Single-pin disconnects?

[SoaDMTGguy]

I was looking at some old hardware that had single-pin quick-disconnect fittings. I was looking on Mouser and McMaster-Carr, but I couldn't find anything other than the two-pin spades. What are these called? Are they still made, or have they fallen out of fashion?

 

[Enzo]

SOme kind of photo? What I call quick connects are spades and come single. Duals are less common. For one wire in a harness I see single pin molex connectors, those are still around.

 

[indianajo]

There used to be "tip jacks" on meters & such for the test leads. These were diameter of the standard test probe tip. With advance of lawsuits for users that got shocked by 480 vac etc, these connections disappeared from the meter end of the test lead. The supply of jacks dried up in electronic supplies, too. Tip plugs & jacks were safe at 20-50 v, but not on the 1000 v scales that used to come on $6 Radio Shack meters etc.

 

[JMFahey]

You mean these?

or any of these?

INTERNATIONAL ALUEL

They are all "single pin"

 

[SoaDMTGguy]

The second link is pretty close. I’m looking for something with a male pin that can solder into a single hole in a PCB and then a female pin that can go onto it.

 

[JMFahey]

Proper ones have 2 legs for stability, such as these:
"2.8/4.8/6.3mm Uninsulated Male Spade Terminal Crimp PCB Connector 0.8mm Thick"2.8/4.8/6.3mm Uninsulated Male Spade Terminal Crimp PCB Connector 0.8mm Thick

matching female crimp connectors:

If strictly single "leg" only:

"JST, SMF Male Crimp Connector Housing, 1 Way, 1 Row Right Angle"
1P-SMF | JST, SMF Male Crimp Connector Housing, 1 Way, 1 Row Right Angle | RS Components

If for a prototype, get a .156" pitch connector and hand cut single male pins for the PCB, split female housing boxes with a sharp X-Acto knife, avoid losing fingers doing it.

Cut single males from this strip:

separate this
"24 Pin .156 Molex KK Series Connector Housing" into 12 individual ones

DIY baby!!!! 🙂 🙂 🙂

 

[SoaDMTGguy]

I'm looking for something like the connectors in this picture. I have boards with a single hole for a wire, so I couldn't install a two-leg connector, but I still want the ability to disconnect without desoldering.

The multi-pin strips are a good idea. I'll go that route if I can't find anything better.

 

[mjf]

these ancient connectors are still available.
in germany: lötnägel and lötösen .
in english: pcb terminal pins ?
1mm and 1,3mm diameter...........

Security Check

 

[ktham]

single pin connectors

I use single pin molex terminals for a quick disconnect function for DC power for my boards.
Made by Molex, Mouser part 538-150180-1016 for male terminals and 538-150181-1016 for the female terminal.

 

[JMFahey]

Those were popular in the 80´s, then fell out of favour, because either multiple cables were used or, at "high power" connections such as power transformer to power supply PCB they went to 2 leg flat pins which are stronger.

I have seen single pin .156" square post connectors, male and female, but nowhere to actually BUY them, that´s why I suggested chopping multi pin connectors into individual ones.

The top one in your picture

is probably:
Pinball Life: Molex .093" Female Connector Pins 18-22awg

but looks like a kludge to me, it is not even insulated.
It should at lest be heatshrinked, but much better inside its own rigid housing:

 

[SoaDMTGguy]

Hey! Good find! Odd source heh.

My use case would be for things like the First Watt BA-3 front-end board: https://cdn.shopify.com/s/files/1/1006/5046/products/BA-3_1024x1024.jpg?v=1455100906

It would be nice to be able to disconnect V+/V-, D, etc, none of which support a two-pin post.

 

[PRR]

I'm looking for something like the connectors in this picture......

Those are taken from miniature (7 and 9 pin) tube sockets.

They are a perfect fit on a TO3 device's pins (because early transistor bits came from the same bins as tube bits).

I would not use THAT system today. There are many options in wirewrap size, as JM shows.

 

[rdb64]

Hi @SoaDMTGguy. Did you find a good solution? I'm looking at the exact same problem.

 

[thirdicomplex]

Single pin fastons are not that hard to find. Plenty in stock at Mouser https://www.mouser.com/ProductDetail/TE-Connectivity-AMP/735427-2?qs=sd1rtLGwt44StIDOi/nlAw==

 

[SoaDMTGguy]

I did not find a solution.

 

[rdb64]

Thank you, @thirdicomplex. I see the FASTON 110 series includes tabs with a single solder pin. I'm going to try that out.

 

[rdb64]

Here's another solution I found that I'm using and like.
https://www.mouser.com/ProductDetail/Mill-Max/4639-0-00-80-00-00-08-0?qs=5aG0NVq1C4yoJW4ONEk1Wg==
https://www.mouser.com/ProductDetail/Molex/150178-1010?qs=OAhjpuo3Vu6n4iQOOQmjHg==
https://www.mouser.com/ProductDetail/Molex/150181-1016?qs=OAhjpuo3Vu730aRyQweZFg==