CXB1816-0000-00PN0U0A30G - 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-DS119 REV 6A

Cree® XLamp® CXB1816 LED

PRODUCT DESCRIPTION

XLamp® CXA2 LED Arrays lead the

industry in efcacy 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

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 efcacy as today’s

standard 80 CRI LEDs.

FEATURES

• 12‑mm optical source

• Mechanical and optical design

consistent with other CXA18 and

CXB18 LEDs with a 12‑mm optical

source

• Cree EasyWhite® 2‑, 3‑ and 5‑step

binning

• Premium Color 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 ux 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 .....................................7

Relative Spectral Power Distribution ‑

Standard LEDs .............................................8

Relative Spectral Power Distribution ‑

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

Relative Spectral Power Distribution ‑

eTone™ LEDs ...............................................9

Electrical Characteristics ............................9

Relative Luminous Flux ............................ 10

Typical Spatial Distribution ...................... 11

Performance Groups ‑ Brightness .......... 11

EasyWhite® Performance Groups ‑

Chromaticity ............................................. 12

Premium Color Performance Groups ‑

Chromaticity ............................................. 13

Cree EasyWhite® Bins Plotted on the

1931 CIE Color Space .............................. 13

Cree Premium Color Bins Plotted on the

1931 CIE Color Space .............................. 14

Bin and Order Code Formats ................... 15

Mechanical Dimensions .......................... 16

Thermal Design ........................................ 17

Notes ........................................................ 18

Packaging ................................................. 19

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

2

XLamp® CXB1816 LED

CHARACTERISTICS

Characteristics Unit Minimum Typical Maximum

Viewing angle (FWHM) degrees 115

ESD withstand voltage (HBM per Mil‑Std‑883D) V8000

DC forward current ‑ Standard mA 900*

DC forward current ‑ eTone mA 900*

Reverse current mA 0.1

Forward voltage (450mA, 85°C) V35 38

* 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® CXB1816 LED

OPERATING LIMITS

The maximum current rating of the CXB1816 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 16 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 17 for more

information on LES temperature measurement.

CXB1816 Standard

0

100

200

300

400

500

600

700

800

900

1000

025 50 75 100 125 150

If (mA)

Case Temperature (°C)

Standard LEDs

95 °C, 900 mA

125 °C,

408 mA

CXB1816 eTone

0

100

200

300

400

500

600

700

800

900

1000

025 50 75 100 125 150

If (mA)

Case Temperature (°C)

eTone LEDs

85 °C, 900 mA

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

4

XLamp® CXB1816 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).

• Cree XLamp CXB1816 LED order codes specify only a minimum ux bin and not a maximum. Cree may ship reels in ux bins higher than the minimum

specied by the order code without advance notice. Shipments will always adhere to the chromaticity bin restrictions specied 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.

FLUX CHARACTERISTICS, ORDER CODES & BINS - STANDARD LEDS (IFmA, TJ

The following table provides order codes for XLamp CXB1816 LEDs. For a complete description of the order code nomenclature, please

see the Bin and Order Code Formats section (page 15).

Nominal

CCT

CRI* Minimum Luminous Flux 2-Step 3-Step 

Min Typ Group 





 Group Order Code Group Order Code Group Order Code

6500K

70 ---

Q2 2100 2311

65E

CXB1816‑0000‑

000N0BQ265E

Q4 2260 2487 CXB1816‑0000‑

000N0BQ465E

R2 2420 2663 CXB1816‑0000‑

000N0BR265E

80 ---

Q2 2100 2311

65E

CXB1816‑0000‑

000N0HQ265E

Q4 2260 2487 CXB1816‑0000‑

000N0HQ465E

R2 2420 2663 CXB1816‑0000‑

000N0HR265E

5700K

70 ---

Q2 2100 2311

57E

CXB1816‑0000‑

000N0BQ257E

Q4 2260 2487 CXB1816‑0000‑

000N0BQ457E

R2 2420 2663 CXB1816‑0000‑

000N0BR257E

80 ---

Q2 2100 2311

57E

CXB1816‑0000‑

000N0HQ257E

Q4 2260 2487 CXB1816‑0000‑

000N0HQ457E

R2 2420 2663 CXB1816‑0000‑

000N0HR257E

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

5

XLamp® CXB1816 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).

