CLD-DS123 Rev 6A
Product family data sheet
Cree
®
XLamp
®
CXB2540 LED
ProDuCt DEsCriPtion
XLamp
®
CXA2 LeD Arrays lead the
industry in efficacy and reliability for
ceramic‑based COB LEDs. Cree CXA2
LeDs easily deliver TM-21 lifetimes
well beyond L90 60,000 hours under
a wide range of operating conditions.
CXA2 LeD Arrays share the same
physical design as XLamp CXA and
CMA LED families, allowing lighting
manufacturers to leverage the existing
optical,
mechanical
and
electrical
fEaturEs
•
•
19‑mm optical source
Mechanical and optical design
consistent with other CXA25 and
CXB25 LEDs
•
•
•
Cree easyWhite
®
2‑, 3‑ and 5‑step
binning
Premium Color 2‑ and 3‑step binning
Standard & Premium Color LEDs
available in 70, 80, 90 and 95 CRI
minimum options
•
•
•
•
•
•
•
•
•
eTone™ LEDs available in 90 CRI
minimum option
Forward voltage option: 36‑V class
85 °C binning and characterization
Extremely uniform color over viewing
angle
Top‑side solder connections
Thermocouple attach point
NEMA SSL‑3 2011 standard flux bins
RoHS and REACh compliant
UL
®
recognized component
(E349212)
taBLE of ContEnts
Characteristics ............................................2
Operating Limits ..........................................3
Flux Characteristics, Order Codes & Bins ‑
Standard LeDs
.............................................4
Flux Characteristics, Order Codes & Bins ‑
Standard LEDs, Premium Color ..................7
Flux Characteristics, Order Codes and
Bins ‑ eTone™ LEDs .....................................8
Relative Spectral Power Distribution ‑
Standard LeDs
.............................................9
Relative Spectral Power Distribution ‑
Standard LEDs, Premium Color ............... 10
Relative Spectral Power Distribution ‑
eTone™ LEDs ............................................
11
Electrical Characteristics .........................
11
Relative Luminous Flux ............................
12
Typical Spatial Distribution......................
13
Performance Groups ‑ Brightness ..........
13
Performance Groups ‑ Chromaticity .......
14
Premium Color Performance Groups ‑
Chromaticity ............................................. 15
Cree’s EasyWhite
®
Bins Plotted on the
1931 CIE Color Space ..............................
16
Cree Premium Color Bins Plotted on the
1931 CIE Color Space .............................. 17
design elements to accelerate time to
market without additional cost.
CXA2 Standard Density LeD Arrays are
now available in two different versions:
Standard and eTone™ LEDs. The eTone
version delivers beautiful 90 CRI light
quality at the same efficacy as today’s
standard 80 CRI LEDs.
WWW.CREE.Com/XLAmp
Bin and Order Code Formats ................... 19
Mechanical Dimensions .......................... 20
Thermal Design
........................................
21
Notes ........................................................
22
Packaging .................................................
23
Copyright © 2015-2018 Cree, Inc. All rights reserved. The information in this document is subject to change without notice. Cree
®
, the Cree logo,
XLamp
®
and EasyWhite
®
are registered trademarks and eTone™ is a trademark of Cree, Inc. UL
®
and the UR logo are registered trademarks of UL LLC.
Cree, Inc.
4600 Silicon Drive
Durham, NC 27703
USA Tel: +1.919.313.5300
XLamp
®
CXB2540 LED
oPErating LiMits
The maximum current rating of the CXB2540 depends 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 20 for the location of the Tc measurement point.
Another important factor in good thermal management is the temperature of the Light Emitting Surface (LES). Cree recommends a
maximum LES temperature of 135 °C to ensure optimal LED lifetime. Please refer to the Thermal Design section on page 21 for more
information on LES temperature measurement.
CXB2540 - Standard
2400
2100
1800
1500
85 °C, 2100 mA
Standard LEDs
If (mA)
1200
900
600
300
0
125 °C,
808 mA
0
25
50
75
100
125
150
CXB2540 - eTone
2400
2100
1800
1500
Case Temperature (°C)
85 °C, 1923 mA
eTone LEDs
If (mA)
1200
900
600
300
0
0
25
50
75
100
125
150
Case Temperature (°C)
Copyright © 2015-2018 Cree, Inc. All rights reserved. The information in this document is subject to change without notice. Cree
®
, the Cree logo, XLamp
®
and EasyWhite
®
are registered trademarks and
eTone™ is a trademark of Cree, Inc. UL
®
and the UR logo are registered trademarks of UL LLC.
3
XLamp
®
CXB2540 LED
fLuX CharaCtEristiCs, orDEr CoDEs & Bins - stanDarD LEDs (i
f
= 1100 ma,
t
J
= 85 °C)
The following table provides order codes for XLamp CXB2540 LEDs. For a complete description of the order code nomenclature, please
see the Bin and Order Code Formats section (page 19).
