Other than tin pest and batteries used in backup systems, I know of no issues with electronics operating at -40. Automobile electronics operate at temperatures well below -40 on a regular basis right here in beautiful Minnesota.

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Jack Olson
Sent: Wednesday, June 01, 2016 12:36 PM
To: [log in to unmask]
Subject: [TN] FR4 in COLD environments

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


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