• Cree XLamp CXB1816 LED order codes specify only a minimum ux bin and not a maximum. Cree may ship reels in ux bins higher than the minimum

specied by the order code without advance notice. Shipments will always adhere to the chromaticity bin restrictions specied 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.

Nominal

CCT

CRI* Minimum Luminous Flux 2-Step 3-Step 

Min Typ Group 





 Group Order Code Group Order Code Group Order Code

5000K

70 ---

Q2 2100 2311

50E

CXB1816‑0000‑

000N0BQ250E

Q4 2260 2487 CXB1816‑0000‑

000N0BQ450E

R2 2420 2663 CXB1816‑0000‑

000N0BR250E

80 ---

Q2 2100 2311

50G

CXB1816‑0000‑

000N0HQ250G

50E

CXB1816‑0000‑

000N0HQ250E

Q4 2260 2487 CXB1816‑0000‑

000N0HQ450G

CXB1816‑0000‑

000N0HQ450E

R2 2420 2663 CXB1816‑0000‑

000N0HR250G

90 92

P2 1830 2014

50G

CXB1816‑0000‑

000N0UP250G

P4 1965 2162 CXB1816‑0000‑

000N0UP450G

Q2 2100 2311 CXB1816‑0000‑

000N0UQ250G

4000K

70 ---

Q2 2100 2311

40E

CXB1816‑0000‑

000N0BQ240E

Q4 2260 2487 CXB1816‑0000‑

000N0BQ440E

R2 2420 2663 CXB1816‑0000‑

000N0BR240E

80 ---

P4 1965 2162

40H

CXB1816‑0000‑

000N0HP440H

40G

CXB1816‑0000‑

000N0HP440G

Q2 2100 2311 CXB1816‑0000‑

000N0HQ240H

CXB1816‑0000‑

000N0HQ240G

Q4 2260 2487 CXB1816‑0000‑

000N0HQ440H

CXB1816‑0000‑

000N0HQ440G

90 92

N4 1710 1882

40H

CXB1816‑0000‑

000N0UN440H

40G

CXB1816‑0000‑

000N0UN440G

P2 1830 2014 CXB1816‑0000‑

000N0UP240H

CXB1816‑0000‑

000N0UP240G

P4 1965 2162 CXB1816‑0000‑

000N0UP440H

CXB1816‑0000‑

000N0UP440G

Q2 2100 2311 CXB1816‑0000‑

000N0UQ240H

CXB1816‑0000‑

000N0UQ240G

FLUX CHARACTERISTICS, ORDER CODES & BINS - STANDARD LEDS (IFmA, TJ

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

6

XLamp® CXB1816 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).

• Cree XLamp CXB1816 LED order codes specify only a minimum ux bin and not a maximum. Cree may ship reels in ux bins higher than the minimum

specied by the order code without advance notice. Shipments will always adhere to the chromaticity bin restrictions specied 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.

