Datasheet

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®
, the Cree logo, XLamp
®
and SC³ Technology
®
are registered trademarks of Cree, Inc. ENERGY STAR
®
is a registered trademark of the U.S. Environmental Protection Agency.
5
xlamp
®
xB-E HVW lEds
5
THERMAL DESIGN
The maximum forward current is determined by the thermal resistance between the LED junction and ambient. It is
crucial for the end product to be designed in a manner that minimizes the thermal resistance from the solder point to
ambient in order to optimize lamp life and optical characteristics.
Thermal Design - XB-E
tall dome
0
20
40
60
80
100
120
140
0 20 40 60 80 100 120 140
Maximum Current (mA)
Ambient Temperature (ºC)
Rj-a = 10°C/W
Rj-a = 15°C/W
Rj-a = 20°C/W
Rj-a = 25°C/W