Datasheet

Copyright © 2013-2014 Cree, Inc. All rights reserved. The information in this document is subject to change without notice. Cree
®
, the Cree logo and XLamp
®
are registered
trademarks of Cree, Inc.
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xlamp
®
xH-G led
TYPICAL SPATIAL DISTRIBUTION
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.
Typical Spatial Radiation Pattern
curve smoothed with trendline
0
10
20
30
40
50
60
70
80
90
100
-90 -70 -50 -30 -10 10 30 50 70 90
Relative Luminous Intensity (%)
Angle (º)
Thermal Design
0
50
100
150
200
250
300
350
400
0 20 40 60 80 100 120 140
Maximum Current (mA)
Ambient Temperature (ºC)
Rj-a = 25 °C/W
Rj-a = 30 °C/W
Rj-a = 35 °C/W
Rj-a = 40 °C/W
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