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June 2007

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Subject:
From:
ekalgren <[log in to unmask]>
Reply To:
TechNet E-Mail Forum <[log in to unmask]>, ekalgren <[log in to unmask]>
Date:
Mon, 25 Jun 2007 15:12:05 -0400
Content-Type:
text/plain
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text/plain (109 lines)
How about Loctite and nylon washers?

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
 
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Spann, Phillip J
AMRDEC/Yulista
Sent: Monday, June 25, 2007 3:01 PM
To: [log in to unmask]
Subject: Re: [TN] 25 Pin Micro-D Connector (UNCLASSIFIED)

Classification:  UNCLASSIFIED 
Caveats: NONE

Nice and tight connector with mounting holes in a real bad place.  We
had to design a .004" FR4 insulator as another drawing and callout and
detail where to place it on our assembly drawing.  Funny how the -DTL
spec shows
these holes a mile away from pins 1 and 13 when they're really <.01"
away.  Good luck with your effort.

Phillip Spann
Yulista
Huntsville, AL  

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Marsico, James
Sent: Monday, June 25, 2007 1:41 PM
To: [log in to unmask]
Subject: [TN] 25 Pin Micro-D Connector

Hello Technet:

Perhaps one of you has come across this issue before.  We're specifying
the use of a 25 pin Micro-D connector (MIL-DTL-83513/10C), PCB mount.
The connector body has #2-56 inserts, so the mounting hardware (#2
screws) are installed from the solder-side of the PWB into the
connector.  The way this connector is designed, the mounting holes are
located .083" from the 2 outer-most PTHs in the center row.  The
mounting screw and associated washer will overlap these 2 PTHs on the
solder side.  Has anyone used these connectors in the past and what did
you do to prevent the hardware from contacting the PTHs?  We're thinking
a spacer to raise the washer/screw up off the board. 

 

Jim Marsico

EDO Corporation

1500 New Horizons Blvd.

North Amityville, NY 11701

631-630-5079

[log in to unmask]

 


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