Jack,
I think your question is stated too broadly.  What aspect are you talking
about?

As others have stated, most automotive is tested to -40C, or -50C if you
come from the state just north of me - Land of 10,000 frozen moose.

Aerospace commonly goes down to -55C and in some of the more severe tests,
down to -65C.  I think you will find that reliability is more related to
the rates of transition between extremes than to the extremes itself.


Doug Pauls
Principal Materials and Process Engineer
Rockwell Collins

On Wed, Jun 1, 2016 at 12:35 PM, Jack Olson <[log in to unmask]> wrote:

> Has anyone ever heard anything about the reliability of circuit boards in
> cold environments?
> (continuous -40C)
> I couldn't find anything on TechNet or in the Printed Circuits Handbook...
>
> thanks,
> Jack
>
>
> ______________________________________________________________________
> This email has been scanned by the Symantec Email Security.cloud service.
> For more information please contact helpdesk at x2960 or [log in to unmask]
> ______________________________________________________________________
>


______________________________________________________________________
This email has been scanned by the Symantec Email Security.cloud service.
For more information please contact helpdesk at x2960 or [log in to unmask] 
______________________________________________________________________