CMA2550-0000-00PN0U0A40G - CREE

PRODUCT FAMILY DATA SHEET

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

WWW.CREE.COM/XLAMP

CLD-DS162 REV 4

Cree® XLamp® CMA2550 LED

PRODUCT DESCRIPTION

Cree’s XLamp® High-Current LED Array

family is optimized for best-in-class

lumen output, efcacy and reliability at

high drive currents. XLamp CMA LEDs

share the same package design and

LES sizes as Cree’s industry-leading

CXA2 Standard Density LEDs, enabling

lighting manufacturers to address a

range of performance requirements for

applications such as track, downlight

and outdoor lighting using a single

easy-to-use platform.

High-Current 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 efcacy

as today’s standard 80 CRI LEDs.

Featuring the same mechanical and

optical characteristics as the Standard

version, the eTone LEDs allow easy

upgrades from 80 CRI to 90 CRI without

sacricing performance.

FEATURES

• 19-mm optical source

• Mechanical and optical design

consistent with 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 and 95

CRI minimum options

• Forward voltage option: 36-V class

• 85°C binning and characterization

• Maximum drive current: 3300mA

• 115° viewing angle, uniform

chromaticity profile

• Top-side solder connections

• 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 ..................5

Flux Characteristics, Order Codes and

Bins - eTone™ LEDs .....................................6

Relative Spectral Power Distribution -

Standard LEDs .............................................7

Relative Spectral Power Distribution -

Standard LEDs, Premium Color ..................8

Relative Spectral Power Distribution -

eTone™ LEDs ............................................ 10

Electrical Characteristics ......................... 11

Relative Luminous Flux ............................ 12

Typical Spatial Distribution ...................... 12

Performance Groups - Chromaticity ....... 13

Premium Color Performance Groups -

Chromaticity ............................................. 14

Cree’s EasyWhite® Bins Plotted on the

1931 CIE Color Space .............................. 15

Cree Premium Color Bins Plotted on the

1931 CIE Color Space .............................. 16

Bin and Order Code Formats ................... 18

Mechanical Dimensions .......................... 19

Thermal Design ........................................ 20

Notes ........................................................ 21

Packaging ................................................. 22

eTone™ is a trademark of Cree, Inc. UL® and the UR logo are registered trademarks of UL LLC.

2

XLAMP® CMA2550 LED

CHARACTERISTICS

Characteristics Unit Minimum Typical Maximum

Viewing angle (FWHM) degrees 115

ESD withstand voltage (JEDEC JS-001-2012) V Class 3A

DC forward current - Standard mA 3300*

DC forward current - eTone mA 2160*

Reverse current mA 0.1

Forward voltage (@ 1400mA, Tj = 85°C) V 34.0 37.4

* Refer to the Operating Limits section.

eTone™ is a trademark of Cree, Inc. UL® and the UR logo are registered trademarks of UL LLC.

3

XLAMP® CMA2550 LED

OPERATING LIMITS

The maximum current rating of the CMA2550 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 19 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 20 for more

information on LES temperature measurement.

CMA2550 - Standard

0

500

1000

1500

2000

2500

3000

3500

025 50 75 100 125 150

If (mA)

Case Temperature (°C)

85 °C, 3300 mA

125 °C, 1269 mA

Standard LEDs

CMA2550 - eTone

0

250

500

750

1000

1250

1500

1750

2000

2250

025 50 75 100 125 150

If (mA)

Case Temperature (°C)

85 °C, 2160 mA

eTone LEDs

eTone™ is a trademark of Cree, Inc. UL® and the UR logo are registered trademarks of UL LLC.

4

XLAMP® CMA2550 LED

Notes

• Cree maintains a tolerance of ±7% on ux and power measurements, ±0.005 on chromaticity (CCx, CCy) measurements and a tolerance of ±2 on CRI

measurements. See the Measurements section (page 21).

• 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 CHARACTERISTICS, ORDER CODES & BINS - STANDARD LEDS (IF = 1400mA, TJ = 85°C)

The following table provides order codes for XLamp CMA2550 LEDs. For a complete description of the order code nomenclature, please

see the Bin and Order Code Formats section (page 18).

