Looking for item number for 2mm ceramic LEDs in yellow/amber color.

Well, you just have to search the Internet, those have been discontinued by the manufacturer Lumex for some time now.  You can occasionally find them at surplus component places, I searched a lot of obscure sites to find the ones I have.  I don't know where the manufacturers like Lionel and MTH were getting them, but I have to wonder if they did a last-time buy and will run out at some point.

They’re your trains, and you can do what you want, ....but there’s no amber “marker” lights used on real railroads, ....and “ markers” mark the train’s location...ie; the end of the train ( illuminated red) class lights were used to tell what the train’s job was that moment....green, or white ( actually clear) ....lights on, or lights off also dictated what the job was for that given job it was doing.....again, they’re yours, do as you please, just wanted to let you know,....there’s no amber “markers” ...

Pat

@harmonyards posted:

but there’s no amber “marker” lights used on real railroads,

Kill-joy!

@gunrunnerjohn posted:

Kill-joy!

Sometimes the truth has to hurt a little....🤣🤣🤣....he can make them purple for all I care..I’m pretty sure that’s correct info, and hopefully Jack (HW)  doesn’t have to correct me!...🤔

Pat

@harmonyards posted:

just wanted to let you know,....there’s no amber “markers” ...

Pat

I was lazy and didn't want to get technical haha

You might want to try Mouser Electronics

Mouser Electronics
www.mouser.com
1-800-346-6873

Mouser has none of the Lumex 2mm ceramic LED's.

This seems to be a redux of this OGR thread from last year.  As time goes by the ceramic stem 2mm LEDs will only get harder to find! 

As I see it, the discussion needs to pivot to alternatives - DIY or purchased.  There have been a lot of suggestions but has anyone successfully replaced the 2mm ceramic style?  How? Extra credit for photos. 

Stan, I've been looking for true 2mm thru-hole LED's, but so far have come up dry.  I'd also like to find those really tiny red LED's that really old brass used to use, they're also 2mm in diameter and no fat back.   I've looked far and wide, but so far no luck with anything truly 2mm except for composite stuff fabricated from surface mount LED's, not the same thing.

@gunrunnerjohn posted:

...but so far no luck with anything truly 2mm except for composite stuff fabricated from surface mount LED's, not the same thing.

But if it walks like a duck, talks like a duck, etc...

No doubt each application is slightly different, but what's wrong with the "composite stuff"?  I may not be understanding what you mean, but seems you can get a pre-wired smt LED, shove it down a 2mm hollow rod, and glue on an amber round-top lens.  Yeah, requires good eyes, craftsmanship, spare time, etc. but then again if there's no readily available alternative? 

Stan, you answered your own question!  It's time and money.  Also, the pre-wired SMT LED doesn't shine out like the molded LED's, it shines to one side.  Sometimes that works, and sometimes it doesn't. You also have to find the proper 2mm hollow rod and a lens that does the job.  Of course, unless the LED shines up to the lens, the lens isn't doing much...

I'm not ready to give up the fight to find a suitable replacement that I don't have to build.  I also scored a bunch of the ceramic LED's before the stream ran totally dry.  I'll deal with the replacement when I run out of them.

It will be ineteresting to see how Lionel and 3rd Rail deal with this. Virtually all the train manufacturers have been using the ceramic LED in their markers since the '90s.

Pete

Correct Pete, and I ordered a few harnesses with the green LED's as I had fewer of those, and they were in stock.  As I speculated, it's possible they did a last-time buy of a large quantity.  Of course, since I suspect the Chinese buy the components, that may not be an option, I'm sure their factories don't want years worth of parts laying around!

Well here's a seller on Amazon who apparently understands time=money.  >$4 a piece.   The picture is wrong...but the part # is correct for the genuine Lumex ceramic stem 2mm.  Might be worth an inquiry to confirm what is being sold...

And yellow per OP:

Well, at over $4/ea, I'll keep looking!