Nominal

CCT

CRI* Minimum Luminous Flux 2-Step 3-Step 

Min Typ Group 





 Group Order Code Group Order Code Group Order Code

3500K

80 ---

P4 1965 2162

35H

CXB1816‑0000‑

000N0HP435H

35G

CXB1816‑0000‑

000N0HP435G

Q2 2100 2311 CXB1816‑0000‑

000N0HQ235H

CXB1816‑0000‑

000N0HQ235G

Q4 2260 2487 CXB1816‑0000‑

000N0HQ435H

CXB1816‑0000‑

000N0HQ435G

90 92

N4 1710 1882

35H

CXB1816‑0000‑

000N0UN435H

35G

CXB1816‑0000‑

000N0UN435G

P2 1830 2014 CXB1816‑0000‑

000N0UP235H

CXB1816‑0000‑

000N0UP235G

P4 1965 2162 CXB1816‑0000‑

000N0UP435H

CXB1816‑0000‑

000N0UP435G

3000K

80 ---

P4 1965 2162

30H

CXB1816‑0000‑

000N0HP430H 30G

CXB1816‑0000‑

000N0HP430G

Q2 2100 2311 CXB1816‑0000‑

000N0HQ230H

CXB1816‑0000‑

000N0HQ230G

90 92

N2 1590 1750

30H

CXB1816‑0000‑

000N0UN230H

30G

CXB1816‑0000‑

000N0UN230G

N4 1710 1882 CXB1816‑0000‑

000N0UN430H

CXB1816‑0000‑

000N0UN430G

P2 1830 2014 CXB1816‑0000‑

000N0UP230H

CXB1816‑0000‑

000N0UP230G

2700K

80 ---

P2 1830 2014

27H

CXB1816‑0000‑

000N0HP227H

27G

CXB1816‑0000‑

000N0HP227G

P4 1965 2162 CXB1816‑0000‑

000N0HP427H

CXB1816‑0000‑

000N0HP427G

Q2 2100 2311 CXB1816‑0000‑

000N0HQ227H

CXB1816‑0000‑

000N0HQ227G

90 92

M4 1485 1634

27H

CXB1816‑0000‑

000N0UM427H

27G

CXB1816‑0000‑

000N0UM427G

N2 1590 1750 CXB1816‑0000‑

000N0UN227H

CXB1816‑0000‑

000N0UN227G

N4 1710 1882 CXB1816‑0000‑

000N0UN427H

CXB1816‑0000‑

000N0UN427G

2200K 80 --- N2 1590 1750 22G CXB1816‑0000‑

000N0HN222G

FLUX CHARACTERISTICS, ORDER CODES & BINS - STANDARD LEDS (IFmA, TJ

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

7

XLamp® CXB1816 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).

• Cree XLamp CXB1816 LED order codes specify only a minimum ux bin and not a maximum. Cree may ship reels in ux bins higher than the minimum

specied by the order code without advance notice. Shipments will always adhere to the chromaticity bin restrictions specied 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.

FLUX CHARACTERISTICS, ORDER CODES & BINS - STANDARD LEDS, PREMIUM COLOR (IFmA, TJ

Specialty

Nominal

CCT

CRI Minimum Luminous Flux Typical

Luminous





3-Step

Min Typ Group 





 Group Order Code Group Order Code

3100K 90 92 N2 1590 1750 1923 31Q CXB1816‑0000‑000N0UN231Q

3000K 90 92

M4 1485 1634

1923 30Q 30U

CXB1816‑0000‑000N0UM430U

N2 1590 1750 CXB1816‑0000‑000N0UN230Q CXB1816‑0000‑000N0UN230U

N4 1710 1882 CXB1816‑0000‑000N0UN430Q CXB1816‑0000‑000N0UN430U

FLUX CHARACTERISTICS, ORDER CODES AND BINS - ETONE™ LEDS (IF mA, TJ 

Nominal

CCT

CRI* Minimum

Luminous



Typical

Luminous



2-Step 3-Step

Min. Typ Group Order Code Group Order Code

4000K 90 92 1808 2182 40H CXB1816‑0000‑00PN0U0A40H 40G CXB1816‑0000‑00PN0U0A40G

3500K 90 92 1827 2146 35H CXB1816‑0000‑00PN0U0A35H 35G CXB1816‑0000‑00PN0U0A35G

3000K 90 92 1867 2124 30H CXB1816‑0000‑00PN0U0A30H 30G CXB1816‑0000‑00PN0U0A30G

2700K 90 92 1739 2039 27H CXB1816‑0000‑00PN0U0A27H 27G CXB1816‑0000‑00PN0U0A27G

Specialty

Nominal

CCT

CRI Minimum

Luminous



Typical

Luminous



3-Step

Min. Typ Group Order Code Group Order Code

3100K 90 92 1847 2102 31Q CXB1816‑0000‑00PN0U0A31Q

3000K 90 92 1867 2124 30Q CXB1816‑0000‑00PN0U0A30Q 30U CXB1816‑0000‑00PN0U0A30U

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

8

XLamp® CXB1816 LED

RELATIVE SPECTRAL POWER DISTRIBUTION - STANDARD LEDS

The following graph is the result of a series of pulsed measurements at 450mA and TJ = 85°C.

