[sdiy] Connector Quandary

Paul Schreiber synth1 at airmail.net
Thu Jun 16 07:22:58 CEST 2011

Look around Samtec www.samtec.com

Paul S.

----- Original Message ----- 
From: "James Coplin" <james at ticalun.net>
To: <synth-diy at dropmix.xs4all.nl>
Sent: Thursday, June 16, 2011 12:07 AM
Subject: [sdiy] Connector Quandary

> I've hit another snag with my SEM project.  The original Molex connectors
> on the SEM are junk.  They are flimsy, last for only a few insertions, and
> pretty much snap off if you so much as look at them.  My thought was to
> just pull them off and replace them with standard AMP or Molex headers.
> However, while they are standard .156" spacing, they use much smaller pins
> than the standard .156" headers.  I thought of opening the holes on the
> PCB slightly to accommodate new connectors but upon examination of the
> PCB, I'm not sure it would survive such an operation.  A scan of the
> standard catalogs hasn't turned up anything of much help.  So...
> Does anyone know of a .156" header (I need 3 and 4 pin varieties) that has
> pins that are the size of the standard .1" headers?  Failing in this, I'm
> going to have to solder my wire connections directly to the SEM which
> makes it extremely difficult to service in the future as even the power
> would need to be hard wired. So...
> Other options?  Recommendations for a mid wire type connector so if I
> needed to remove the SEM from the rack to repair it I could unhook it
> without unsoldering a rat's nest of connections?
> This project has become one road block after another in the midst of a
> swamp.  Thanks as always - I'm sure the collective has some decent
> solutions!
> James R. Coplin
> =======================
> Doctoral Candidate
> University of Minnesota
> Department of History
> =======================
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