2 pin unpolarised connector

Why goes an ancient rock band need an unpolarized connector?

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John Larkin         Highland Technology, Inc 

lunatic fringe electronics

Maybe he's adding connectivity to his horse-drawn seed drill?

Cheers

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Clive

What's a polarized connector? Is a BNC polarized? How about some little molex thing... there are thousands of connectors.

George H.

I'd guess something like a diode in a connector which you can plug in two different ways (or not at all) to select some parameter.

Cheers

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Clive

Pseudorandom number generator for the seed drill lock. Let people that know nothing about polarity use it & you get your RNs.

NT

There are thousands of connectors that fit your needs. What other requirements? Voltage, current, speed, cost? I think there are even Berg strips that are less than 5m high, though they may be taller with a connector on them.

One that can't be plugged backwards.

Yes. The contacts can't be reversed.

Well, yeah, there's the 0.1" spacing header connectors. More to the point, you can buy pin and socket elements, and (with a small amount of tooling) make a connector housing for 'em.

Twinax used to come in a two-prong unpolarized version, and it was TERRIBLE for those of us who wanted a shielded pair and DID care about polarity.

What I'd like to see, is a two-pin reversible plug/socket where the plug and socket were identical (all plugs mate with all other plugs). That'd be the multimeter probe connector for me!

Instead, I end up with a drawer full of multimeter-compatible special purpose wired harnesses for various uses.

Those 2 pin cable moulded connectors used to reverse the polarity of barrel connectors to wall-warts come to mind.

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Regards, 

Adrian Jansen

They make those. One pin is male and the other female, so any connector will mate with the other connectors. But it is not unpolarized. The plugs will only go together one way.

They use the connectors on multimeters that they do because of high voltages which may be present. The pin is recessed to prevent contact if it is not plugged in all the way or not at all.

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Rick C 

Viewed the eclipse at Wintercrest Farms, 
on the centerline of totality since 1998

There are also hermaphrodite contacts, which have no male/female variants; GR used to make two coax versions, 50 ohm and (?)125 ohm. The key is, the connector takes a 90 degree rotation to mate with its other half. There's four-circle-quadrants and blade-with-X-slot geometries that work.

GR made 'em coaxial (so center/outer was polarized); I was thinking of two side-by-side contacts, where reversing the direction (180 degrees) to dock would allow both polarities of connection. The geometry is hard to explain, naturally...

not too hard to do, but I can't see a market for them. There would need to be pins partially sticking out on all connector points, restricting its usefulness greatly.

How? You just need a socket either side of each pin, the pin can form the contact on one side of that socket.

NT

Closest I can think of is a 'figure 8' connector, as used for mains inlet on smaller devices. IEC C7 and C8. you can buy re-wireable plugs on ebay, not sure if they're 'official'.

Cheers

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Clive

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** Yeah, but it's a little bigger than the OP's specs.

About 16 x 8 x 35mm.

..... Phil

I strongly believe that mains connectors should be reserved for that purpose.

I have used AMP 926575-1 for differential ECL on individual twisted pairs. Those fit in either polarity on standard 0.1" spacing pin headers.

Jeroen Belleman

well... I don't know. But for sure I need.

then give one example. I haven't given the electrical limits but the dimensions. It gives an idea.

[ ... ] this is good in terms of size, but I don't think I can make easily a robust and handy housing.

You seem to be adding requirements.

--

Rick C 

Viewed the eclipse at Wintercrest Farms, 
on the centerline of totality since 1998