Lou Hart wrote:
>
> TechNetters, please comment.  A colleague in design came to me with a proposal to make a mid-plane, as opposed to a backplane, board.  It will have connectors press fitted from both sides.  The problem is the connectors on both sides will go into the same holes.  The connector tails are 0.11 inches long (whatever that is in mm) and the board is 0.25 inches thick (6.4 mm, if I recall).  So there will be a little space between the tail ends when the connectors are pressed in from each side.
>

        Hi, Lou -

        I'd be nervous about this method, especially if any kind of
        deflecting force could be applied to the exposed end of the
        pins.

        We've been involved in a number of this kind of application
        but using the style of connection that stakes a long pin
        all the way through and then snap a connector body over them
        from either side.  Teradyne comes to mind but I'm sure there
        are other sources as well.

        HTH,
--

      Jeff Seeger                         Applied CAD Knowledge Inc
      Chief Technical Officer                  Tyngsboro, MA  01879
      jseeger "at" appliedcad "dot" com                978 649 9800

##############################################################
TechNet Mail List provided as a free service by IPC using LISTSERV 1.8c
##############################################################
To subscribe/unsubscribe, send a message to [log in to unmask] with following text in
the body:
To subscribe:   SUBSCRIBE TECHNET <your full name>
To unsubscribe:   SIGNOFF TECHNET
##############################################################
Please visit IPC web site (http://www.ipc.org/html/forum.htm) for additional
information.
If you need assistance - contact Keach Sasamori at [log in to unmask] or
847-509-9700 ext.5315
##############################################################