Die size in mm² would be nice.
1.5*1.5 LED
0.6*0.75 die
luminous flux 120/110 @350mA
3.3V
5000 and 5700K
Nice project!
At least the XP-G die size is not correct yet, it is very close to 1.5 x 1.5 mm.
When I have time I will measure some leds for the table
Measured DIE-sizes of many well known LEDs can be found here (it's in German) and in other threads/posts of sma (he is also a member here on BLF). He even subtracts the area of the DIE where the Bond-Wires are.
Here are some interesting ones (all without dome):
Cree XR-E EZ1000: 0.92mm^2
Cree XR-E EZ900: 0.73mm^2
Cree XP-C: 0.44mm^2
Cree XML: 3.9mm^2
Cree XM-L2: 3.94mm^2
Cree MT-G2: 15.7mm^2
Cree XP-E2: 0.85mm^2
Cree XP-G2 (old 1st version 2012-2015): 1.66mm^2
Cree XP-G2 (2nd version, 2015, the ones that luminarium iculator likes so much): 2.18mm^2
Cree XP-L: 4.13mm^2
Cree XP-L HI: 3.67mm^2
Cree XHP-35 HI: 5.9mm^2
Nichia 219B: 2.2mm^2
Also some are easy to find elsewhere.
Luminus SST-50: 2.25mm x 2.25mm = 5mm^2
Luminus SST-90 & SBT-90: 3mm x3mm = 9mm^2
Luminus SBT-70: circular, 7mm^2
Luminus CBT-140: circular, 14mm^2
Some guesses from me:
Cree XHP-70: 4 x XP-L
Luminus CSM-360: 4 x 3mm x 3mm = 36mm^2 (largest power led array?)
Didnt know that sst-90 is such that big
I always thought it’s same size of mt-g2
The SST-90 ist much smaller than the MT-G2…
So XP-L HI and HD have different dies?
Seems to contradict exactly the same voltage characteristic…
Always looking for better information…
Here are some of the SST-40 properties I could find. Still looking for die size though
Package Size: 4,95 x 4,95 mm
Diagonal Max: 7,00 mm
Total Height: 2,86 mm
Dome Diameter: 2,26 mm
Die size: ???
Source: http://www.luminus.com/products/Luminus_SST40W_Datasheet.pdf
The SST-40 datasheet above actually specifies die size. It’s called “LED Emission Area” and it’s 4.0 mm.
4mm squared.
The die size is 2mm x 2mm.
CRX, could you add SST-40 to the first post?
Yeah I’ve been meaning to update this.
Using a picture from djozz:
Coupled with WebPlotDigitizer I calculate LH351D die size to be 2.166*2.166 mm or 4.69 mm².
ADDED:
Also, XHP35 HI was measured to be 5.32 mm² actually:
ADDED:
And Luxeon V is 6.43 mm²:
Thanks mate.
CRX, I was noticing some odd things concerning the xhp70, 70.2, 50 and 50.2 Die.mm2. or die area.
For instance, the 70.2 is just 4 x xml2 (I think) so the total surface area would be like in your old chart 15.68 mm^2. Why does you new chart show a much larger area of 31.52 mm^2?
I keep meaning to come back to this to update it, I think I copied those numbers are from koef in this post. LES not die size probably.
“The total light emitting surface (LES) area of the XHP70.2 is 31.52 mm² (0.0489 sq in) in size. The four single dies are 7.88 mm² (0.0122 sq in) each.”
Those numbers are probably with and without dome (half).
The xpl Hi, HD and xhp35 Hi, HD don’t show a huge difference.
The difference is basically the same for 99% of all standard LEDs. The dome doubles the apparent die size.