To: | "Amps Amps" <amps@contesting.com> |
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Subject: | Re: [Amps] Power Transistor Question -- 2SC5125 |
From: | "Tom W8JI" <w8ji@w8ji.com> |
Date: | Mon, 19 Feb 2007 13:59:25 -0500 |
List-post: | <mailto:amps@contesting.com> |
> The figures I remember on semiconductor temperature and > reliability go something like this: > 1. Typical lifetime at junction temperature of 200 > degC is somewhere in 10,000 hour range > 2. Lifetime doubles for each 10 degC drop in > temperature I actually think it is a good thing when someone messes with a power limit control and blows up his radio. Not a bad thing at all!! It is a bad thing when he turns it up and the PA doesn't fail. Now that is sad for all of us. 73 Tom _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps |
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