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Reply To: | TechNet E-Mail Forum. |
Date: | Thu, 4 Sep 2003 17:57:09 -0500 |
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Jim, IPC-4101/22 covers GBN material.
Best regards,
Dave Bergman, IPC
-----Original Message-----
From: Jim Geer [mailto:[log in to unmask]]
Sent: Thursday, September 04, 2003 5:37 PM
To: [log in to unmask]
Subject: [TN] MIL-P-13949 GBN
We have a qualified product based on using GBN board material per
MIL-P-13949. Upon investigating IPC-4101 I notice that /22 is NEMA
G-11 - GB (no reference to 13949) and that /21 is MIL-S-13949/04 -
GF/GFN/GFK. The issue I have is that GB has a much higher temperature
range than GF.
My question is what is the current material spec that corresponds to the
original 13949 GBN?
Thank you for your assistance.
Regards,
Jim
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