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June 2006

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Subject:
From:
Steve Gregory <[log in to unmask]>
Reply To:
TechNet E-Mail Forum <[log in to unmask]>, Steve Gregory <[log in to unmask]>
Date:
Thu, 8 Jun 2006 09:31:31 -0500
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text/plain
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text/plain (118 lines)
Hi again Phil,

I looked at them and I feel better. I've seen similar types of headers
used quite a bit. But even Samtec doesn't have any test reports on these
headers.

If you're going to be plugging something into these headers that won't
be seeing a whole lot of stress, then I think these will work fine.

-Steve Gregory- 

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Phil Nutting
Sent: Thursday, June 08, 2006 9:00 AM
To: [log in to unmask]
Subject: Re: [TN] Connectors - Surface Mount versus Thru-hole

I guess I should have given the connector part number, Samtec
JW-04-04-T-S-XXX-XXX-VS.

The pins bend outward alternately on each side. 

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Steve Gregory
Sent: Thursday, June 08, 2006 9:49 AM
To: [log in to unmask]
Subject: Re: [TN] Connectors - Surface Mount versus Thru-hole

Mornin' Phil,

From your description, it sounds like the pins would wind-up with
nothing more than butt-joints. If it were me, I would be pretty worried.
What is being plugged into these connectors?

A lot of SMT connectors that I've seen have some sort of separate metal
tab at each end that is molded into the body and soldered to help with
the stresses and protect the solder joints of the signal pins. It's
either that or hardware that is installed at each end after soldering to
protect the signal pins solder joints.

I would choose PTH over butt-joints...

-Steve Gregory-  

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Phil Nutting
Sent: Thursday, June 08, 2006 8:37 AM
To: [log in to unmask]
Subject: [TN] Connectors - Surface Mount versus Thru-hole

Good morning colleagues,
 
This is a question of robustness.  I have 3 and 4 pin connectors with
0.045" square pins that are on 0.156" centers.
 
I have a choice between SMT and PTH versions.
 
I see the SMT connectors more manufacturing friendly, but I'm concerned
I will meet resistance in using these as there is the belief that they
will not withstand handling shock in the finished product, a shoe box
sized device that is shipped via UPS, DHL or FedEx.
 
What sage wisdom do you have to share?
 
Phil Nutting

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