Nominal

CCT

CRI Minimum

Luminous

Flux (lm)

Typical

Luminous

Flux (lm)

2-Step 3-Step 5-Step

Min. Typ Group Order Code Group Order Code Group Order Code

6500 K

70 73 7349 7902 65E CMA2550-0000-

000N0B0A65E

80 82 6865 7382 65E CMA2550-0000-

000N0H0A65E

5700 K

70 73 7499 8063 57E CMA2550-0000-

000N0B0A57E

80 82 7005 7533 57E CMA2550-0000-

000N0H0A57E

90 92 5959 6407 57G CMA2550-0000-

000N0U0A57G

5000K

70 73 7281 7829 50E CMA2550-0000-

000N0B0A50E

80 82 6802 7314 50G CMA2550-0000-

000N0H0A50G

90 92 5959 6407 50G CMA2550-0000-

000N0U0A50G

4000K

70 73 7226 7770 40E CMA2550-0000-

000N0B0A40E

80 82 6725 7231 40H CMA2550-0000-

000N0H0A40H 40G CMA2550-0000-

000N0H0A40G

90 92 5790 6226 40H CMA2550-0000-

000N0U0A40H 40G CMA2550-0000-

000N0U0A40G

3500K

80 82 6561 7054 35H CMA2550-0000-

000N0H0A35H 35G CMA2550-0000-

000N0H0A35G

90 92 5631 6055 35H CMA2550-0000-

000N0U0A35H 35G CMA2550-0000-

000N0U0A35G

3000K

70 73 6725 7231 30E CMA2550-0000-

000N0BY430E

80 82 6371 6850 30H CMA2550-0000-

000N0H0A30H 30G CMA2550-0000-

000N0H0A30G

90 92 5386 5792 30H CMA2550-0000-

000N0U0A30H 30G CMA2550-0000-

000N0U0A30G

2700K

80 82 6113 6573 27H CMA2550-0000-

000N0H0A27H 27G CMA2550-0000-

000N0H0A27G

90 92 5143 5530 27H CMA2550-0000-

000N0U0A27H 27G CMA2550-0000-

000N0U0A27G

2200K 80 82 5386 5792 22G CMA2550-0000-

000N0H0A22G

eTone™ is a trademark of Cree, Inc. UL® and the UR logo are registered trademarks of UL LLC.

5

XLAMP® CMA2550 LED

Notes

• Cree maintains a tolerance of ±7% on ux and power measurements, ±0.005 on chromaticity (CCx, CCy) measurements and a tolerance of ±2 on CRI

measurements. See the Measurements section (page 21).

• 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 CHARACTERISTICS, ORDER CODES & BINS - STANDARD LEDS, PREMIUM COLOR (IF = 1400mA, TJ = 85°C)

Fidelity

Nominal

CCT

CRI Minimum

Luminous

Flux (lm)

Typical

Luminous

Flux (lm)

2-Step

Min. Typ Group Order Code

4000K 95 98 5186 5576 L5A CMA2550-0000-000N0Z0AL5A

3500K 95 98 5047 5427 35H CMA2550-0000-000N0Z0A35H

3000K 95 98 4719 5075 30H CMA2550-0000-000N0Z0A30H

2700K 95 98 4468 4805 27H CMA2550-0000-000N0Z0A27H

Specialty

Nominal

CCT

CRI Minimum

Luminous

Flux (lm)

Typical

Luminous

Flux (lm)

2-Step 3-Step

Min. Typ Group Order Code Group Order Code Group Order Code

3100K 90 92 5386 5792 31Q CMA2550-0000-

000N0U0A31Q

3000K

80 82 6371 6850 L7B CMA2550-0000-

000N0H0AL7B

90 92 5386 5792 30Q CMA2550-0000-

000N0U0A30Q 30U CMA2550-0000-

000N0U0A30U

95 98 4719 5075 L7C CMA2550-0000-

000N0Z0AL7C

eTone™ is a trademark of Cree, Inc. UL® and the UR logo are registered trademarks of UL LLC.

