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May 2007

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Subject:
From:
Phil Nutting <[log in to unmask]>
Reply To:
TechNet E-Mail Forum <[log in to unmask]>, Phil Nutting <[log in to unmask]>
Date:
Mon, 7 May 2007 16:47:50 -0400
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Inge,

Thanks, that makes a lot of sense.  I'll factor that into our decisions.

Phil  

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Hfjord
Sent: Monday, May 07, 2007 4:44 PM
To: [log in to unmask]
Subject: [TN] SV: [TN] SMT connectors

Phil,

I was responsible for connectors for some years and I've seen a lot of
D-subs in all our products the last 20 years. Nutting has happened with
D-sub connectors, they are extremely reliable. Our favorite is
Amphenol's 17TW series, which have signal, power and coax in one and the
same body. They are very, very rigid. Also have a look at the new
Amphenol series 17 BH/HD with low insertion force contacts. Even these
are very rigid connectors. Then we have Amphenol's SM2 series for SMT.
After decades of PTH mounting, we, as well as others, had to try SMT for
MIL and SPACE and advanced Telecom. Many old engineers doubted that the
SMT would make it, but their fear was maybe little exaggerated. So, we
use D-sub SMT even for harsh environment products today, and I have not
heard of any problems.



Inge


-----Ursprungligt meddelande-----
Från: TechNet [mailto:[log in to unmask]] För Phil Nutting
Skickat: den 7 maj 2007 18:05
Till: [log in to unmask]
Ämne: [TN] SMT connectors

Hi Techies,

What choices have you made regarding SMT connectors?

We are designing some new SMT boards and could put SMT connectors on to
reduce or eliminate a wave or hand solder step.  I am looking at
D-subminiature connectors and 0.100 on center ribbon connectors.  Each
are available in SMT.  My concern is that the SMT is less durable in a
high usage or high vibration/shock environment.  Saving a step isn't
worth it if it created more long term failures.

Thanks in advance.

Phil

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