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Old 11th February 2005, 06:05 AM   #1
Jye is offline Jye  Australia
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Question Where to get a 25 pin plug?

Hello,

I have a project at uni that calls for an array of electrodes and instead of making one I am hoping there is a plug out there I could use since this would be a lot neater and simpler solution. So I am looking for a male plug with 25 or more pins arranged in a square array e.g. 25 pins in a 5x5 square, any help in locating such a plug would be greatly appreciated.

PS I know there are plugs out there with lots of pins such as LEMO but I am after one in a square array.

Cheers
Jye
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Old 11th February 2005, 09:56 PM   #2
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Square might be a little tough to find.. have you hunted through the Digikey catalogue?

I'd suggest using DB-25 if it's electrical characteristics are suitable; they are dirt cheap.
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Old 11th February 2005, 11:41 PM   #3
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yeah, DB25 -- you can get the male and female connectors dirt cheap from Jameco or Digikey. there's an infinite variety of PCB mounted components. just make sure that the cables you use are "straight-through" --

you can use the older SCSI plug and jack with attendant cables -- the 50 pin types can just be doubled up -- the cables aren't difficult to find surplus. i use Hewlett Packard HP-IB (HP Interface Bus) which are always for sale on EBay.
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Old 12th February 2005, 06:23 AM   #4
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SCSI is also a good cable for many applications, having a much higher bandwidth than DB25 connector+cable. And if you have 25 signals, SCSI is perfect, because you can make every other pin (i.e. one row on your PCB) ground.

I haven't used HP-IB for anything, but I've used my fair share of IEEE-488 connectors. They're obsolete now, though; I'd imagine cables would be hard to find.

Wes
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Old 14th February 2005, 12:55 AM   #5
Jye is offline Jye  Australia
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Thanks for the replies. Still haven't been able to find quite what I'm looking for so I guess the hunt continues.

Cheers
Jye
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Old 14th February 2005, 04:26 AM   #6
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