Sorry dudes…. edited the pics and then fell asleep. I was just teasing Tex 
Yes, correct it’s E21A! Congrats Zak :student:
I’d love to see some more about the E21A. I wonder how they would fare on djozz’s custom copper boards for LEDs such as these (moderate power but no thermal pad).
Finally an official Nichia 219 "HI".
Reflowing this one is PITA. Without precise SMD, you have to use a jig/centering tool. Not auto centering effect to be expected. even the excess solder flux will ruin it.
Cheers,
Clemence
Interesting LED for ultra low current applications.
Yes, not so interesting stuff for you guys. Will requires specially made PCB. The anode - cathode separation is only 0,2mm! Just a LITTLE too much solder and they will bridged. Keeping 2 or more emitters perfectly parallel and flat is another challenge. I didn’t use tweezer as it’s only 0,2mm thick, and the coating is very fragile. The soft silicone protection coating has phosphors mixed in it (warmer CCT/higher CRI has thicker coatings). I just dragged it here and there using fine feeler gauge blade.
Imagine (manually) creating a light panel consists of 100’s of these… :confounded: :disappointed:
and then imagine Emitters somewhere in between having to be replaced
Mine just arrived! Thanks again to clemens, chouster and TA, who made this possible!
Not to mess up with all those tiny LEDs when repacking must be a real challenge! Really hard to imagine how much effort went into this!
Ladies and Gentlemen…. the awards goes to Chouster and Texas_Ace….
I only did two big bulk packings 
Guys, please let me know about the colour of 219C 9050 sm503. Mustsimon said it’s pretty green (even though he compared it to some of his 219B’s collection). I don’t have any yellow/green or even yelloish/greenish problem with them all.
Those sm503 9050 219C and sm573 9050 144A are by far the most neutral white I have.
The more current, the (slightly) rosier 9050 219C becomes
- Clemence
Anyway, clemens, you were the one who initiated the whole thing!
I only tested one 219C sm503 with my DMM so far and did not notice any green. But I should test it properly to really state the tint.
Now I need boards, many boards… Any quick suggestion where I can buy SinkPad or Noctigon for a reasonable price (shipped internationally)? Thanks!
Try Vestureofblood or Hank. They’re both member of BLF and CPF
Those “mini COBs” look interesting.
Those E21A are very interesting. Imagine a 20mm triple under Carclo optics. Unfortunately this would need a special MCPCB. For good heat transfer a special AlN Board would be nice, or a direct cathode MCPCB combined with a special driver that switches battery+, so that the board wouldn’t have to be isolated.
3x E21A and Carclo 10511 should make a very nice beam, smooth but with some throw.
That beeing said, I would expect the NCSL219B-V1 R9080 to be quite similar concerning beam characteristics under those 105xx Carclos, but much easier to implement.
I just built up a Convoy S2 using one of the sm503 9050 219C. Looks pretty nice to my eyes, but it’s hard for me to tell as I’m red/green colorblind. I wouldn’t mess with high CRI for myself, this is for a friend who will enjoy the CRI. It does appear to be a wonderfully neutral white though.
Thx for the AlN idea Chouster, will think about it.
Carclo 10511 designed favourably towards Cree XP-G in the first place (0,73mm focal plane). The rest of the emitters will need some adjustment in optics’s peg height. E21A paired with 10511 isn’t as tight as it potentially could. The problem lies in much lower focal plane in E21A 0,27 - 0,3mm +/- 0,05mm (height vary with different CRI). Compare this to 0,4mm in NVSx219C/NCSx219B-V1/NVSx219B-V1.
We all know that domeless emitter with the same die shape should have much tighter beam. But from this beamshots, the difference is only marginal. Approx. 1 degree tighter compared to 219C (the same die as E21A).
Cree XP-L HI usually have ~20% tighter beam compared to XP-L HD in any TIR optics.
NVSW219B
NVSWE21A
NVSW219C
Just my Rp 2
Just for fun....
Hi Clemence,
I appreciate your Rp 2 very much. 
I read your thoughts about AlN in your VirEnce CDTP MCPCB thread, so you already mentioned it.
The beamshots and FWHM-graphs you posted are from Carclo, right?
I think their numbers are very much like I would have expected, with one big exception…
… the NVSL219B. I really think they mixed something up there. In fact, I have the feeling they tested a NCSL219B…
All numbers would make perfect sense to me than.
EDIT: I just wrote them an e-mail asking for clarification.
Yes, I got them pics from Carclo’s website.
I don’t think they mixed it with NCSL, it’s what it is.
Beam angle order in 10511: 219B - E17A - E21A - 219C - 319A (weird huh?)
If we follow common sense based on die area geometries it supposed to be like this: E17A - E21A - 219B - 219C - 319A
So far, the only explanation logcal to me is in their focal plane (die height) differences. Anything lower than ~ 0,6mm - 0,73mm (XPG) will off focus. 219B, 219C, and 319A are all have 0,4mm focal plane. That’s why their sequence looks OK.
Hi,
please take a look at the Cd/lm numbers of the 10193 optic.
- NVSW 319A Cd/lm: 9.5
- NVSW 219C Cd/lm: 12.5
- NVSW E21A Cd/lm: 20.66
- NVSL 219B Cd/lm: 23.1 (NCSL219B!?)
- NCSW E17A Cd/lm: 34
I really do think they mixed that up.
I don’t know. But that looks OK to me since 219B has smaller die than 219C. E21A and E17A could be close to 30 and 40 cd/lm if the height adjusted.
Also, why would the NVSL219B have so much higher Cd/lm values than the NVSL219C, when they have about the same die-height and die-size?