Open barrel crimp PCB pin terminals for wire-to-board connections

Hello,
I notice some audio equipment has the PCB crimp pins shown in the photo, but I can't seem to find them anywhere.

Does anybody know where to source them?

Or alternatively, does anybody have a better solution to terminate wires directly to a PCB?

Thanks
 

Attachments

  • IMG_2377a.JPG
    IMG_2377a.JPG
    47.7 KB · Views: 384
There are lots of board to wire termination styles. I use screw type sometimes, spring occasionally and the .1" pin headers too. Just search digi key or mouser for board to wire connectors. There will be so many your head will spin from the results.
 
A better resolution but not for your board in the picture a they start with 2 pin versions: Phoenix MKDSN and that family. Way better, more service friendly and less risk to peel off PCB tracks by mechanical force.

Soldering wires directly to boards is more or less abandoned practice in recent quality devices. If one persists the good old 1.3 mm PCB silver or tin plated brass connector pin still works OK. It is better than soldering wires directly to the PCB. The 1 pin M3 soldering pin is also decent when some current will flow. Then a M3 round amp connector must be crimped to the wire.
 

Attachments

  • 13mm-pcb-connector-pin.jpg
    13mm-pcb-connector-pin.jpg
    20.3 KB · Views: 88
  • images.jpeg
    images.jpeg
    3.1 KB · Views: 83
Last edited:
Thanks for all the tips guys. I probably should have mentioned this, but due to space constraints there isn't enough room to fit 'normal size' connectors on the PCB. So it has to be simple holes and wire termination. I was looking for a way to make this more reliable and those crimp pins seemed to be a reasonable solution. There's a plug and socket at the other end.
 
If you have to use large wires, these are definitely the way to go. We've used them for many years.
The snap-in types are extremely secure and strong, and are available up to 30A. Also made in 90 or 45 degrees.
https://www.keyelco.com/category.cf...cks/Screw-Terminals-Sturdi-Mount/p/476/id/477
I have not seen that style connector before. Is there a specific or target industry those are used and more prevalent in? They remind me of the speaker terminals used on my decades old Lafayette audio amplifier from the mid 60s.
 
They've been widely used for decades, about the only good way to interface a large lugged wire with a pcb.
In power electronics and power supplies we use lots of them. Very reasonable cost also.

You are thinking of something like this, which is quite different.
 

Attachments

  • phenolic.jpg
    phenolic.jpg
    29.4 KB · Views: 134
Last edited:
Hello,
I notice some audio equipment has the PCB crimp pins shown in the photo, but I can't seem to find them anywhere.

Does anybody know where to source them?

Or alternatively, does anybody have a better solution to terminate wires directly to a PCB?

Thanks

OK, I've figured this out now. They are called AMP-IN PCB terminals. JST also have a version called JST SIN connectors. The only problem is, there are no hand crimp tools available for them - machine only. Darn.
 
The crimp is for better grip and stress relief.
No other use is apparent.

You want to make permanent connections, put a stress relief inside the chassis, so a pulled wire is not damaged.

For quick connections, or removable wires, just look at companies like Phoenix Contact, the variety will indeed make your head spin, and maybe give you some ideas.

You can also make a sort of harness, soldered cables from PCB to one side, and removable cables to the other side of the kind of plug + socket devices common in cars and such.