miniature 3 pin sockets

I am a bit new to all this electronic ey stuff. I need to plug 5 off, 3 wire temperature sensors into a circuit board. Won't do it too often, but must be easily unplugged. Sensors draw little current at 3.3 volts.

I don't want them too big, perhaps 3.5 phono ?? Or what would you suggest ? Elsewhere to get them with a reasonable delivery schedule (Not China).

BobH

Stereo jack plugs are reliable.

3-pin mini DIN plugs are bigger but look more professional.

If as you say these are plugging into a circuit board then is the board is already fitted with a connector?

If its is then

If say the board will have wires soldered to it that are then wired to connectors of your choice its just a matter of selecting parts that meet the electrical requirements, that can be panel? mounted, are wire-able with your skills and equipment, affordable and suit the type of wire fitted to the sensor. 3.5mm phono plugs are only two pole so no good for three wires sensors, 3.5mm stereo jacks would be OK but as one pole will be carrying supply volts you need to take care to wire them in such a manner that the sensor is not damaged whilst mating (the wrong contacts make connection as the plug is inserted).

There are hundreds of suitable connectors really, mostly its a matter of choosing the physical and mechnical features first.

Ian P

Have a look at XLR connectors RS components or other supliers.

David

I recently bought 'Metal Screw Butt Joint Type Male Connector Aviation Plug XS8JK-4P/Y' from Amazon , £3.62 for a plug and socket. These sockets can also be bought 'panel mounting' rather than lead fitted. They have a nice snap on connection action so stay putt in use but disconnect easily when you need to unplug.

Also consider the servo plugs and sockets used by modelmakers for radio control, but these would need to be used with fly leads rather than panel mounted socket so wont look quite as professional. Get some lengths of small bore heat shrink tube to seal over soldered connections between flyleads and your wires if going that way.

There isn't enough information in the OP to be able to make an informed suggestion. For instance are the connectors wire to PCB, or do the connector(s) need to be panel mount? Is each sensor to have it's own connection or can they all be on one connector. Do the connector(s) need to be latching or not?

Having spent many hours searching for connectors I can safely say that connectors is the biggest section in the catalogue; and still no-one makes the connector that you really want.

Andrew

It sounds like Mini Din connectors would be a good choice if they are small enough for your application. Available from 3 pins upwards and with chassis or pcb mounting sockets. I buy connectors from CPC. They are local to me but do quick free delivery. **LINK**

why not just headers and female header jumpers

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jumpers

you need a solder join in the wires, bit of heatshrink over it is fine. Arrange to have your 3 pins next to each other on 0.1" spacing, the the set of three get a better grip if they are adjacent. Really cheap

Basically, you need Molex connectors. If a panel plug/socket, do not use stereo jacks, as has been said, because the wrong contacts 'make' as they are connected. Microphone connectors, available in many 'ways' can be used, but not if there is danger of harmful, inappropriate connectors being mated, causing hazards.

If you want to connect straight onto a board but want something keyed, JST connectors are useful from Amazon (and plenty of other places).

Brian

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I have 'here we go again' feeling!

A few days ago I brought up the subject of topics rambling on with irrelevant replies to the original question, I was and still am not, opposed to topic drift and admit that I do both partake and learn from some threads. In this particular thread the OP admitted he was not electronically knowledgeable but asked for some connector suggestions. Since there are thousands different connectors, without the OP supplying more information it is really quite pointless forum members suggesting particular devices ad infinitum.

Its not difficult to look at the beginning of a thread before posting a reply, I'm just baffled why a lot of people do not seem to bother.

An exaggeration really, but for all we know the OPs application might be part of diagnostic medical equipment and have an unlimited budget, or it might be a non critical hobby related project. Offering any specific connector without knowing its intended purpose does not really have any point.

Ian P

Which is why I didn't suggest one.

Andrew

I know you didn't Andrew.

Ian P

The OP's earlier question about adding three temperature probes to an Austin Seven led me to believe that this thread about attaching three temperature probes to a circuit board might be for the same purpose, hence my belief that JST connectors would be appropriate. I stand admonished.

Brian

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OK Guys and ladies, I have the information now - Thanks for all your help.

BobH - Speedy Builder 5

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