CLD DS-39 REV0
PRODUCT FAMILY DATA SHEET
Cree XLamp ML-B LEDs
®
®
PRODUCT DESCRIPTION
The Cree XLamp ML-B LED brings
lighting-class reliability and per-
formance to 1/4-watt LEDs.
The
XLamp ML-B expands Cree’s light-
ing-class leadership to linear and
distributed
lighting
applications.
With XLamp lighting-class reliabil-
ity, a wide viewing angle, uniform
light output, and industry-leading
chromaticity binning in a 3.5-mm
X 3.5-mm package, the XLamp
ML-B LED continues Cree’s history
of segment-focused product inno-
vation in LEDs for lighting applica-
tions.
The XLamp ML-B LED brings high
performance and a smooth look to
a wide range of lighting applica-
tions, including linear lighting, fluo-
rescent retrofits and retail-display
WWW. CREE.COM/XLAMP
lighting.
FEATURES
• Available in white (2,600 K
to 8,300 K CCT)
• ANSI-compatible sub-bins
• Maximum drive current:
175 mA
• 120° viewing angle, uniform
chromaticity profile
• Electrically neutral thermal
path
• RoHS and REACH-compliant
• Unlimited floor life at
≤ 30°C/85% RH
TABLE OF CONTENTS
Flux Characteristics (T
J
= 25°C
) . . . . . .
2
Characteristics
... .. ... ... . . . . . . . . . . . . . . .
2
Relative Spectral Power
Distribution
. ... ... ... ... . . . . . . . . . . . . .
3
Relative Flux vs. Junction
Temperature (I
F
= 80 mA)
. . . . . . . .
3
Electrical Characteristics
(T
J
= 25°C)
. ... ... .. ... . . . . . . . . . . . . . .
4
Relative Flux vs. Current
T
J
= 25°C)
.. ... ... ... .. . . . . . . . . . . . . .
4
Thermal Design
. ... ... .. ... . . . . . . . . . . . . .
5
Typical Spatial Distribution
. . . . . . . . . . . .
5
Reflow Soldering Characteristics
. . . . . .
6
Notes
. ... ... .. ... ... ... ... .. . . . . . . . . . . . . .
7
Mechanical Dimensions (T
A
= 25°C).. 8
Tape and Reel
... ... ... ... . . . . . . . . . . . . . . .
9
Packaging
.. ... ... .. ... ... .. . . . . . . . . . . . .
10
Copyright © 2010 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.
Cree, Inc.
4600 Silicon Drive
Durham, NC 27703
USA Tel: +1.919.313.5300
XLAMP ML-B LEDS
FLUX CHARACTERISTICS (T
J
= 25°C)
The following table provides several base order codes for XLamp ML-B LEDs. It is important to note that the base order
codes listed here are a subset of the total available order codes for the product family. For more order codes, as well
as a complete description of the order-code nomenclature, please consult the XLamp ML-B LED Binning and Labeling
document.
Base Order Codes
Min Luminous Flux
(lm) @ 80 mA
Group
J0
H0
J0
H0
J0
Flux (lm)
23.5
18.1
23.5
18.1
23.5
MLBAWT-A1-0000-000W51
MLBAWT-A1-0000-000VE5
MLBAWT-A1-0000-000WE5
MLBAWT-A1-0000-000VE7
MLBAWT-A1-0000-000WE7
Color
CCT Range
Min.
Max.
8,300 K
4,300 K
Order Code
Cool White
5,000 K
3,700 K
Warm White
2,800 K
3,200 K
Notes:
• Cree maintains a tolerance of +/- 7% on flux measurements.
• Typical CRI for Cool White (4,300 K – 8,300 K CCT) is 75.
• Typical CRI for Warm White (2,600 K – 4,300 K CCT) is 80.
CHARACTERISTICS
Characteristics
Thermal resistance, junction to solder point
Viewing angle (FWHM)
Temperature coefficient of voltage
ESD classification (HBM per Mil-Std-883D)
DC forward current
Reverse voltage
Forward voltage (@ 80 mA)
LED junction temperature
mA
V
V
°C
3.3
Unit
°C/W
degrees
mV/°C
Minimum
Typical
25
120
-3.5
Class 2
80
175
5
3.5
150
Maximum
Copyright © 2010 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.
2
XLAMP ML-B LEDS
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.
200
180
160
140
Maximum Current (mA)
120
100
80
60
40
Rj-a = 30°C/W
Rj-a = 40°C/W
Rj-a = 50°C/W
Rj-a = 60°C/W
0
25
50
75
100
125
150
20
0
Ambient Temperature (ºC)
TYPICAL SPATIAL DISTRIBUTION
120
Relative Luminous Intensity (%)
100
80
60
40
20
0
-90
-70
-50
-30
-10
10
30
50
70
90
Angle (º)
Copyright © 2010 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.
5
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