Are the new CREE bins just higher Vf

[orbital]

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Been thinking about this since the Q2 came out.

Is CREE just increasing forward voltage on new bins,
or is it a physical die change?

 

[ifor powell]

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Been thinking about this since the Q2 came out.

Is CREE just increasing forward voltage on new bins,
or is it a physical die change?

We of course do not know. I would hope that Cree would know but it's not somthing they are liable to make public. Everything they let out is basicaly in the spec. Unless you were to do your own sorting then you have to cope with the variation.

Personaly I have not been doing this for long so can not go back but the 8 q5's I have had have averaged 0.15V over the 4 R2's I just recived so I was very happy with the R2's but I have a 0.3V range on my Q5's and 0.15 on the R2's

There was a post requesting people to post there readings but I could not find it when I tried searching.... What is needed is a database where people can submit there own readings then we could get a good size of sample and have the ability to look over time.

Ifor