Re: high curent PCB connector

john larkin <JL@gct.com> wrote:

Does anyone have a favorite high-current PCB connector?
 
I'd like to get 20 wires into a pluggable connector, to go on a module
like this:
 
https://highlandtechnology.com/Product/P948
 
We need at least 7 amps per contact.
 
That litle green Phoenix connector is cool. Wires screw into it
without tooling, and it's easy to mate and unmate. But it's only 5
pins.
 
I was planning to use four of them, with two on a baby board, but that
idea wasn't popular.

In the past I have used PCB-mounting screw terminal blocks with
wire-protection leaves.  I had a whole batch of surplus stock, some were
in groups of 4, others in groups of 6 or more.  The trick is to put a
row of blocks on the edge of the PCB but screw into them the solder pins
of another set of blocks.  The wires are termnated in the second set of
blocks which can then be released from the ones on the board as a single
unit.  (Lacing the wires to form a solid cable will help keep the blocks
together in the right order.)

It doesn't prevent the whole thing from being assembled one step out of
line, but that could be prevented by having some solid obstruction at
each end of the row.  As the machine I built had several different
boards, I made sure the pairs of connectors were drilled with a pattern
of shallow indentations which were filled with coloured paint to
indicate which ones should be mated together.


--
~ Liz Tuddenham ~
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www.poppyrecords.co.uk