Correct LED For DAC Audio

ShockChance · Unread post by **ShockChance** » Wed Nov 25, 2020 2:58 pm

I keep ordering the wrong led light for the audio on the io board
Anyone know where I can source in Europe. mouser, rs-online, digi key etc.

My last attempt was this led https://www.mouser.ie/ProductDetail/Lum ... uRagy8aQ==

what should i be looking for. Luminous Intensity?
connected with 200 ohm resistor

Unread post by **Xbytez** » Wed Nov 25, 2020 8:31 pm

See this thread and post here for details on the LED specification:

viewtopic.php?p=3036#p3036

Nat · Unread post by **Nat** » Wed Nov 25, 2020 10:13 pm

ShockChance wrote: ↑Wed Nov 25, 2020 2:58 pm I keep ordering the wrong led light for the audio on the io board
Anyone know where I can source in Europe. mouser, rs-online, digi key etc.

If you send me a message via my website with your address, I am happy to send you a few in the post free of charge.

ShockChance · Unread post by **ShockChance** » Thu Nov 26, 2020 2:55 pm

Thanks for the advice guys. I might take you up on that offer Nat.
For anyone thats in the same boat I found this in the other thread

The TOSLink LED should be from memory 650nM wavelength which looking at your spec sheet is correct however the brightness should be 800mcd

legacypixels · Unread post by **legacypixels** » Thu Nov 26, 2020 8:39 pm

800mcd seems way, way too bright.

The LED listed on the wiki (version 5.5 of the I/O board) is 6.6 mcd @ 20 mA.
The LED I currently use on 6.1 boards is 80 mcd @ 20 mA, and works wonderfully.

Nat · Unread post by **Nat** » Thu Nov 26, 2020 9:02 pm

legacypixels wrote: ↑Thu Nov 26, 2020 8:39 pm 800mcd seems way, way too bright.

You are indeed correct, a typo on my part it should have been 80mcd I have corrected my original post.

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