NewBie
*Retired*
Issac,
The Nichia parts, like many semiconductor parts should be kept in a low humidity environment, as moisture (humidity) gets into the parts otherwise, and can cause them to pop apart like popcorn, or cause other minor damage during surface mount reflow. An example would be the silicone or phosphor blowing apart or delaminating.
The Luxeons are --->*NOT*<--- designed for surface mount reflow ovens, and you'll most likely completely destroy the part. The Luxeon package is not designed for such "abuse".
One of these days LumiLEDs will catch up to reality of modern day manufacturing techniques and package requirements. Others like OSRAM, Nichia, and CREE are already there.
Here is some comparision shots, the paper is sitting at a 45 degree angle.
The Luxeon is one of the Lux III, TWOK, recent purchase.
The Nichia is a Jupiter.
The Cree is a very old part, the have improved the device *very* significantly since this photo.
All parts are mounted on the same type and size of heatsink and have exactly the same current flowing through them, as they are all wired in series.
The Nichia parts, like many semiconductor parts should be kept in a low humidity environment, as moisture (humidity) gets into the parts otherwise, and can cause them to pop apart like popcorn, or cause other minor damage during surface mount reflow. An example would be the silicone or phosphor blowing apart or delaminating.
The Luxeons are --->*NOT*<--- designed for surface mount reflow ovens, and you'll most likely completely destroy the part. The Luxeon package is not designed for such "abuse".
One of these days LumiLEDs will catch up to reality of modern day manufacturing techniques and package requirements. Others like OSRAM, Nichia, and CREE are already there.
Here is some comparision shots, the paper is sitting at a 45 degree angle.
The Luxeon is one of the Lux III, TWOK, recent purchase.
The Nichia is a Jupiter.
The Cree is a very old part, the have improved the device *very* significantly since this photo.
All parts are mounted on the same type and size of heatsink and have exactly the same current flowing through them, as they are all wired in series.
