Hi,

Does anyone know where I can buy the tiny 1-pin connectors used for coach lighting? And the microscopic heatshrink sleeves?

Thanks

Someone once suggested to recycle ESU connectors (meant for decoders). E.g., ESU article 51950, an 8-pole female jack, could be sliced into 8 individual single pole female jacks. For the male counterpart, one needed to cut an 8-pole male jack from a decoder set. I didn´t have the heart to do that, but one day I might. My local MRR dealer has heatshrink sleeves in his portfolio. So, maybe this is also the case in your country?

I would be tempted to use somehting like these JST 2mm spacing connectors normally used to connect leads to circuit boards (circuit board connector linked), but the mating half tend to have crimped pins and require assembly into the connector after being crimped onto the wire.

The other option, especially for single pins is to use individual pins from the ubiquitous D-Sub connectors. These can be purchased as individual pins with either crimp or solder bucket connections. The crimp version can be soldered to. Once sorted then use some 1/16" heat shrink over the pin leaving just the mating surface of the pin exposed, and on the socket half bring the heat shrink right up to the end. There a whole range of sizes smaller than 1/16" (1.6mm) at Farnell/Onecall/element14 (whatever name they are currently using in your area). I have linked to the selection page here in the UK, but you should be able to find similar at your favourite electronic parts store.

Where more than one pin is required you can use different colours to identify them, or with just two pins have a pin and socket on each side.

2.54mm is the spacing from pin to pin in a row, not the size of the pin. Its a standard pin diameter (I forget the thickness)

Looking up the standards, the pitch is based on 1/1000ths of an inch, and the pin thickness is standardized:

Pin Spacing Post Size
.100" (2.54mm) .025"² (0.64mm²)

So if the post is 0.64mm^2, that would be a diameter of 0.9mm


(see https://gct.co/board-to-...tch-and-header-post-size )

Then get a 0.039" (1mm) header, and appropriately smaller heatshrink

https://www.digikey.com/...0-ST-BK/S9262-ND/2039566

Hi,

I bought some micro mini in line connectors from ledbaron who sells on the German ebay. Just look for the RM 1.0 connectors.
I used them to connect the lighting in the old metal coaches , using just one pick-up for the consist.
I found them really great, and it easy easy to connect/disconnect . They are actually 2 pin connectors but I just paralleled the conductors up.

cheers
Bob.

The Sol-Expert group sells a very small 2 poles cable set:
sol expert cable set 2 poles

and very small connectors:
Connector 2 poles

connector 3 poles

Also to get at the CONRAD shop in many EU countries.