RELATIVE SPECTRAL POWER DISTRIBUTION - STANDARD LEDS, PREMIUM COLOR

The following graph is the result of a series of pulsed measurements at 450mA and TJ = 85°C.

Specialty

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)

5000 K, 70 CRI

4000 K, 70 CRI

3000 K, 80 CRI

3000 K, 90 CRI

2200 K, 80 CRI

Relative Spectral Power Distribution

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

30Q, 3000 K, 90 CRI

30U, 3000 K, 90 CRI

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

9

XLamp® CXB1816 LED

RELATIVE SPECTRAL POWER DISTRIBUTION - ETONE™ LEDS

The following graph is the result of a series of pulsed measurements at 450mA and TJ = 85°C.

ELECTRICAL CHARACTERISTICS

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

EZW 90 CRI NBR (E-Tone?)

NBR data from: CMA1516_NBR_PrelimDatasheet_180911.xlsx

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)

3000 K, 90 CRI

31

32

33

34

35

36

37

38

39

100 200 300 400 500 600 700 800 900

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.

10

XLamp® CXB1816 LED

RELATIVE LUMINOUS FLUX

The relative luminous ux values provided below are the ratio of measurements of the CXB1816 LED at steady‑state operation at the given

conditions, divided by ux measured during binning, which is a pulsed measurement at 450mA at TJ = 85°C.

For example, at steady‑state operation of Tc = 25°C, IF = 500mA, the relative luminous ux ratio is 120% in the chart below. A CXB1816

LED that measures 2100lm during binning will deliver 2520lm (2100 * 1.2) at steady‑state operation of Tc = 25°C, IF = 500mA.

0%

20%

40%

60%

80%

100%

120%

140%

160%

180%

200%

100 200 300 400 500 600 700 800 900

Relative Luminous Flux

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.

11

XLamp® CXB1816 LED

TYPICAL SPATIAL DISTRIBUTION

PERFORMANCE GROUPS - BRIGHTNESS (IF mA, TJ 

XLamp CXB1816 LEDs are tested for luminous ux and placed into one of the following bins.

Group Code Minimum Luminous Flux Maximum Luminous Flux

M4 1485 1590

N2 1590 1710

N4 1710 1830

P2 1830 1965

P4 1965 2100

Q2 2100 2260

Q4 2260 2420

R2 2420 2600

R4 2600 2780

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.

12

XLamp® CXB1816 LED

EASYWHITE® PERFORMANCE GROUPS - CHROMATICITY (TJ 

XLamp CXB1816 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

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



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

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

13

XLamp® CXB1816 LED

PREMIUM COLOR PERFORMANCE GROUPS - CHROMATICITY (TJ

XLamp CXB2530 LEDs are tested for chromaticity and placed into one of the regions dened by the following bounding coordinates.

Specialty

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

CREE EASYWHITE® BINS PLOTTED ON THE 1931 CIE COLOR SPACE (TJ 

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.

14

XLamp® CXB1816 LED

CREE PREMIUM COLOR BINS PLOTTED ON THE 1931 CIE COLOR SPACE (TJ 



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.

15

XLamp® CXB1816 LED

BIN AND ORDER CODE FORMATS

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

Order Code Bin Code

SSSSSCC-HHHH-HHEGGRNNNNN

Series = CXB18

Internal code

Version

0 = Standard

P = eTone

CRI Specification

B = 70 CRI minimum

H = 80 CRI minimum

U = 90 CRI minimum

Kit code

Vf class

N0 = 36-V class

Performance class

SSSSSCC-WWW-FF-GGR-EAAAA

Series = CXB18

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

Flux bin

Performance class

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

16

XLamp® CXB1816 LED

MECHANICAL DIMENSIONS

Dimensions are in mm.

