -->


Usenet.com



Please check out one of the premium Usenet Newsgroup Service Providers below for access to Usenet.