CLD-DS166 Rev 1A
Product family data sheet
Cree
®
XLamp
®
CMT1945 LED
ProDuCT DEsCriPTion
The
Cree
XLamp
®
High-Current
LeD Array family is optimized for
best‑in‑class lumen output, efficacy
and reliability at high drive currents.
XLamp CMT LeDs deliver performance
in industry-compatible packages and
LeSes, enabling lighting manufacturers
to upgrade their designs for applications
such as track, downlight and outdoor
lighting.
XLamp
High-Current
LeD
Arrays are available in 2-step, 3-step
and 5-step easyWhite
®
bins.
fEaTurEs
•
•
•
•
•
•
•
•
•
•
•
14.5-mm optical source
Available in 70-, 80- and 90- and
95-minimum CRI options
Cree easyWhite
®
2-, 3- and 5-step
binning
Premium Color 2- and 3-step binning
Forward voltage option: 36-v class
85 °C binning and characterization
Maximum drive current: 2500 mA
115° viewing angle, uniform
chromaticity profile
Top-side solder connections
RoHS compliant
UL
®
recognized component
(e349212)
TabLE of ConTEnTs
Characteristics ............................................2
Operating Limits ..........................................2
Flux Characteristics, easyWhite
®
Order
Codes and Bins ...........................................3
Flux Characteristics, Premium Color
Order Codes and Bins .................................4
Relative Spectral Power Distribution,
easyWhite
®
LeDs.........................................5
Relative Spectral Power Distribution,
Premium Color LeDs...................................6
electrical Characteristics ............................8
Relative Luminous Flux ...............................9
Typical Spatial Distribution.........................9
Performance Groups - Chromaticity ....... 10
Premium Color Performance Groups -
Chromaticity ............................................. 11
Cree easyWhite
®
Bins Plotted on the
1931 CIe Color Space .............................. 12
Cree Premium Color Bins Plotted on the
1931 CIe Color Space .............................. 13
Bin and Order Code Formats ................... 15
Mechanical Dimensions .......................... 16
Thermal Design ........................................ 17
Notes ........................................................ 18
Packaging ................................................. 19
WWW.CREE.Com/XLAmp
Copyright © 2017-2018 Cree, Inc. All rights reserved. The information in this document is subject to change without notice. Cree
®
, XLamp
®
and
EasyWhite
®
are registered trademarks and the Cree logo 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
®
CmT1945 LED
CharaCTErisTiCs
Characteristics
viewing angle (FWHM)
eSD withstand voltage (JeDeC JS-001-2012)
DC forward current
Reverse current
Forward voltage (@ 1200 mA, 85 °C)
unit
degrees
v
mA
mA
v
34.7
Minimum
Typical
115
Class 3A
2500*
0.1
38.2
Maximum
*
Refer to the Operating Limits section.
oPEraTing LiMiTs
The maximum current rating of the CMT1945 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. either solder pad shown in the Mechanical
Dimensions section on page 16 can be used as 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 140 °C to ensure optimal LED lifetime. Please refer to the Thermal Design section on page 14 for more
information on LeS temperature measurement.
CMT1945
2750
2500
2250
2000
85 °C, 2500 mA
1750
If (mA)
1500
1250
1000
750
500
250
0
125 °C, 962 mA
0
25
50
75
100
125
150
Case Temperature (°C)
Copyright © 2017-2018 Cree, Inc. All rights reserved. The information in this document is subject to change without notice. Cree
®
, XLamp
®
and EasyWhite
®
are registered trademarks and the Cree logo is a
trademark of Cree, Inc. UL
®
and the UR logo are registered trademarks of UL LLC.
2
XLamp
®
CmT1945 LED
fLuX CharaCTErisTiCs, EasyWhiTE
®
orDEr CoDEs anD bins (i
f
= 1200 ma,
T
J
= 85 °C)
The following table provides order codes for XLamp CMT1945 LeDs. For a complete description of the order code nomenclature, please
see the Bin and Order Code Formats section (page 15).
nominal
CCT
Cri
Min.