6

XLAMP® CMA2550 LED

Notes

• Cree maintains a tolerance of ±7% on ux and power measurements, ±0.005 on chromaticity (CCx, CCy) measurements and a tolerance of ±2 on CRI

measurements. See the Measurements section (page 21).

• 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 CHARACTERISTICS, ORDER CODES AND BINS - ETONE™ LEDS (IF = 1400mA, TJ = 85°C)

Nominal

CCT

CRI Minimum

Luminous

Flux (lm)

Typical

Luminous

Flux (lm)

2-Step 3-Step

Min. Typ Group Order Code Group Order Code

4000K 90 92 6187 6652 40H CMA2550-0000-00PN0U0A40H 40G CMA2550-0000-00PN0U0A40G

95 98 5501 5915 L5A CMA2550-0000-00PN0Z0AL5A

3500K

90 92 6101 6561 35H CMA2550-0000-00PN0U0A35H 35G CMA2550-0000-00PN0U0A35G

95 98 5462 5873 35H CMA2550-0000-00PN0Z0A35H

3000K

90 92 6052 6508 30H CMA2550-0000-00PN0U0A30H 30G CMA2550-0000-00PN0U0A30G

95 98 5287 5716 30H CMA2550-0000-00PN0Z0A30H

2700K

90 92 5807 6244 27H CMA2550-0000-00PN0U0A27H 27G CMA2550-0000-00PN0U0A27G

95 98 5115 5530 27H CMA2550-0000-00PN0Z0A27H

Specialty

Nominal

CCT

CRI Minimum

Luminous

Flux (lm)

Typical

Luminous

Flux (lm)

2-Step 3-Step

Min. Typ Group Order Code Group Order Code Group Order Code

3100K 90 92 5988 6439 31Q CMA2550-0000-

00PN0U0A31Q

3000K

90 92 6052 6508 30Q CMA2550-0000-

00PN0U0A30Q 30U CMA2550-0000-

00PN0U0A30U

95 98 5198 5620 L7C CMA2550-0000-

00PN0Z0AL7C

eTone™ is a trademark of Cree, Inc. UL® and the UR logo are registered trademarks of UL LLC.

7

XLAMP® CMA2550 LED

RELATIVE SPECTRAL POWER DISTRIBUTION - STANDARD LEDS

The following graphs are the result of a series of pulsed measurements at 1400mA and TJ = 85°C.

Relative Spectral Power Distribution

EZW 70 CRI

0%

10%

20%

30%

40%

50%

60%

70%

80%

90%

100%

380 430 480 530 580 630 680 730 780

Relative Spectral Power

Wavelength (nm)

6500 K, 70 CRI

5700 K, 70 CRI

5000 K, 70 CRI

4000 K, 70 CRI

3000 K, 70 CRI

EZW 80 CRI

0%

10%

20%

30%

40%

50%

60%

70%

80%

90%

100%

380 430 480 530 580 630 680 730 780

Relative Spectral Power

Wavelength (nm)

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

2200 K, 80 CRI

eTone™ is a trademark of Cree, Inc. UL® and the UR logo are registered trademarks of UL LLC.

8

XLAMP® CMA2550 LED

RELATIVE SPECTRAL POWER DISTRIBUTION - STANDARD LEDS (CONTINUED)

RELATIVE SPECTRAL POWER DISTRIBUTION - STANDARD LEDS, PREMIUM COLOR

The following graphs are the result of a series of pulsed measurements at 1400mA and TJ = 85°C.

Fidelity

EZW 90 CRI

0%

10%

20%

30%

40%

50%

60%

70%

80%

90%

100%

380 430 480 530 580 630 680 730 780

Relative Spectral Power

Wavelength (nm)

5700 K, 90 CRI

5000 K, 90 CRI

4000 K, 90 CRI

3500 K, 90 CRI

3000 K, 90 CRI

2700 K, 90 CRI

Fidelity

0%

10%

20%

30%

40%

50%

60%

70%

80%

90%

100%

380 430 480 530 580 630 680 730 780

Relative Spectral Power

Wavelength (nm)

4000 K, Z CRI

3500 K, Z CRI

3000 K, Z CRI

2700 K, Z CRI

eTone™ is a trademark of Cree, Inc. UL® and the UR logo are registered trademarks of UL LLC.

