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goody75 3rd April 2012 07:57 PM

Terminal Block Source for Blank PCB
One of the allures of going the DIY route to many is having the control over the partaking that GI into your equipment. I get that. And although I'm a newbie, I find it interesting sometimes to look at the datasheets of components that I am considering - even if I don't understand most of what's on them.

BUT... I am trying to finish my mouser order for a gainclone kit (blank PCB) and I'm at the point where I want to slit my wrists because finding the terminal blocks has been EXCRUCIATING!!!

I need two 2pin blocks with 5mm pitch, a two 2 pin blocks with 8.5mm pitch, a 3pin block with 8.5mm pitch, and a 3 pin header with 2.54mm pitch. Can anyone help with a source? Preferably in north America. Part numbers would be great. This is something i would like to be done with.

macboy 3rd April 2012 08:13 PM

Try here at digi-key
select pitch and number of positions, click 'in stock' (you will not be special ordering thousands of them!) and search.
I hope you meant 7.5 mm not 8.5 mm. Of the over 10000 at digi-key, none are 8.5 mm pitch. If you really do need 8.5 mm, then well, talk to the eclectic individual who designed that PCB.

goody75 4th April 2012 03:21 AM

That is precisely the problem. There are a combined zero 8.5mm pitch terminal blocks in all of Digikey, Mouser and Ebay!!! I double checked the BOM and it does say 8.5m pitch.

I just sent an email to the guy I bought the PCB from. FWIW, it's the Jim's Audio gainclone board from this thread. I guess I should probably post a question there too.

Thanks for your help.

gootee 4th April 2012 03:38 AM

You could try Allied, or Newark. Mouser would have been my first choice. Then Digikey. Then Allied.

Did you try the live chat with their support people?

Maybe the BOM is wrong. 8.5mm sounds wacky. Maybe it was supposed to be 2.5 or 3.5.

marce 4th April 2012 01:38 PM

They do them, found somein China, cant find any fromusual sources easily!
Barrier Terminal Block Pitch 8.5mm (HB8500) - China Terminal Blocks,Barrier Terminal Block,Connection Terminal in Manufacturing Equipment for Electrical & Electronic Product

macboy 4th April 2012 03:43 PM

The only way to know if 8.5 mm is the real pitch is the measure the hole spacing on the PCB.

goody75 4th April 2012 11:40 PM

The guy from Jim's Audio sent me back an email saying that they are really 7.5 not 8.5mm. But I am going to measure it myself just to be sure.

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