V-Bin SSC Watch

[chanamasala]

I just wanted to start a thread I can subscribe to for the lookout for V-bin SSC LEDs(118 - 154 lumens.) Word is they ought to be available third quarter this year. If anybody finds any information or any for sale please post here.

Got a link to a Mouser search for SSCs and one to Photon Fanatic:

http://www.mouser.com/search/Refine...27&GetRecs=1&Ns=P_SField&Msb=0&RefType=Header

http://www.cpfmarketplace.com/mp/showthread.php?t=85330

 

[RoGeR]

I don't think that the V bin will come out in 2007.
120 lumens @ 350 mA with the same chip as Cree XR-E?

Now Cree Q5 bins has only 114 lumens. Maybe R2 will come out, that means 122 lumens max.

 

[45/70]

I believe they are already out, in very limited quantities.

Also, SSC's phosphor coating produces higher luminous flux than Cree's, using the same die.

Dave

 

[AlexGT]

ArcMania has a Maxlite III using a VSXOH bin SSC for sale, so they are out in the field right now.

Come on Photonfanatic!!!! when can we get some???

AlexGT

 

[koala]

They are engineering sample.

ArcMania has a Maxlite III using a VSXOH bin SSC for sale, so they are out in the field right now.

Come on Photonfanatic!!!! when can we get some???

AlexGT

 

[tebore]

Can I assume the V-Bin is going to use the dies from the recent Q-bin crees.

If Cree gets more Q5 out that means a W bin Seoul soon isn't out of the question.

My thinking is Cree will only sell to Seoul dies that are the norm coming out of the fab plants. Cree will probably keep the primo dies and call them Q5s and sell it themselves and the ones that just don't make it will be binned Q4 and rest sold to partners. So when the process gets refined to the point where they can ship out the Q5 performing dies to partners, and Seoul combines it with their phosphors we can get some really bright LEDs.

Imagining my HDS with with 170 - 200lumen output

 

[bombelman]

How'bout Z5 bin :lolsign:

 

[chanamasala]

From another thread:

"Just heard from SSC that mass production of V-rank will be next year..."

So, looks like a good long wait. Perhaps another manufacturer will come out with something as good in the meantime.

SeoulSC, if you are reading, please hurry or provide some to CPFers for evaluation.

 

[uk_caver]

My thinking is Cree will only sell to Seoul dies that are the norm coming out of the fab plants. Cree will probably keep the primo dies and call them Q5s and sell it themselves and the ones that just don't make it will be binned Q4 and rest sold to partners. So when the process gets refined to the point where they can ship out the Q5 performing dies to partners, and Seoul combines it with their phosphors we can get some really bright LEDs.

Do they actually bin and separate the dies before adding phosphor and packaging, as well as afterwards?

 

[tebore]

I have no idea. It's just my thinking and based on what I saw when they first released the P4 die SSC finally had the U-Bin.

 

[uk_caver]

It just seems like unless there were pressing reasons to bin before and after packaging (better quality control?), it might be an extra complication, but that is just speculation.

If there were multiple lines producing dies, and some were better than others, then maybe the generally better products might be more easily kept in-house, but presumably there might be efforts made to bring lines up to the higher standard where that's actually practical and economic.

 

[evan9162]

Cree does bin dies before packaging:

http://www.cree.com/products/pdf/CPR3CR.pdf

So a company could specify a certian output of blue LED chips from cree, and package them in a white LED themselves.

 

[uk_caver]

Thanks for that - it's always good to learn something new.

Presumably if there's internal and external demand for higher-spec devices, there's a fair pressure pushing them towards satisfying all the demand?
Especially with their packaging being different to Seoul, they're not in direct competition in the sense that customers could easily switch from one to another on a whim?

 

[tebore]

AH HA! So my suspicion was correct I'm gonna skip the V-bin and go for the W-bin when it comes out. I'm 90% that using the Seoul phosphor the dies used for the Q5 that it will easily push the envelope of the V-bin in to W-bin territory.

 

[uk_caver]

Are Cree simply making brighter dies, or are they doing things with their phosphors?

 

[daveman]

I just wanted to start a thread I can subscribe to for the lookout for V-bin SSC LEDs(118 - 154 lumens.) Word is they ought to be available third quarter this year. If anybody finds any information or any for sale please post here.

118-154 lumens @ 350 mA?! That's the problem with SSC leds. With a variation range of 36 lumens for a potential output of 118 lumens, that's just too large to be taken seriously. They might as well say it'll be between 1-500 lumens @ 350 mA.

http://www.candlepowerforums.com/vb/showthread.php?t=172379

A thread a couple of slots down from this one shows a fellow member's numbers on a variety of power LEDs. At almost all input levels, the Cree XR-E Q4 smoked the SSC U bin in output. Yet on paper, the SSC U bin is suppose to have a higher max. output.

 

[uk_caver]

Certainly, Cree do have much tighter bins, but Seoul aren't in a hugely different position to Lumileds, who have bins covering ranges like 114-148lm and 148-192lm. The ratio from one end of a bin to another seems to be basically 3:4.

As far as I'm concerned, even with Seoul's existing bins, LEDs from opposite ends of a bin are not likely to look much different in practice without very careful comparison.
I'd welcome somewhat tighter bins (maybe half as wide?), but the reason I'd like tighter bins would be that the people looking for the absolute brightest LEDs could get them with confidence, and pay a price premium that would ideally make my slightly lower-spec purchases cheaper.

 

[tebore]

It's been like 4 months since the first prototypes were seen of the V-bins does anyone have any news?

 

[PhantomPhoton]

V or W ... Bring 'em on! I have a couple hosts just waiting for them.

 

[daveman]

It's been like 4 months since the first prototypes were seen of the V-bins does anyone have any news?

Don't hold your breath, I think Seoul is busy with dealing with Nichia or some other giant company in a lawsuit of somekind. Even without the lawsuit, the release wouldn't be up to SSC as Cree will have to okay the shipment of the die to SSC. This could take till after next summer.