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April 2008

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Subject:
From:
"Sauer, Steve (Xetron)" <[log in to unmask]>
Reply To:
TechNet E-Mail Forum <[log in to unmask]>, Sauer, Steve (Xetron)
Date:
Thu, 10 Apr 2008 06:59:44 -0500
Content-Type:
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text/plain (85 lines)
The connector is ~ 2.5" long (3 banks of 16 pin pairs per side).
The PCB is 6 layer construction using FR-406.
Thanks for your input.

Steve  

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of John Burke
Sent: Wednesday, April 09, 2008 5:16 PM
To: [log in to unmask]
Subject: Re: [TN] Samtec QMSS-DP Series Differential Pair Connectors

How long is the connector?. It is far more likely you have a connector /
board coplanarity issue.

John

 
 
John Burke
 
(408) 515 4992
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Sauer, Steve
(Xetron)
Sent: Wednesday, April 09, 2008 11:24 AM
To: [log in to unmask]
Subject: [TN] Samtec QMSS-DP Series Differential Pair Connectors

Good Afternoon,
Does anyone have any experience with the subject connectors?
I'm currently evaluating these connectors (the mate is QFSS series) for
a new application and am experiencing issues with coplanarity of the
leads resulting in random nonsoldered pins.  The coplanarity is listed
on the spec sheet as .004" (.10mm) max and I'm using a 6mil stencil with
1:1 apertures (as recommended by the mfr).
Thanks in advance for your assistance.

Steve

Steve Sauer, CEPM
Sr. Project Engineer
Northrop Grumman Xetron
Cincinnati, OH
513-881-3368
[log in to unmask]

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