Mesa Terminal Block source

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27 Oct 2020 03:46 - 27 Oct 2020 04:19 #187366 by BeagleBrainz
I hope I'm not out of line by asking this in the public forum.

For my new control cabinet I've designed some custom PCBs to make wiring a little easier. Basically some compact DB-25/15/9 breakout boards and another board to simplify the wiring for a few self holding relays. All have been designed to take 3.5mm pitch screw connectors but since I can be a little persnickety about things being the same I was wondering if there are some part numbers for the PCB headers & plug in terminals used on the mesa board ie: the green\orange connector on the 7i76.
I've had a look at some products from Dinkle, Weidmuller & Phoenix Contact but can't seem to find something that suit.

Just a rendering from Kicad.

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Last edit: 27 Oct 2020 04:19 by BeagleBrainz. Reason: Add picture

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27 Oct 2020 04:51 #187367 by aleksamc
Replied by aleksamc on topic Mesa Terminal Block source
For example 5-pin twin:
15EDGK-3.5-05P-14-00AH
15EDGLC-3.5-05P-14-00AH or 15EDGRC-3.5-05P-14-00AH

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27 Oct 2020 05:42 - 27 Oct 2020 05:48 #187372 by BeagleBrainz
Thanks
Close but not quite, the end overhang, if you measure from the centre of the last pin, is more than half the pin pitch. So unlike the one mesa uses you wont be able to stack say, a 4 way, a 2 way and a 4 way plug in a 10 way header.
Upon further searching Wurth may have the one's I'm after. In the pdf it's the 1.75mm dimension I'm talking about.

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Last edit: 27 Oct 2020 05:48 by BeagleBrainz.

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27 Oct 2020 05:48 #187373 by rodw
Replied by rodw on topic Mesa Terminal Block source
Beagle, They are a pretty standard connector. I have bought RS components plugs that fit the Mesa 7i76e sockets. Lete me look for you..

Also I'm keen to know where you make your circuit boards. I need one too!

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27 Oct 2020 05:57 #187374 by rodw
Replied by rodw on topic Mesa Terminal Block source
Here it is.
au.rs-online.com/web/p/pcb-terminal-blocks/8971017/?sra=pstk
These are cheap and fit the Mesa boards so just use their mate

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27 Oct 2020 06:16 #187376 by BeagleBrainz
Thanks Rod,
Still close but has the same issue as the ones aleksamc mentioned.

I've used www.elecrow.com/ about 3 times in the past not including my current order, really happy with the quality and time from order to delivery is pretty good. Haven't ordered anything over the size of a BBB size board.
I used jlcpcb.com/ as they had a offer for first time orders. Quite happy with them as well.

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27 Oct 2020 06:34 #187378 by rodw
Replied by rodw on topic Mesa Terminal Block source

Thanks Rod,
Still close but has the same issue as the ones aleksamc mentioned.

At the cost, you might be better off with just using the RS Pro ones and buy the right sockets with matching plugs like Mesa does...


I've used www.elecrow.com/ about 3 times in the past not including my current order, really happy with the quality and time from order to delivery is pretty good. Haven't ordered anything over the size of a BBB size board.
I used jlcpcb.com/ as they had a offer for first time orders. Quite happy with them as well.


Thanks, I want to make a board to play with a Mesa 7i73 as it only has headers on the board.

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27 Oct 2020 07:44 #187384 by BeagleBrainz
Do you use Kicad, Eagle or other ?

I still have an old copy of Autotrax that I use if I want to make a quick and dirty pcb at home.

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27 Oct 2020 07:56 #187386 by rodw
Replied by rodw on topic Mesa Terminal Block source

Do you use Kicad, Eagle or other ?

I still have an old copy of Autotrax that I use if I want to make a quick and dirty pcb at home.


I was going to try my hand at Fusion 360 seeing I have a legal license..

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27 Oct 2020 14:53 #187426 by PCW
Replied by PCW on topic Mesa Terminal Block source
The parts we use are "Welink" brand as they are side stackable
and quite reliable.

example part numbers

F73-B-3.5.08P (8 pin side entry 3.5 mm pitch plug)

F83-5-3.5-02P ( 2 pin 3.5 mm pitch vertical header)
The following user(s) said Thank You: BeagleBrainz, pinder

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