Cri*
Min
typ
Minimum Luminous flux
group
W4
70
---
X2
X4
6500 K
W4
80
---
X2
X4
W4
70
---
X2
X4
5700 K
W4
80
---
X2
X4
5225
5590
6010
5784
6188
6653
57E
5225
5590
6010
5225
5590
6010
5784
6188
6653
5784
6188
6653
57E
65E
Flux (lm) Flux (lm)
group
@ 85 °C @ 25 °C**
5225
5590
6010
5784
6188
6653
65E
2-step
order Code
group
3-step
order Code
group
5-step
order Code
CXB2540‑0000‑
000N0BW465E
CXB2540‑0000‑
000N0BX265E
CXB2540‑0000‑
000N0BX465E
CXB2540‑0000‑
000N0HW465E
CXB2540‑0000‑
000N0HX265E
CXB2540‑0000‑
000N0HX465E
CXB2540‑0000‑
000N0BW457E
CXB2540‑0000‑
000N0BX257E
CXB2540‑0000‑
000N0BX457E
CXB2540‑0000‑
000N0HW457E
CXB2540‑0000‑
000N0HX257E
CXB2540‑0000‑
000N0HX457E
nominal
CCt
Notes
•
Cree maintains a tolerance of ±7% on flux and power measurements, ±0.005 on chromaticity (CCx, CCy) measurements and a tolerance of ±2 on CRI
measurements. See the Measurements section (page 22).
•
Cree XLamp CXB2540 LED order codes specify only a minimum flux bin and not a maximum. Cree may ship reels in flux bins higher than the minimum
specified by the order code without advance notice. Shipments will always adhere to the chromaticity bin restrictions specified by the order code.
*
For 80 CRI minimum LEDs, CRI R9 minimum is 0 with a ±2 tolerance. For 90 CRI minimum LEDs, CRI R9 typical is 60.
** Flux values @ 25 °C are calculated and for reference only.
Copyright © 2015-2018 Cree, Inc. All rights reserved. The information in this document is subject to change without notice. Cree
®
, the Cree logo, XLamp
®
and EasyWhite
®
are registered trademarks and
eTone™ is a trademark of Cree, Inc. UL
®
and the UR logo are registered trademarks of UL LLC.
4
XLamp
®
CXB2540 LED
fLuX CharaCtEristiCs, orDEr CoDEs & Bins - stanDarD LEDs (i
f
= 1100 ma,
t
J
= 85 °C) - Continued
nominal
CCt
Cri*
Min
typ
Minimum Luminous flux
group
W4
70
---
X2
X4
W4
5000 K
80
---
X2
X4
v4
90
92
W2
W4
W4
70
---
X2
X4
W2
4000 K
80
---
W4
X2
v2
90
92
v4
W2
Flux (lm) Flux (lm)
group
@ 85 °C @ 25 °C**
5225
5590
6010
5225
5590
6010
4545
4860
5225
5225
5590
6010
4860
5225
5590
4230
4545
4860
5784
6188
6653
5784
6188
6653
5031
5380
5784
5784
6188
6653
5380
5784
6188
4683
5031
5380
40H
40H
CXB2540‑0000‑
000N0HW240H
CXB2540‑0000‑
000N0HW440H
CXB2540‑0000‑
000N0HX240H
CXB2540‑0000‑
000N0UV240H
CXB2540‑0000‑
000N0UV440H
CXB2540‑0000‑
000N0UW240H
40G
40G
CXB2540‑0000‑
000N0HW240G
CXB2540‑0000‑
000N0HW440G
CXB2540‑0000‑
000N0HX240G
CXB2540‑0000‑
000N0UV240G
CXB2540‑0000‑
000N0UV440G
CXB2540‑0000‑
000N0UW240G
40E
50G
50G
CXB2540‑0000‑
000N0HW450G
CXB2540‑0000‑
000N0HX250G
CXB2540‑0000‑
000N0HX450G
CXB2540‑0000‑
000N0UV450G
CXB2540‑0000‑
000N0UW250G
CXB2540‑0000‑
000N0UW450G
CXB2540‑0000‑
000N0BW440E
CXB2540‑0000‑
000N0BX240E
CXB2540‑0000‑
000N0BX440E
50E
50E
2-step
order Code
group
3-step
order Code
group
5-step
order Code
CXB2540‑0000‑
000N0BW450E
CXB2540‑0000‑
000N0BX250E
CXB2540‑0000‑
000N0BX450E
CXB2540‑0000‑
000N0HW450E
CXB2540‑0000‑
000N0HX250E
CXB2540‑0000‑
000N0HX450E
Notes
•
Cree maintains a tolerance of ±7% on flux and power measurements, ±0.005 on chromaticity (CCx, CCy) measurements and a tolerance of ±2 on CRI
measurements. See the Measurements section (page 22).
•
Cree XLamp CXB2540 LED order codes specify only a minimum flux bin and not a maximum. Cree may ship reels in flux bins higher than the minimum
specified by the order code without advance notice. Shipments will always adhere to the chromaticity bin restrictions specified by the order code.
*
For 80 CRI minimum LEDs, CRI R9 minimum is 0 with a ±2 tolerance. For 90 CRI minimum LEDs, CRI R9 typical is 60.
** Flux values @ 25 °C are calculated and for reference only.
Copyright © 2015-2018 Cree, Inc. All rights reserved. The information in this document is subject to change without notice. Cree
®
, the Cree logo, XLamp
®
and EasyWhite
®
are registered trademarks and
eTone™ is a trademark of Cree, Inc. UL
®
and the UR logo are registered trademarks of UL LLC.
5