Author Topic: Large Current PCB connector?  (Read 686 times)

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Offline Yizhou

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Large Current PCB connector?
« on: October 10, 2019, 11:36:11 am »
i have bought a  high voltage DC-DC brick (AIF120F300) to generate 120A current.
there are 4 copper pin to share current,  and i have no idea to connect them with PCB.
is there anyone can give me some suggestion?
 

Online coppice

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Re: Large Current PCB connector?
« Reply #1 on: October 10, 2019, 11:55:38 am »
That module has a long and detailed data sheet, yet it says almost nothing about mounting the module. Module data sheets usually have detailed information about things like their tolerance to soldering conditions, as that is pretty important for a module that's soldered together inside.
 
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Offline Yizhou

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Re: Large Current PCB connector?
« Reply #2 on: October 10, 2019, 12:21:08 pm »
you are pretty right.

there is nothing about mouting the module in the datasheet. what interest me is the interval between two output pins, which is 5.08mm. It is just like a standard size.

i need connect it to a thick wire, and fixed to a PCB board or a big hot sinker.
 

Offline SMTech

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Re: Large Current PCB connector?
« Reply #3 on: October 10, 2019, 12:30:07 pm »
Well, its a beast isn't it. As a board mounted module you wouldn't really be looking at a connector, just soldering it directly to the board and sometimes you get advice on maximum per sin soldering times on such things, but not always and its not like manufactures are averse to hiding such things in a master document nobody knows how to find. Of course you'll need to do your sums for all your tracks & vias to handle that much power, if it suits you better, make a carrier board that breaks out the power pins to some screw terminals instead.
 
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Offline Yizhou

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Re: Large Current PCB connector?
« Reply #4 on: October 10, 2019, 12:32:21 pm »
i found a 800A current module on youtube.



there are a paire of connector linked to PCB,but i dont konw how the connector  stick to PCB. do i need to customize a special connector? if so, it is diffcult for me. :palm:
 

Online Gribo

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Re: Large Current PCB connector?
« Reply #5 on: October 11, 2019, 10:40:12 am »
Screws, big screws.
I am available for freelance work.
 
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Online Ian.M

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Re: Large Current PCB connector?
« Reply #6 on: October 11, 2019, 11:49:27 am »
... and Belleville washers so the PCB substrate cold flowing doesn't reduce the screw's clamping pressure over time, causing it to loosen and burn up a few months or years later!  ;)
 
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Offline IconicPCB

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Re: Large Current PCB connector?
« Reply #7 on: October 11, 2019, 07:07:37 pm »
I had to bring 200 amps onto a PCB.

Part of electric traction set up.

Used brass inserts soldered into 4 ounce copper board

The inserts were drilled and tapped so that cables could be attached.

No damage to the board, Power Fets floated on pools of solder.
 
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