9

XLAMP® CMA2550 LED

RELATIVE SPECTRAL POWER DISTRIBUTION - STANDARD LEDS, PREMIUM COLOR (CONTINUED)

Specialty

Speciality

0%

10%

20%

30%

40%

50%

60%

70%

80%

90%

100%

380 430 480 530 580 630 680 730 780

Relative Spectral Power

Wavelength (nm)

31Q, 3100 K, 90 CRI

Speciality

0%

10%

20%

30%

40%

50%

60%

70%

80%

90%

100%

380 430 480 530 580 630 680 730 780

Relative Spectral Power

Wavelength (nm)

30Q, 3000 K, 90 CRI

30U, 3000 K, 90 CRI

L7B, 3000 K, 80 CRI

L7C, 3000 K, Z CRI

eTone™ is a trademark of Cree, Inc. UL® and the UR logo are registered trademarks of UL LLC.

10

XLAMP® CMA2550 LED

RELATIVE SPECTRAL POWER DISTRIBUTION - ETONE™ LEDS

The following graphs are the result of a series of pulsed measurements at 1400mA and TJ = 85°C.

eTone

0%

10%

20%

30%

40%

50%

60%

70%

80%

90%

100%

380 430 480 530 580 630 680 730 780

Relative Spectral Power

Wavelength (nm)

4000 K, 90 CRI

3500 K,90 CRI

3000 K, 90 CRI

2700 K, 90 CRI

eTone

0%

10%

20%

30%

40%

50%

60%

70%

80%

90%

100%

380 430 480 530 580 630 680 730 780

Relative Spectral Power

Wavelength (nm)

4000 K, Z CRI

3500 K, Z CRI

3000 K, Z CRI

2700 K, Z CRI

eTone™ is a trademark of Cree, Inc. UL® and the UR logo are registered trademarks of UL LLC.

11

XLAMP® CMA2550 LED

ELECTRICAL CHARACTERISTICS

The following graph is the result of a series of steady-state measurements.

32

33

34

35

36

37

38

700 900 1100 1300 1500 1700 1900 2100 2300 2500 2700 2900 3100 3300

Voltage (V)

Current (mA)

Tc = 25 °C

Tc = 55 °C

Tc = 85 °C

Tc = 105 °C

eTone™ is a trademark of Cree, Inc. UL® and the UR logo are registered trademarks of UL LLC.

12

XLAMP® CMA2550 LED

RELATIVE LUMINOUS FLUX

The relative luminous ux values provided below are the ratio of measurements of the CMA2550 LED at steady-state operation at the

given conditions, divided by the ux measured during binning, which is a pulsed measurement at 1400mA at TJ = 85°C.

For example, at steady-state operation of Tc = 55°C, IF = 1700mA, the relative luminous ux ratio is 120% in the chart below. A CMA2550

LED that measures 6850lm during binning will deliver 8220lm (6850 * 1.2) at steady-state operation of Tc = 55°C, IF = 1700mA.

TYPICAL SPATIAL DISTRIBUTION

0%

20%

40%

60%

80%

100%

120%

140%

160%

180%

200%

220%

700 900 1100 1300 1500 1700 1900 2100 2300 2500 2700 2900 3100 3300

Relative Luminous Flux

Current (mA)

Tc = 25 °C

Tc = 55 °C

Tc = 85 °C

Tc = 105 °C

Far Field

0%

20%

40%

60%

80%

100%

-90 -70 -50 -30 -10 10 30 50 70 90

Relative Luminous Intensity

Angle (º)

eTone™ is a trademark of Cree, Inc. UL® and the UR logo are registered trademarks of UL LLC.

13

XLAMP® CMA2550 LED

PERFORMANCE GROUPS - CHROMATICITY (TJ = 85°C)

XLamp CMA2550 LEDs are tested for chromaticity and placed into one of the regions dened by the following bounding coordinates.

