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August 2021

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Subject:
From:
"Rivera, Raye" <[log in to unmask]>
Reply To:
TechNet E-Mail Forum <[log in to unmask]>, Rivera, Raye
Date:
Wed, 25 Aug 2021 19:22:10 +0000
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Hello Technetizens,

Does anyone know of a spec or criteria for acceptable strain or strain rate for a PCBA?

We are using strain gauges to understand how much strain is placed on a PCBA inside one of our products during typical shipping processes.

I know that IPC-TM-650, 2.4.41.2A tells how to measure coefficient of thermal expansion by this method, but I can't find anything about mechanical force, or how much is too much.

Best regards,
Raye Rivera
Quality Manager

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