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- From: szopinsk@picard.med.ge.com (Jerry Szopinski Mfg 4-6983)
- Subject: Re: High Density PCB Connectors
- Message-ID: <1993Jan12.075614.19766@mr.med.ge.com>
- Sender: news@mr.med.ge.com
- Nntp-Posting-Host: guppie
- Organization: GE Medical Systems, Magnetic Resonance
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- References: <C0psD4.62v.2@cs.cmu.edu>
- Date: Tue, 12 Jan 93 07:56:14 GMT
- Lines: 92
-
- Randy Casciola (rwc@ius4.ius.cs.cmu.edu) wrote:
- :
- : Folks,
- :
- : I am looking for high density board stacking connectors.
- : All of my boards will be identical and be about 2.5 inches
- : square. The idea is to pass the control, data, and address
- : busses from one board to the next, indefinitely (at least
- : from a mechanical standpoint). Two possible ways of doing
- : this are:
- :
- : 1. Using through-hole technology, where the pins from the
- : receptacle on the top of the board go through the holes
- : in the board and are soldered to the bottom; the pins
- : continue and are used to mate with the receptacle on the
- : top of the next board. And so on. Kind of like the
- : picture below (Side View).
- :
- : _____
- : ____BOARD______________|___|_<-- HEADER
- : | |
- : | | <-- PINS
- : _____
- : _______________________|___|_
- : | |
- : | |
- :
- : 2. Doing a similar thing, but with surface mount where an
- : SMT receptacle is on the top, and an SMT header on the
- : bottom, and connections are made through the board using
- : vias.
- :
- : ______
- : ________________|____|_
- : |__|
- : ______
- : ________________|____|_
- : |__|
- :
- : The problem with the first method is that I need two rows of
- : 40 pins/row. Since the connector has to be less than 2.5 inches
- : wide, I need .050" pins and I haven't seen anything designed to
- : be stacked like this with .050" centers.
- :
- : The problem with the second is that I need twice as many connectors,
- : and allignment problems may crop up. I found some parts from
- : Samtec that I could use, but they don't provide enough space between
- : boards.
- :
- : So, if anyone knows of a connector I can use, or a company that I
- : could call to get a catalog, I would appreciate hearing from you.
- : Or, if you have a better idea altogether of how to stack these I would
- : like to hear it. It doesn't matter whether you post to this group, or
- : mail me at randy@cmu.edu
- :
- : I already have catalogs from:
- :
- : Samtec
- : Aries
- : Mil-Max Preci Dip
- : Hirose
- : Robinson Nugent
- : Hypertronics
- :
-
-
-
-
- Randy-
-
-
- Did you try AMP or ITT-Canon? AMP is the largest manufacturer of connectors
- in the world, if they don't make what you're looking for noone does. ITT-
- Canon isn't as big but they do make a wide range of connectors that are
- usually used as a second-source to AMP for military purchasing. I've also
- used Hypertronics before and I'm surprised that they don't have what you're
- lookig for(I worked on a project that sounds similar in dimentions to yours
- where we piggy-backed five boards together using Hypertronics multi-pin,
- high-density connectors).
-
- I hope this helps you.
-
-
- Jerry
-
-
- "It riles them to believe that you perceive the web they weave and keep on
- thinking free!" -- Moody Blues
-
-
-
- :
-