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Wed, 27 Jun 2007 18:49:29 -0400 |
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June 27, 2007
See IPC/7711/7721A for details on how to attach wires to SMT PADS. With
respect to supporting wires to the PADS, if your equipment is subject to any
shock or vibration requirement, I recommend you secure the end of each wire
that connects to the PAD using some type of adhesive. We use Dow Corning
RTV 3145 which is a silicone based adhesive, and apply it within 1/2 inch of
the wire end.
>From: Lenny Carter <[log in to unmask]>
>Reply-To: TechNet E-Mail Forum <[log in to unmask]>, [log in to unmask]
>To: [log in to unmask]
>Subject: [TN] soldering wires to SMT pads
>Date: Wed, 27 Jun 2007 16:49:44 -0500
>
>We have a pcb that is powered through a harness and the bottom of the pcb
>must be perfectly flat with no 'lead-protrusions" so we are soldering
>harness wires into blind holes. the pcbs are very expensive and difficult
>to make.
>we wonder about soldering harness wires directly to SMT pads on top of the
>pcb? What pad designs? and a big concern over strain relieving the
>harness by attaching it to the pcb, but have really no room on the end of
>the pcb for other than dots of adhesive, etc...
>Can anyone point me in the right direction for information?
>Thanks,
>Lenny Carter
>Design Engineer
>ERG, Inc.
>
>
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Technet Mail List provided as a service by IPC using LISTSERV 15.0
To unsubscribe, send a message to [log in to unmask] with following text in
the BODY (NOT the subject field): SIGNOFF Technet
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To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest
Search the archives of previous posts at: http://listserv.ipc.org/archives
Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815
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