EasyWhite Color Temperatures – 2-Step

Code CCT x y

40H 4000 K

0.3777 0.3739

0.3797 0.3816

0.3861 0.3855

0.3838 0.3777

35H 3500 K

0.4022 0.3858

0.4053 0.3942

0.4125 0.3977

0.4091 0.3891

30H 3000 K

0.4287 0.3975

0.4328 0.4064

0.4390 0.4086

0.4347 0.3996

27H 2700 K

0.4524 0.4048

0.4574 0.4140

0.4633 0.4154

0.4581 0.4062

EasyWhite Color Temperatures – 3-Step Ellipse

Bin Code CCT Center Point Major Axis Minor Axis Rotation Angle

(°)

x y a b

57G 5700K 0.3287 0.3417 0.00738 0.00360 72.0

50G 5000K 0.3447 0.3553 0.00840 0.00312 65.0

40G 4000K 0.3818 0.3797 0.00939 0.00402 53.7

35G 3500K 0.4073 0.3917 0.00927 0.00414 54.0

30G 3000K 0.4338 0.4030 0.00834 0.00408 53.2

27G 2700K 0.4577 0.4099 0.00834 0.00420 48.5

22G 2200K 0.5066 0.4158 0.00980 0.00480 45.5

EasyWhite Color Temperatures – 5-Step Ellipse

Bin Code CCT Center Point Major Axis Minor Axis Rotation Angle

(°)

x y a b

65E 6500K 0.3123 0.3282 0.01110 0.00550 61.0

57E 5700K 0.3287 0.3417 0.01230 0.00600 72.0

50E 5000K 0.3447 0.3553 0.01400 0.00520 65.0

40E 4000K 0.3818 0.3797 0.01565 0.00670 53.7

30E 3000K 0.4338 0.4030 0.01390 0.00680 53.2

eTone™ is a trademark of Cree, Inc. UL® and the UR logo are registered trademarks of UL LLC.

14

XLAMP® CMA2550 LED

PREMIUM COLOR PERFORMANCE GROUPS - CHROMATICITY (TJ = 85°C)

XLamp CMA2550 LEDs are tested for chromaticity and placed into one of the regions dened by the following bounding coordinates.

Fidelity

EasyWhite Color Temperatures – 2-Step

Code CCT x y

L5A 4000K

0.3764 0.3711

0.3784 0.3787

0.3847 0.3826

0.3825 0.3748

35H 3500K

0.4022 0.3858

0.4053 0.3942

0.4125 0.3977

0.4091 0.3891

30H 3000K

0.4287 0.3975

0.4328 0.4064

0.4390 0.4086

0.4347 0.3996

27H 2700K

0.4524 0.4048

0.4574 0.4140

0.4633 0.4154

0.4581 0.4062

Specialty

EasyWhite Color Temperatures – 2-Step

Code CCT x y

L7B 3000K

0.4263 0.3848

0.4296 0.3916

0.4361 0.3938

0.4326 0.3868

L7C 3000K

0.4192 0.3754

0.4224 0.3823

0.4291 0.3847

0.4257 0.3777

EasyWhite Color Temperatures – 3-Step Ellipse

Bin Code CCT Center Point Major Axis Minor Axis Rotation Angle

(°)

x y a b

31Q 3100K 0.4236 0.3888 0.00848 0.00455 50.3

30Q 3000K 0.4305 0.3935 0.00834 0.00408 53.2

30U 3000K 0.4274 0.3837 0.00834 0.00408 53.2

eTone™ is a trademark of Cree, Inc. UL® and the UR logo are registered trademarks of UL LLC.

15

XLAMP® CMA2550 LED

CREE’S EASYWHITE® BINS PLOTTED ON THE 1931 CIE COLOR SPACE (TJ = 85°C)

2700 K

3000 K

3500 K

4000 K

4500 K

5000 K

5700 K

6500 K

7000K

2450 K 2200 K

0.31

0.32

0.33

0.34

0.35

0.36

0.37

0.38

0.39

0.40

0.41

0.42

0.43

0.44

0.45

0.29

0.30

0.31

0.32

0.33

0.34

0.35

0.36

0.37

0.38

0.39

0.40

0.41

0.42

0.43

0.44

0.45

0.46

0.47

0.48

0.49

0.50

0.51

0.52

0.53

0.54

CCy

CCx

ANSI C78.377 Quadrangle

EasyWhite 5-step

EasyWhite 3-step

EasyWhite 2-step

eTone™ is a trademark of Cree, Inc. UL® and the UR logo are registered trademarks of UL LLC.

