Datasheet
22
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®
, the Cree logo, XLamp
®
and EasyWhite
®
are registered trademarks of Cree,
Inc. UL
®
and the UR logo are registered trademarks of UL LLC.
2
XLamp
®
CXa1816 LED
CHARACTERISTICS
Characteristics Unit Minimum Typical Maximum
Viewing angle (FWHM) degrees 115
ESD withstand voltage (HBM per Mil‑Std‑883D) V 8000
DC forward current mA 900*
Reverse current mA 0.1
Forward voltage (450mA, 85°C) V 36.2
Forward voltage (450mA, 25°C) V 42
* Refer to the Operating Limits section.
OPERATING LIMITS
The maximum current rating of the CXA1816 is dependent on the case temperature (Tc) when the LED has reached thermal equilibrium
under steady‑state operation. The graph shown below assumes that the system design employs good thermal management (thermal
interface material and heat sink) and may vary when poor thermal management is employed. Please refer to the Mechanical Dimensions
section on page 14 for the location of the Tc measurement point.
CXA1816
0
100
200
300
400
500
600
700
800
900
1000
0 25 50 75 100 125 150
If (mA)
Case Temperature (°C)