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Old 18th June 2008, 07:30 PM   #1
h_a is offline h_a  Europe
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Default Attach single wire to pcb?

Dear folks,

I have a strange problem!

For my pcb I'm searching for a way to connect a single cable/wire, however I want to avoid soldering it directly into a wire pad.

Well, terminal block you say - but these guys all start from 2 rows and I need only one row and further I'm limited on space (otherwise I would just parallel both rows).

A plug, maybe? Well, I would like to avoid crimping as well.

What do you use for that?

It's intended for smallish current (several amps) and should be as small as possible (about 10x5mm or less would be nice).

I know I don't have so many wishes free, but if one could easily buy it e.g. at Digikey?

Thank you! Have fun, Hannes
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Old 18th June 2008, 08:19 PM   #2
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Old Tek scopes and other test equipment used a closed end ferrel (sp?) that soldered to the end of the wire, and a little tubular socket that soldered into the board. About as simple as one can get, though I don't have a manufacturer or part number.
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Old 18th June 2008, 08:48 PM   #3
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Have you ever looked at dismantling a computer's Molex connector?
The metal pins can be removed form the plastic housing and they can then push- fit together. Of course, this would be a very compact solution but you'd need to heatshrink or find other ways to insulate the metal.

I'm assuming it's not too high voltage?
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Old 19th June 2008, 07:23 AM   #4
h_a is offline h_a  Europe
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Thank you for your help!

I will see if I can find that at Digikey

Though I still hope somebody comes up with a simple and small connector? Has the world no space for space efficient single wire-to-board connectors?

So many people here do their own pcbs, what do you use?

Have fun, Hannes
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Old 19th June 2008, 07:50 AM   #5
Nordic is offline Nordic  South Africa
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Man, I would say go for a plain old PCB spade, easy to connect and disconnect.... I know it is not exactly what you wanted, but it seems like the smallest compromise...
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Old 19th June 2008, 08:29 AM   #6
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0.1inch pitch PCB pins.
Sockets are available in single upto 4way
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Old 19th June 2008, 10:15 AM   #7
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Thank you for your replies!

Indeed a pcb-spade was exactly what I thought! Pins would also be an option, however they always require a socket - for final assembly one could solder the wire onto the spade directly.

As it's intended for a ground connection I want a really good connection

Thank you for your help!

All the best, Hannes
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Old 19th June 2008, 10:48 AM   #8
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Spade contacts is nice, check picture below.
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File Type: jpg rfb02r0_overview[1].jpg (47.2 KB, 322 views)
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Old 19th June 2008, 10:51 AM   #9
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5mm.
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File Type: jpg connect.jpg (50.7 KB, 288 views)
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Old 20th June 2008, 11:50 AM   #10
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Ok spades it is then!

Thank you for your help! Have fun, Hannes
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