16

XLAMP® CMA2550 LED

CREE PREMIUM COLOR BINS PLOTTED ON THE 1931 CIE COLOR SPACE (TJ = 85°C)

Fidelity (2-step)

2700K

3000K

3500K

4000K

4500K

L5A

0.34

0.35

0.36

0.37

0.38

0.39

0.40

0.41

0.42

0.43

0.44

0.35

0.36

0.37

0.38

0.39

0.40

0.41

0.42

0.43

0.44

0.45

0.46

0.47

0.48

CCy

CCx

ANSI C78.377 Quadrangle

35H

30H

27H

eTone™ is a trademark of Cree, Inc. UL® and the UR logo are registered trademarks of UL LLC.

17

XLAMP® CMA2550 LED

CREE PREMIUM COLOR BINS PLOTTED ON THE 1931 CIE COLOR SPACE (TJ = 85°C) - CONTINUED

Speciality (2-step)

Speciality (3-step)

3000 K

3500 K

L7B

L7C

0.37

0.38

0.39

0.40

0.41

0.42

0.43

0.44

0.41

0.42

0.43

0.44

0.45

0.46

CCy

CCx

ANSI C78.377 Quadrangle

3000K

3500K

30Q

30U

31Q

0.37

0.38

0.39

0.40

0.41

0.42

0.43

0.44

0.41

0.42

0.43

0.44

0.45

0.46

CCy

CCx

ANSI C78.377 Quadrangle

eTone™ is a trademark of Cree, Inc. UL® and the UR logo are registered trademarks of UL LLC.

18

XLAMP® CMA2550 LED

BIN AND ORDER CODE FORMATS

Bin codes and order codes are congured as follows:

Order Code Bin Code

SSSSSCC-HHHH-HHEGGRNNNNN

Series = CMA25

Internal code

Version

0 = Standard

P = eTone

CRI Specification

B = 70 CRI minimum

H = 80 CRI minimum

U = 90 CRI minimum

Z = 95 CRI minimum

Kit code

Vf class

N0 = 36-V class

Performance class

SSSSSCC-WWW

-FF-GGR-EAAAA

Series = CMA25

Chromaticity bin

Vf class

N0 = 36-V class

Version

0 = Standard

P = eTone

Internal code

CRI Specification

B = 70 CRI minimum

H = 80 CRI minimum

U = 90 CRI minimum

Z = 95 CRI minimum

Flux bin

0A = Not binned into flux bins

Performance class

eTone™ is a trademark of Cree, Inc. UL® and the UR logo are registered trademarks of UL LLC.

19

XLAMP® CMA2550 LED

MECHANICAL DIMENSIONS

Dimensions are in mm.

Tolerances unless otherwise specied: ±.13

x° ± 1°

Meaning of LED marking

M2550N = 36-V CMA2550

M2550Ne = 36-V CMA2550 eTone

X1 X2 X3 X4 X5

X1 CCT

1 = 6500K

…

8 = 2700K

X2

M = EasyWhite or

Fidelity LED on the

black-body line

Q = Specialty LED below

the black-body line

U = Specialty LED below

the black-body line

X3 X4 Flux bin

0A = Not binned into ux

bins

X5 CRI

B = 70 CRI min

H = 80 CRI min

U = 90 CRI min

Z = 95 CRI min

Tc measurement point: either the anode or cathode solder pad

eTone™ is a trademark of Cree, Inc. UL® and the UR logo are registered trademarks of UL LLC.

