Underhood Temperatures

[Byron Smith]

> [ALL of them; that's EVERYTHING that's EVER been under a hood, OK? Oh
> gawd, I just know someone's gonna point out an exception :];
> 
	Well, as long as you knew it was coming... :)

	Actually it's not an underhood exception, just the limit as I've
seen it.
	In the oil industry, down-hole tools are typically rated to 175C
ambient and
	are qualification tested to 180C.  Higher temp tools are in the
works, with qualification ambients knocking on 200C.  Getting the
electronics to live in those environments is neither cheap nor easy, as you
might guess.  Components aren't custom designed, but usually start life in
the Mil-spec bin and get 100% screened for higher temp operation.

	Mosty Toasty,

	Byron






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