Tolerances unless otherwise

specied: ±.13

x° ±1°

Meaning of LED marking

B1816N = 36‑V CXB1816

B1816Ne = 36‑V CXB1816 eTone

B1816N

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

17

XLamp® CXB1816 LED

THERMAL DESIGN

The CXB 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 CXB 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cations.

There is no need to calculate for TJ inside the package, as the thermal management design process, specically from 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 CXB soldering recommendations and more information on thermal interface materials

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

document. The CX Family LED Design Guide provides basic information on the requirements to use Cree XLamp CXB LEDs successfully

in luminaire designs.

To keep the CXB1816 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

CXB1816

0.01

0.10

1.00

10.00

100.00

250 380 510 640 770 900

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.

18

XLamp® CXB1816 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.



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.

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.

19

XLamp® CXB1816 LED

PACKAGING

Cree CXB1816 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

5.875

.38

R.375

.875

1/10.500

A

CXA15XX_DATASHEET_BAG2013

CXA15XX_DATASHEET

LABEL WITH CREE

BIN CODE, QTY, LOT#

LABEL WITH CREE

BIN CODE, QTY, LOT#

BAG

LABEL WITH CREE

BIN CODE, QTY, LOT#

PATENT LABEL

IS LOCATED ON UNDERSIDE OF

CARTON

UNLESS OTHERWISE NOTED ALL

TOLERANCES ARE AS FOLLOWS:

PART DRAWING

DWG.TITLE

SIZE

B

DO NOT

SCALE DWG.

FRACT ±1/64 X.X" ±.030 X.0mm ±.75mm

ANGLES ±0°-30' X.XX" ±.015 X.Xmm ±.30mm

DRAFT ±1° X.XXX" ±.005 X.XXmm ±.10mm

THIS DRAWING CONTAINS PROPRIETARY DESIGN INFORMATION

AND REMAINS ALONG WITH THE PRODUCT OR PRODUCTS

REPRESENTED HEREIN THE PROPERTY OF TEK PAK, INCORPORATED.

THIS DOCUMENT AND THE INFORMATION IT CONTAINS

MAY NOT BE COPIED, TRANSMITTED, OR USED BY ANY

THIRD PARTY WITHOUT THE EXPRESS WRITTEN APPROVAL

OF TEK PAK, INCORPORATED.

.75

7.875

7.125

R.375

1.125

.75

.38 .19

SCALE: 0.750

DWG. NO.

022489-00

SHEET 2 OF 2

DATE:

4-3-13

DR. BY:

KJS

CHK. BY:

REV DESC. DATE BY CHK.

SECTION C-C

.38

UNLESS OTHERWISE NOTED ALL

TOLERANCES ARE AS FOLLOWS:

PART DRAWING

DWG.TITLE

SIZE

B

DO NOT

SCALE DWG.

FRACT ±1/64 X.X" ±.030 X.0mm ±.75mm

ANGLES ±0°-30' X.XX" ±.015 X.Xmm ±.30mm

DRAFT ±1° X.XXX" ±.005 X.XXmm ±.10mm

THIS DRAWING CONTAINS PROPRIETARY DESIGN INFORMATION

AND REMAINS ALONG WITH THE PRODUCT OR PRODUCTS

REPRESENTED HEREIN THE PROPERTY OF TEK PAK, INCORPORATED.

THIS DOCUMENT AND THE INFORMATION IT CONTAINS

MAY NOT BE COPIED, TRANSMITTED, OR USED BY ANY

THIRD PARTY WITHOUT THE EXPRESS WRITTEN APPROVAL

OF TEK PAK, INCORPORATED.

.75

7.875

7.125

R.375

1.125

.75

.38 .19

SCALE: 0.750

DWG. NO.

022489-00

SHEET 2 OF 2

DATE:

4-3-13

DR. BY:

KJS

CHK. BY:

REV DESC. DATE BY CHK.

SECTION C-C

.38

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