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From: Lasse Langwadt <llc@fonz.dk>
Newsgroups: sci.electronics.design
Subject: Re: high curent PCB connector
Date: Sun, 23 Feb 2025 21:00:21 +0100
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On 2/23/25 20:25, john larkin wrote:
> On Sun, 23 Feb 2025 20:03:46 +0100, Lasse Langwadt <llc@fonz.dk>
> wrote:
> 
>> On 2/23/25 16:45, john larkin wrote:
>>> On Sun, 23 Feb 2025 14:02:30 +0100, Lasse Langwadt <llc@fonz.dk>
>>> wrote:
>>>
>>>> On 2/14/25 17:37, john larkin 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.
>>>>>
>>>>
>>>> https://www.mouser.ca/ProductDetail/Phoenix-Contact/1842979?qs=aYsvlkyO7qM1vWO95kklEQ%3D%3D
>>>
>>> The problem with those connectorfs, and the Weidmuller equivalents, is
>>> that humans aren't strong enough to un-mate them. And the spring-push
>>> wire clamps are flakey. And that they have no no opinions about pin
>>> numbering.
>>>
>>
>> We've used a lot of those plugable connectors, never seemed like a
>> problem to unmate them
> 
> We used a similar part, and it was very hard to un-mate. We use the
> version with the cam now, but only a few of their connectors have the
> un-mate cam.
> 
> https://www.digikey.com/en/products/detail/phoenix-contact/1808912/3439844
> 
>>
>> doesn't have to be spring clamps,
>> https://www.digikey.dk/da/products/detail/phoenix-contact/1803633/260535
>>
>> if there no number you decide what to call the pins
> 
> And since the connectors are unmarked, we have to explain the pin
> numbering to our customers, with pictures in manuals.
> 

if it had numbers you'd still need to explain what goes to what number, 
or just have the names/numbers on the box next to each pin