What to do with 24v LEDs with mounts. Have some free.

Post all your model railway electronic problems, solutions and discoverys here.
User avatar
End2end
Posts: 3132
Joined: Sun Jan 12, 2014 9:58 pm
Location: At the end....... and sometimes at the other end

What to do with 24v LEDs with mounts. Have some free.

Postby End2end » Sun Dec 17, 2017 5:49 pm

I have been given a load of I think, 24v LEDs with mounts but I am not sure where they could be used.
Here's some pictures
24vLEDs1.JPG

24vLEDs2.JPG

24vLEDs3.JPG


On the outside housing is says "19040321" I'm not sure but the 2 might be a Z and under that it says"24V CML 435"

A couple were broken so I cut one open to see what was inside.
A resistor on one leg coloured Brown/Red/Red with a gold band
A diode? on the other leg.

I have them in both green and red LED versions and have loads so if anyone wants some for free please do take them off my hands.
PM your request colours, amount and your address.
I'll never use the amount I have been given let alone know what to use then for yet so the best thing I can do is share them. :)
They each come with a rubber/plastic washer, a metal washer and a metal nut and are fixed into the plastic red or green housing.
Thanks
End2end
"St Blazey's" - The progress and predicaments.
Welcome‎
Planning
Building
St. Blazey's Works & Depot thread

User avatar
RAFHAAA96
Posts: 395
Joined: Tue Feb 19, 2008 1:39 pm
Location: Cyprus

Re: What to do with 24v LEDs with mounts. Have some free.

Postby RAFHAAA96 » Sun Dec 17, 2017 8:43 pm

Resistor code stands for 1.2k ohms and the long code is likely a manufacturers build up part code descriptor and the Z probably tells it has a diode for reverse voltage protection.

e.g. https://uk.rs-online.com/web/p/products ... lsrc=aw.ds


The leds themselves are basically standard made up into an assembly that would be panel mounted probably into a truck dashboard or similar.

Rob
RAF Halton Brat - 96th Entry
http://www.halton96th.co.uk

User avatar
TimberSurf
Posts: 1501
Joined: Wed Jan 08, 2014 5:47 pm
Location: N.Wales
Contact:

Re: What to do with 24v LEDs with mounts. Have some free.

Postby TimberSurf » Sun Dec 17, 2017 9:43 pm

They are probably from industry, as they use PLC's with 24v DC to power all inputs and outputs.
http://datasheet.octopart.com/190403Z1- ... 002269.pdf
Be warned, they are designed for connection by female spade crimp connectors (cold) and soldering to them may well open the soldered connections inside. How many have you got? 100 or 5,000? Try 12V on them, they may work, if not, then not much use, unless you feed from on a 24VDC system!
Image
Lumsdonia <--- Hit link to go to my website for full story and wiring advice!

User avatar
End2end
Posts: 3132
Joined: Sun Jan 12, 2014 9:58 pm
Location: At the end....... and sometimes at the other end

Re: What to do with 24v LEDs with mounts. Have some free.

Postby End2end » Sun Dec 17, 2017 10:47 pm

Thanks for the link Timbersurf.
I haven't counted them but I reckon over 100 of each colour.
I'll dig out my 12v psu and try them with that to see if they light.

24v from what I've come to understand is not a usual voltage for model railways so with members enjoying interests outside of railway modelling I thought they could be handy for someone. :)
Thanks
End2end
"St Blazey's" - The progress and predicaments.
Welcome‎
Planning
Building
St. Blazey's Works & Depot thread

Gordon H
Posts: 192
Joined: Tue Mar 14, 2006 1:08 pm
Location: UK
Contact:

Re: What to do with 24v LEDs with mounts. Have some free.

Postby Gordon H » Mon Dec 18, 2017 12:57 pm

The one shown in the picture is from RS, part no. 491-3691
8mm mounting, prominent 5mm indicator.
Note though, that these are classed as ' LED Indicators' rather than just 'LEDs', to distinguish them from bare LEDs which don't have current limiting and reverse protection included.
Given the way they are constructed, they will almost certainly will work on 12V too, at a slightly reduced brightness.

User avatar
RAFHAAA96
Posts: 395
Joined: Tue Feb 19, 2008 1:39 pm
Location: Cyprus

Re: What to do with 24v LEDs with mounts. Have some free.

Postby RAFHAAA96 » Mon Dec 18, 2017 7:07 pm

Gordon H wrote:The one shown in the picture is from RS, part no. 491-3691 .


I already linked to that earlier.
RAF Halton Brat - 96th Entry
http://www.halton96th.co.uk


Return to “Electronics”

Who is online

Users browsing this forum: No registered users and 3 guests