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Date: | Fri, 26 Oct 2007 16:10:33 -0400 |
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I don't think there was ever a GE material--GF and GB were epoxy glass
and GP was PTFE. You should be able to get a copy of the MIL-P-13949 at
http://assist.daps.dla.mil search on the document number There should
also be a reference to the replacement specification on file as well.
Jeffrey McGlaughlin, CID
Engineering Designer
Battelle
505 King Avenue
Columbus Ohio 43201-2693
(614)424-7582 Phone
(614)458-7582 Fax
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of ekalgren
Sent: Friday, October 26, 2007 3:03 PM
To: [log in to unmask]
Subject: [TN] PCB Material Question
This one should be easy enough for Friday.
I've got a drawing calling out the following material:
GE062 C2/C2 1A per MIL-P-13949
I've worked it out so far to be Type GE 0.0620 thick (they left out a
0),
with 2 oz copper on each side.
I can't figure out the 1A. I think it should be A1 for pits/dents class
A,
and class 1 for thickness tolerance.
Does this sound right? Also, has anything replaced Mil-P-13949? Is
type GE
material commonly available?
Thanks!
Eric Kalgren
Electrical Engineer
Cobham Defense Electronic Systems
Continental Microwave Division
11 Continental Drive
Exeter, NH 03833 USA
Tel: 603-775-5200
Fax: 603-775-5201
E-mail:[log in to unmask]
Website: <http://www.cobhamdes.com/> http://www.cobhamdes.com
<mailto:[log in to unmask]>
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