70
6500 K
80
70
5700 K
80
90
70
5000 K
80
90
70
4000 K
80
90
80
3500 K
90
70
3000 K
80
90
80
2700 K
90
92
4287
4609
27H
92
73
82
92
82
4694
5606
5310
4490
5095
5047
6027
5710
4828
5479
30H
30H
27H
CMT1945-0000-
000N0H0A30H
CMT1945-0000-
000N0U0A30H
CMT1945-0000-
000N0H0A27H
CMT1945-0000-
000N0U0A27H
30G
30G
27G
27G
CMT1945-0000-
000N0H0A30G
CMT1945-0000-
000N0U0A30G
CMT1945-0000-
000N0H0A27G
CMT1945-0000-
000N0U0A27G
35H
82
73
82
92
73
82
92
73
82
92
82
5723
6251
5839
4967
6070
5670
4967
6024
5606
4827
5469
6153
6721
6279
5341
6526
6097
5341
6477
6027
5190
5880
40H
40H
35H
CMT1945-0000-
000N0H0A40H
CMT1945-0000-
000N0U0A40H
CMT1945-0000-
000N0H0A35H
CMT1945-0000-
000N0U0A35H
40G
40G
35G
35G
CMT1945-0000-
000N0H0A40G
CMT1945-0000-
000N0U0A40G
CMT1945-0000-
000N0H0A35G
CMT1945-0000-
000N0U0A35G
30e
CMT1945-0000-
000N0B0A30e
50G
50G
CMT1945-0000-
000N0H0A50G
CMT1945-0000-
000N0U0A50G
40e
CMT1945-0000-
000N0B0A40e
57G
CMT1945-0000-
000N0U0A57G
50e
CMT1945-0000-
000N0B0A50e
65e
57e
57e
Typ
73
Minimum
Luminous
Flux (lm)
6126
Typical
Luminous
Flux (lm)
6587
2-step
group
order Code
group
3-step
order Code
group
65e
5-step
order Code
CMT1945-0000-
000N0B0A65e
CMT1945-0000-
000N0H0A65e
CMT1945-0000-
000N0B0A57e
CMT1945-0000-
000N0H0A57e
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 18).
•
For 80 CRI minimum LeDs, CRI R9 minimum is 0 with a ±2 tolerance. For 90 CRI minimum LeDs, CRI R9 typical is 60.
Copyright © 2017-2018 Cree, Inc. All rights reserved. The information in this document is subject to change without notice. Cree
®
, XLamp
®
and EasyWhite
®
are registered trademarks and the Cree logo is a
trademark of Cree, Inc. UL
®
and the UR logo are registered trademarks of UL LLC.
3
XLamp
®
CmT1945 LED
fLuX CharaCTErisTiCs, PrEMiuM CoLor orDEr CoDEs anD bins (i
f
= 1200 ma,
T
J
= 85 °C)
fidelity
nominal
CCT
4000 K
3500 K
3000 K
2700 K
Cri*
Min.
95
95
95
95
Typ
98
98
98
98
Minimum
Luminous
Flux (lm)
4323
4207
3934
3725
Typical
Luminous
Flux (lm)
4648
4524
4230
4005
2-step
group
L5A
35H
30H
27H
order Code
CMT1945-0000-000N0Z0AL5A
CMT1945-0000-000N0Z0A35H
CMT1945-0000-000N0Z0A30H
CMT1945-0000-000N0Z0A27H
specialty
nominal
CCT
3100 K
Cri
Min.
90
80
3000 K
90
95
Typ
92
82
92
98
Minimum
Luminous
Flux (lm)
4490
5310
4490
3934
Typical
Luminous
Flux (lm)
4828
5710
4828
4230
L7C
CMT1945-0000-
000N0Z0AL7C
L7B
CMT1945-0000-
000N0H0AL7B
30Q
CMT1945-0000-
000N0U0A30Q
30U
CMT1945-0000-
000N0U0A30U
2-step
group
order Code
group
31Q
order Code
CMT1945-0000-
000N0U0A31Q
3-step
group
order Code
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 18).
•
For 80 CRI minimum LeDs, CRI R9 minimum is 0 with a ±2 tolerance. For 90 CRI minimum LeDs, CRI R9 typical is 60.
Copyright © 2017-2018 Cree, Inc. All rights reserved. The information in this document is subject to change without notice. Cree
®
, XLamp
®
and EasyWhite
®
are registered trademarks and the Cree logo is a
trademark of Cree, Inc. UL
®
and the UR logo are registered trademarks of UL LLC.
4
XLamp
®
CmT1945 LED
rELaTivE sPECTraL PoWEr DisTribuTion, EasyWhiTE
®
LEDs
EZW 70 CRI
The following graphs are the result of a series of pulsed measurements at 1200 mA and T
J
= 85 °C.
100%
90%
Relative Spectral Power Distribution
Relative Spectral Power
80%
70%
60%
50%
40%
30%
20%
10%
0%
380
430
480
530
580
630
680
730
780
6500 K, 70 CRI
5700 K, 70 CRI
5000 K, 70 CRI
4000 K, 70 CRI
3000 K, 70 CRI
Wavelength (nm)
EZW 80 CRI
100%
90%
Relative Spectral Power
80%
70%
60%
50%
40%
30%
20%
10%
0%
380
430
480
530
580
630
680
730
780
6500 K, 80 CRI
5700 K, 80 CRI
5000 K, 80 CRI
4000 K, 80 CRI
3500 K, 80 CRI
3000 K, 80 CRI
2700 K, 80 CRI
Wavelength (nm)
Copyright © 2017-2018 Cree, Inc. All rights reserved. The information in this document is subject to change without notice. Cree
®
, XLamp
®
and EasyWhite
®
are registered trademarks and the Cree logo is a
trademark of Cree, Inc. UL
®
and the UR logo are registered trademarks of UL LLC.
5
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