20

XLAMP® CMA2550 LED

THERMAL DESIGN

The CMA family of LED arrays can include over a hundred different LED die inside one package, and thus over a hundred different junction

temperatures (TJ). Cree has intentionally removed junction-temperature-based operating limits and replaced the commonplace maximum

TJ calculations with maximum ratings based on forward current (IF) and case temperature (Tc). No additional calculations are required to

ensure that the CMA LED is being operated within its designed limits. LES temperature measurement provides additional verication of

good thermal design. Please refer to page 3 for the Operating Limit specication.

There is no need to calculate for TJ inside the package, as the thermal management design process, specically from solder point (TSP) to

ambient (Ta), remains identical to any other LED component. For more information on thermal management of Cree XLamp LEDs, please

refer to the Thermal Management application note. For CMA soldering recommendations and information on thermal interface materials

(TIM), LES temperature measurement, and connection methods, please refer to the Cree XLamp CM Family LEDs soldering and handling

document.

To keep the CMA2550 LED at or below the maximum rated Tc, the case to ambient temperature

thermal resistance (R_c-a) must be at or below the maximum R_c-a value shown on the following

graph, depending on the operating environment. The y-axis in the graph is a base 10 logarithmic

scale.

As the gure at right shows, the R_c-a value is the sum of the thermal resistance of the TIM (R_tim)

plus the thermal resistance of the heat sink (R_hs).

R_j-c

Tc

R_tim

R_hs

Ta

R_j-c

Tc

R_c-a

Ta

CMA2550

0.01

0.10

1.00

10.00

700 900 1100 1300 1500 1700 1900 2100 2300 2500 2700 2900 3100 3300

Maximum R_c-a

Current (mA)

Ta = 25 °C

Ta = 55 °C

Ta = 85 °C

Ta = 105 °C

eTone™ is a trademark of Cree, Inc. UL® and the UR logo are registered trademarks of UL LLC.

21

XLAMP® CMA2550 LED

NOTES

Measurements

The luminous ux, radiant power, chromaticity, forward voltage and CRI measurements in this document are binning specications only

and solely represent product measurements as of the date of shipment. These measurements will change over time based on a number

of factors that are not within Cree’s control and are not intended or provided as operational specications for the products. Calculated

values are provided for informational purposes only and are not intended or provided as specications.

Pre-Release Qualication Testing

Please read the LED Reliability Overview for details of the qualication process Cree applies to ensure long-term reliability for XLamp

LEDs and details of Cree’s pre-release qualication testing for XLamp LEDs. Cree did not perform Room Temperature Operating Life

(RTOL) testing on the CMA2550 LED.

Lumen Maintenance

Cree now uses standardized IES LM-80-08 and TM-21-11 methods for collecting long-term data and extrapolating LED lumen maintenance.

For information on the specic LM-80 data sets available for this LED, refer to the public LM-80 results document.

Please read the Long-Term Lumen Maintenance application note for more details on Cree’s lumen maintenance testing and forecasting.

Please read the Thermal Management application note for details on how thermal design, ambient temperature, and drive current affect

the LED junction temperature.

RoHS Compliance

The levels of RoHS restricted materials in this product are below the maximum concentration values (also referred to as the threshold

limits) permitted for such substances, or are used in an exempted application, in accordance with EU Directive 2011/65/EC (RoHS2), as

implemented January 2, 2013. RoHS Declarations for this product can be obtained from your Cree representative or from the Product

Ecology section of the Cree website.

REACh Compliance

REACh substances of very high concern (SVHCs) information is available for this product. Since the European Chemical Agency (ECHA)

has published notice of their intent to frequently revise the SVHC listing for the foreseeable future, please contact a Cree representative

to insure you get the most up-to-date REACh Declaration. REACh banned substance information (REACh Article 67) is also available upon

request.

UL® Recognized Component

This product meets the requirements to be considered a UL Recognized Component with Level 4 enclosure consideration. The LED

package or a portion thereof has been investigated as a re and electrical enclosure per ANSI/UL 8750.

Vision Advisory

WARNING: Do not look at an exposed lamp in operation. Eye injury can result. For more information about LEDs and eye safety, please

refer to the LED Eye Safety application note.

eTone™ is a trademark of Cree, Inc. UL® and the UR logo are registered trademarks of UL LLC.

