PCB Header/Connector Advice?

weinstro · 06:27 AM

Hi,

I'm building a PCB, roughly based on a Leach. However, I'd like to have the input and VAS sections on one PCB, and the predriver, driver, and OPS on another board.

The idea is to use mating pcb mounted headers to connect the boards and provide mechanical mounting. Any suggestions on pcb mounted header/connectors to use?

tomchr · 30th November 2009, 06:35 AM

Any of the 100-mil grid type connectors would probably work. If you're working with higher voltages or are worried about capacitance between adjacent pins, you can always skip every other row.

Another solution would be to align the holes in the VAS PCB with those in the output PCB and just run a standard Molex connector with some wire between the two. That way you can adjust the height between the boards by choosing different standoffs. It might give you more flexibility.

I'd run the high-current supply runs directly to the output/driver board and have a separate run for the VAS PCB. This would limit the connections between the VAS and output boards to just a couple.

~Tom

peranders · 30th November 2009, 07:38 AM

My advise is that you have one single pcb.

weinstro · 30th November 2009, 12:04 PM

Quote:

Originally Posted by peranders

My advise is that you have one single pcb.

I hear you. But then I was planning on trying different input, VAS, and feedback circuits, which could simply be plugged in. A key feature would be keeping the connections short.

peranders · 30th November 2009, 12:55 PM

A pin header is good.

jackinnj · 30th November 2009, 02:18 PM

You can get the gold plated Molex 0.100" headers from Digikey. They can also make up ribbon connectors with any combo of male, female and solder tail connectors. It isn't difficult to make the female connectors -- and I use CAT5 cable or microphone cable.

Good for prototyping -- but the best connector is no connector.

weinstro · 30th November 2009, 04:58 PM

Quote:

Originally Posted by jackinnj

You can get the gold plated Molex 0.100" headers from Digikey. They can also make up ribbon connectors with any combo of male, female and solder tail connectors. It isn't difficult to make the female connectors -- and I use CAT5 cable or microphone cable.

I'll give the Molex a look, but want to avoid something that requires a cable.

Quote:

Originally Posted by peranders

A pin header is good.

Thanks for posting the pictures.

I was looking at a Harting #09062152821. Looks nice, but each end is $9 or more. The pin header sounds more appropriate.

30th November 2009, 06:22 AM	#1
weinstro diyAudio Member Join Date: May 2003 Location: California	PCB Header/Connector Advice? Hi, I'm building a PCB, roughly based on a Leach. However, I'd like to have the input and VAS sections on one PCB, and the predriver, driver, and OPS on another board. The idea is to use mating pcb mounted headers to connect the boards and provide mechanical mounting. Any suggestions on pcb mounted header/connectors to use? Last edited by weinstro; 30th November 2009 at 06:27 AM. Reason: Spelling

30th November 2009, 07:38 AM	#3
peranders Electrons are yellow and more is better! diyAudio Member Join Date: Apr 2002 Location: Göteborg, Sweden Blog Entries: 4	My advise is that you have one single pcb. __________________ /Per-Anders (my first name) or P-A as my friends call me

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30th November 2009, 06:35 AM	#2
tomchr diyAudio Member Join Date: Feb 2009 Location: Greater Seattle Area	Any of the 100-mil grid type connectors would probably work. If you're working with higher voltages or are worried about capacitance between adjacent pins, you can always skip every other row. Another solution would be to align the holes in the VAS PCB with those in the output PCB and just run a standard Molex connector with some wire between the two. That way you can adjust the height between the boards by choosing different standoffs. It might give you more flexibility. I'd run the high-current supply runs directly to the output/driver board and have a separate run for the VAS PCB. This would limit the connections between the VAS and output boards to just a couple. ~Tom

30th November 2009, 02:18 PM	#6
jackinnj diyAudio Member Join Date: Apr 2002 Location: Llanddewi Brefi, NJ	You can get the gold plated Molex 0.100" headers from Digikey. They can also make up ribbon connectors with any combo of male, female and solder tail connectors. It isn't difficult to make the female connectors -- and I use CAT5 cable or microphone cable. Good for prototyping -- but the best connector is no connector.

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