Phil
SMT connectors have been used in abundance in the Telecom industry for many
years going back to at least 1985. These connectors are usually 96 pins, in
cases more. This is considered by most to be a robust technology when
properly designed and assembled.
Best regards
Lee
J. Lee Parker, Ph.D.
JLP Consultants LLC
804 779 3389
----- Original Message -----
From: "Hfjord" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Wednesday, June 21, 2006 1:58 PM
Subject: Re: [TN] Connectors - Surface Mount versus Thru-hole
> Phil,
>
> we've been using SMT many, many years for MIL applications, such as
> radar,
> and applications for tanks, missiles and other jumping, vibrating and and
> shaking stuff. We perform nasty vibraion and shock tests, and to my
> knowledge no problems have been reported the last 10 to 15 years. The most
> advanced connectors have 600 pins! So, generally spoken, SMT connectors do
> well with SnPb.
>
> Ingemar Hernefjord
> Ericsson Microwave Systems
>
>
> ----- Original Message -----
> From: "Phil Nutting" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Thursday, June 08, 2006 3:36 PM
> 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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