MLBAWT-A1-0000-000VG7 - CREE

CLD DS-39 REV0

PRODUCT FAMILY DATA SHEET

and XLamp are registered trademarks of Cree, Inc.

WWW. CREE.COM/XLAMP

Cree, Inc.

4600 Silicon Drive

Durham, NC 27703

USA Tel: +1.919.313.5300

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, uo-

rescent retrots and retail-display

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 oor life at

≤ 30°C/85% RH

TABLE OF CONTENTS

Flux Characteristics (TJ = 25°C)...... 2

Characteristics.......................... 2

Relative Spectral Power

Distribution.......................... 3

Relative Flux vs. Junction

Temperature (IF = 80 mA)........ 3

Electrical Characteristics

(TJ = 25°C)..........................4

Relative Flux vs. Current

TJ = 25°C).......................... 4

Thermal Design.........................5

Typical Spatial Distribution............ 5

Reow Soldering Characteristics...... 6

Notes.................................... 7

Mechanical Dimensions (TA = 25°C).. 8

Tape and Reel........................... 9

Packaging..............................10

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XLAMP ML-B LEDS

FLUX CHARACTERISTICS (TJ = 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.

Color

CCT Range

Base Order Codes

Min Luminous Flux

(lm) @ 80 mA Order Code

Min. Max. Group Flux (lm)

Cool White 5,000 K 8,300 K J0 23.5 MLBAWT-A1-0000-000W51

Warm White

3,700 K 4,300 K

H0 18.1 MLBAWT-A1-0000-000VE5

J0 23.5 MLBAWT-A1-0000-000WE5

2,800 K 3,200 K

H0 18.1 MLBAWT-A1-0000-000VE7

J0 23.5 MLBAWT-A1-0000-000WE7

Notes:

• Cree maintains a tolerance of +/- 7% on ux 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 Unit Minimum Typical Maximum

Thermal resistance, junction to solder point °C/W 25

Viewing angle (FWHM) degrees 120

Temperature coefcient of voltage mV/°C -3.5

ESD classication (HBM per Mil-Std-883D) Class 2

DC forward current mA 80 175

Reverse voltage V 5

Forward voltage (@ 80 mA) V 3.3 3.5

LED junction temperature °C 150

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XLAMP ML-B LEDS

RELATIVE SPECTRAL POWER DISTRIBUTION

RELATIVE FLUX VS. JUNCTION TEMPERATURE (IF = 80 MA)

100

400 450 500 550 600 650 700 750

Relative Radiant Power (%)

Wavelength (nm)

5000K - 8300K CCT

3500K - 5000K CCT

2600K - 3500K CCT

10%

20%

30%

40%

50%

60%

70%

80%

90%

100%

25 50 75 100 125 150

Relative Luminous Flux

Junction Temperature (ºC)

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XLAMP ML-B LEDS

ELECTRICAL CHARACTERISTICS (TJ = 25°C)

RELATIVE FLUX VS. CURRENT (TJ = 25°C)

100

120

140

160

180

2.50 2.75 3.00 3.25 3.50 3.75 4.00

Forward Current (mA)

Forward Voltage (V)

20%

40%

60%

80%

100%

120%

140%

160%

180%

200%

0 25 50 75 100 125 150 175

Relative Luminous Flux (%)

Forward Current (mA)

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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.

TYPICAL SPATIAL DISTRIBUTION

100

120

140

160

180

200

0 25 50 75 100 125 150

Maximum Current (mA)

Ambient Temperature (ºC)

Rj-a = 30°C/W

Rj-a = 40°C/W

Rj-a = 50°C/W

Rj-a = 60°C/W

100

120

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

Relative Luminous Intensity (%)

Angle (º)

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XLAMP ML-B LEDS

REFLOW SOLDERING CHARACTERISTICS

In testing, Cree has found XLamp ML-B LEDs to be compatible with JEDEC J-STD-020C, using the parameters listed

below. As a general guideline, Cree recommends that users follow the recommended soldering prole provided by the

manufacturer of solder paste used.

Note that this general guideline may not apply to all PCB designs and congurations of reow soldering equipment.