22

XLAMP® CMA2550 LED

PACKAGING

Cree CMA2550 LEDs are packaged in trays of 20. Five trays are sealed in an anti-static bag and placed inside a carton, for a total of 100

LEDs per carton. Each carton contains 100 LEDs from the same performance bin.

Dimensions are in inches.

Tolerances: ±.13

x° ±1°

SIZE

TITLE

OF

REV.

SHEET

C

DRAWING NO.

DATE

CHECK

FINAL PROTECTIVE FINISH

MATERIAL

APPROVED

DRAWN BY

THIRD ANGLE PROJECTION

.X ± 0.1

X° ± 2 °

.XXX ± .010

.XX ± .03

.X ± .06

FOR SHEET METAL PARTS ONLY

.XX ± .05

.XXX ± .005

X° ± 1 °

UNLESS OTHERWISE SPECIFIED

DIMENSIONS ARE IN

MILLIMETERS & BEFORE FINISH.

TOLERANCE UNLESS SPECIFIED:

SCALE

A

B

C

D

123456

6 5 4 3 2 1

A

B

C

D

Phone (919) 361-4770

Fax (919) 313-5303

4600 Silicon Drive

Durham, N.C 27703

UNAUTHORIZED PERSON WITHOUT

THE WRITTEN CONSENT

MAY NOT BE COPIED, REPRODUCED OR DISCLOSED TO ANY

CONFIDENTIAL INFORMATION OF CREE, INC. THIS PLOT

CONTAINED WITHIN ARE THE PROPRIETARY AND

CREE CONFIDENTIAL. THIS PLOT AND THE INFORMATION

OF CREE INC.

NOTICE

7.625

7.125

R.375

1.188

1.188 .38

1/10.500

A

CXA25XX_DATASHEET_BAG2013

CXA25XX_DATASHEET

BAG

PATENT LABEL IS LOCATED

ON UNDERSIDE OF COVER

LABEL WITH CREE BIN

CODE, QUANTITY, LOT #

LABEL WITH CREE BIN

CODE, QUANTITY, LOT #

LABEL WITH CREE BIN

CODE, QUANTITY, LOT #

PATENT LABEL IS LOCATED

ON UNDERSIDE OF CARTON

LABEL WITH CREE BIN

CODE, QUANTITY, LOT #

SIZE

TITLE

OF

REV.

SHEET

C

DRAWING NO.

DATE

CHECK

FINAL PROTECTIVE FINISH

MATERIAL

APPROVED

DRAWN BY

THIRD ANGLE PROJECTION

.X ± 0.1

X° ± 2 °

.XXX ± .010

.XX ± .03

.X ± .06

FOR SHEET METAL PARTS ONLY

.XX ± .05

.XXX ± .005

X° ± 1 °

UNLESS OTHERWISE SPECIFIED

DIMENSIONS ARE IN

MILLIMETERS & BEFORE FINISH.

TOLERANCE UNLESS SPECIFIED:

SCALE

A

B

C

D

123456

6 5 4 3 2 1

A

B

C

D

Phone (919) 361-4770

Fax (919) 313-5303

4600 Silicon Drive

Durham, N.C 27703

UNAUTHORIZED PERSON WITHOUT

THE WRITTEN CONSENT

MAY NOT BE COPIED, REPRODUCED OR DISCLOSED TO ANY

CONFIDENTIAL INFORMATION OF CREE, INC. THIS PLOT

CONTAINED WITHIN ARE THE PROPRIETARY AND

CREE CONFIDENTIAL. THIS PLOT AND THE INFORMATION

OF CREE INC.

NOTICE

5.875

.38

R.375

.875

1/10.500

A

CXA15XX_DATASHEET_BAG2013

CXA15XX_DATASHEET

BAG

LABEL WITH CREE BIN

CODE, QUANTITY, LOT #

LABEL WITH CREE BIN

CODE, QUANTITY, LOT #

LABEL WITH CREE BIN

CODE, QUANTITY, LOT #

PATENT LABEL IS LOCATED

ON UNDERSIDE OF COVER

LABEL WITH CREE BIN CODE,

QUANTITY, LOT # 1.188

1.188

R.375

7.125

7.625