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May 1997

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Subject:
Component Rated Temperatures
From:
Hans Ohman <[log in to unmask]>
Date:
Thu, 15 May 97 16:57:00 DST
Content-Type:
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Ive been reviewing a CCA that will be using commercial components at   
elevated temperatures.  I've typically found that commercial ICs are   
rated from 0 oC to 70 oC ambient temperature.

Does anyone have information on what "ambient" is? i.e. natural or forced   
convection

If forced convection, what air velocity, volume flowrate or mass   
flowrate?

Is there a standard test used for rating components at 70 oC ambient and   
if so, could someone direct me to where I can find information on that   
test.

Thanks for the help.


Hans Ohman
DY4 Systems Inc.
[log in to unmask]  

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