Prole Feature Lead-Based Solder Lead-Free Solder

Average Ramp-Up Rate (Tsmax to Tp) 3°C/second max. 3°C/second max.

Preheat: Temperature Min (Tsmin) 100°C 150°C

Preheat: Temperature Max (Tsmax) 150°C 200°C

Preheat: Time (tsmin to tsmax) 60-120 seconds 60-180 seconds

Time Maintained Above: Temperature (TL) 183°C 217°C

Time Maintained Above: Time (tL) 60-150 seconds 60-150 seconds

Peak/Classication Temperature (Tp) 215°C 260°C

Time Within 5°C of Actual Peak Temperature (tp) 10-30 seconds 20-40 seconds

Ramp-Down Rate 6°C/second max. 6°C/second max

Time 25°C to Peak Temperature 6 minutes max. 8 minutes max.

Note: All temperatures refer to topside of the package, measured on the package body surface.

Note: While the high reow temperatures (above) have been approved, Cree’s best practice guideline for reow is to use

as low a temperature as possible during the reow soldering process for these LEDs.

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XLAMP ML-B LEDS

NOTES

Lumen Maintenance Projections

Cree currently recommends a maximum drive current of 80 mA for XLamp ML-B white in designs seeking the ENERGY

STAR* 35,000 hour lifetime rating (≥ 94.1% luminous ux @ 6000 hours) or 25,000-hour lifetime rating (≥ 91.8%

luminous ux @ 6000 hours).

Please read the XLamp Long-Term Lumen Maintenance application note for more details on Cree’s lumen maintenance

testing and forecasting. Please read the XLamp Thermal Management application note for details on how thermal design,

ambient temperature, and drive current affect the LED junction temperature.

* These lifetime ratings are based on the current ENERGY STAR Solid State Lighting Luminaires V1.1 (December 12,

2008) and ENERGY STAR Integral LED Lamps V1.0 (December 3, 2009) lumen maintenance criteria.

Moisture Sensitivity

In testing, Cree has found XLamp ML-B LEDs to have unlimited oor life in conditions ≤30ºC / 85% relative humidity

(RH). Moisture testing included a 168 hour soak at 85ºC / 85% RH followed by 3 reow cycles, with visual and electrical

inspections at each stage.

RoHS Compliance

The levels of environmentally sensitive, persistent biologically toxic (PBT), persistent organic pollutants (POP), or other-

wise 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 2002/95/

EC on the restriction of the use of certain hazardous substances in electrical and electronic equipment (RoHS), as

amended through April 21, 2006.

Vision Advisory Claim

Users should be cautioned not to stare at the light of this LED product. The bright light can damage the eye.

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XLAMP ML-B LEDS

MECHANICAL DIMENSIONS (TA = 25°C)

All measurements are ±.13 mm unless otherwise indicated.

Recommended FR4 Solder Pad

MX3535 Pad Layout

Top View

Bottom View Side View

Top View

Recommended MCPCB Solder Pad Alternative Solder Pad

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XLAMP ML-B LEDS

TAPE AND REEL

All dimensions in mm.

Loaded Pockets

(1,000 Lamps)

Leader

400mm (min) of

empty pockets with

at least 100mm

sealed by tape

(50 empty pockets min.)

Trailer

160mm (min) of

empty pockets

sealed with tape

(20 pockets min.)

START

END

Cathode Side

Anode Side

(denoted by + and circle)

160.0

2.5

±.1

SECTION A-A

SCALE 2 : 1

1.5

±.1

8.0

±.1

4.0

±.1

1.75

±.10

12.0 .0

DETAIL B

SCALE 2 : 1

Cover Tape

Pocket Tape

User Feed Direction

START

END

User Feed Direction

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XLAMP ML-B LEDS

CREE Bin Code

& Barcode Label

Vacuum-Sealed

Moisture Barrier Bag

Label with Customer

P/N, Qty, Lot #, PO #

Label with Cree Bin

Code, Qty, Lot #

Label with Cree Bin

Code, Qty, Lot #

Vacuum-Sealed

Moisture Barrier Bag

Patent Label

Label with Customer Order

Code, Qty, Reel ID, PO #

PACKAGING

All dimensions in mm.