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SOLDERING & HANDLING
Cree LED / 4400 Silicon Drive / Durham, NC 27703 USA / +1.919.313.5330 / www.cree-led.com
Printed circuit boards (PCBs) should be prepared and/or cleaned according to the manufacturer’s specifications before placing or
soldering XLamp MT-G2 or MK-R LEDs onto the PCB. The diagrams below show the recommended PCB solder pad layout for XLamp
MT-G2 LEDs.
All measurements are ±.13 mm unless otherwise indicated.
The diagrams below show the recommended PCB solder pad layout for XLamp MK-R LEDs.
All measurements are ±.13 mm unless otherwise indicated.
SIZE
TITLE
OF
REV.
SHEETC
DRAWING NO.
DATE
DATE
DATE
CHECK
FINAL PROTECTIVE FINISH
MATERIAL
APPROVED
DRAWN BY
SCALE
A
B
C
D
123456
6 5 4 3 2 1
A
B
C
D
Phone (919) 313-5300Fax (919) 313-5558
4600 Silicon DriveDurham, N.C 27703
UNAUTHORIZED PERSON WITHOUT THE WRITTEN CONSENTMAY NOT BE COPIED, REPRODUCED OR DISCLOSED TO ANY CONFIDENTIAL INFORMATION OF CREE, INC. THIS PLOT CONTAINED WITHIN ARE THE PROPRIETARY ANDCREE CONFIDENTIAL. THIS PLOT AND THE INFORMATION
OF CREE INC.
NOTICE
X° ± .5°.XXX ± .25.XX ± .75.X ± 1.5
FOR SHEET METAL PARTS ONLY
.XX ± .25
.XXX ± .125X° ± .5°
UNLESS OTHERWISE SPECIFIEDDIMENSIONS ARE IN
MILLIMETERS AND AFTER FINISH.TOLERANCE UNLESS SPECIFIED:
SURFACE FINISH: 1.6
8.90
8.90
6.00
.95.95
.50.50
9.11
9.11
R4.10
.65
4.85±.25
8.90REF.
8.90REF.
.95.50
6.00
8.90
8.90
8.90
8.90
.30
.95 .95
1.35 .25
.58
1.35
1.23
.25
1/19.000B2610-00025
MT-G2 OUTLINE
5/14/12D. CRONIN
REVISONSREV DESCRIPTION BY DATE APP'D A INITIAL RELEASE DC 5/14/12B ADDED ALTERNATE VIEW/UPDATED STENCILDC 8/19/15
RECOMMENDED PC BOARD SOLDER PAD RECOMMENDED STENCIL PATTERN(HATCHED AREA IS OPENING)
ALL DIMENSIONS ARE ± .13MM UNLESS OTHERWISE NOTED
PRIMARY
ALTERNATIVE
8.90REF.
8.90REF.
SIZE
TITLE
OF
REV.
SHEETC
DRAWING NO.
DATE
DATE
DATE
CHECK
FINAL PROTECTIVE FINISH
MATERIAL
APPROVED
DRAWN BY
SCALE
A
B
C
D
123456
6 5 4 3 2 1
A
B
C
D
Phone (919) 313-5300Fax (919) 313-5558
4600 Silicon DriveDurham, N.C 27703
UNAUTHORIZED PERSON WITHOUT THE WRITTEN CONSENTMAY NOT BE COPIED, REPRODUCED OR DISCLOSED TO ANY CONFIDENTIAL INFORMATION OF CREE, INC. THIS PLOT CONTAINED WITHIN ARE THE PROPRIETARY ANDCREE CONFIDENTIAL. THIS PLOT AND THE INFORMATION
OF CREE INC.
NOTICE
X° ± .5°.XXX ± .25.XX ± .75.X ± 1.5
FOR SHEET METAL PARTS ONLY
.XX ± .25
.XXX ± .125X° ± .5°
UNLESS OTHERWISE SPECIFIEDDIMENSIONS ARE IN
MILLIMETERS AND AFTER FINISH.TOLERANCE UNLESS SPECIFIED:
SURFACE FINISH: 1.6
8.90
8.90
6.00
.95.95
.50.50
9.11
9.11
R4.10
.65
4.85±.25
8.90REF.
8.90REF.
.95.50
6.00
8.90
8.90
8.90
8.90
.30
.95 .95
1.35 .25
.58
1.35
1.23
.25
1/19.000B2610-00025
MT-G2 OUTLINE
5/14/12D. CRONIN
REVISONSREV DESCRIPTION BY DATE APP'D A INITIAL RELEASE DC 5/14/12B ADDED ALTERNATE VIEW/UPDATED STENCILDC 8/19/15
RECOMMENDED PC BOARD SOLDER PAD RECOMMENDED STENCIL PATTERN(HATCHED AREA IS OPENING)
ALL DIMENSIONS ARE ± .13MM UNLESS OTHERWISE NOTED
PRIMARY
ALTERNATIVE
8.90REF.
8.90REF.
Recommended PCB Solder Pad Recommended Stencil Pattern(Shaded Area Is Open)
Recommended PCB Solder Pad
SIZE
TITLE
OF
REV.
SHEET
CDRAWING NO.
DATE
DATE
DATE
CHECK
FINAL PROTECTIVE FINISH
MATERIAL
APPROVED
DRAWN BY
THIRD ANGLE PROJECTION
SCALE
A
B
C
D
123456
6 5 4 3 2 1
A
B
C
D
Phone (919) 313-5300
Fax (919) 313-5558
4600 Silicon DriveDurham, N.C 27703
UNAUTHORIZED PERSON WITHOUT THE WRITTEN CONSENTMAY NOT BE COPIED, REPRODUCED OR DISCLOSED TO ANY CONFIDENTIAL INFORMATION OF CREE, INC. THIS PLOT CONTAINED WITHIN ARE THE PROPRIETARY ANDCREE CONFIDENTIAL. THIS PLOT AND THE INFORMATION
OF CREE INC.
NOTICE
X° ± .5 °.XXX ± .25.XX ± .75.X ± 1.5
FOR SHEET METAL PARTS ONLY
.XX ± .25
.XXX ± .125X° ± .5 °
UNLESS OTHERWISE SPECIFIEDDIMENSIONS ARE IN
MILLIMETERS AND AFTER FINISH.TOLERANCE UNLESS SPECIFIED:
Solder Paste TypeCree LED strongly recommends using “no clean” solder paste with XLamp MT-G2 or MK-R LEDs so that cleaning the PCB after reflow
soldering is not required. Cree LED uses Kester® R276 solder paste internally.
Cree LED recommends the following solder paste compositions: SnAgCu (tin/silver/copper) and SnAg (tin/silver).
Solder Paste ThicknessThe choice of solder and the application method will dictate the specific amount of solder. For the most consistent results, an automated
dispensing system or a solder stencil printer is recommended. Cree LED has seen positive results using solder thickness that results in a
4-mil (102-μm) bond line, i.e., the solder joint thickness after reflow soldering.
After SolderingAfter soldering, allow XLamp MT-G2 and MK-R LEDs to return to room temperature before subsequent handling. Premature handling of
the device, especially around the lens, could result in damage to the LED.
Cree LED recommends verifying the solder process by checking the consistency of the solder bond of several trial PCBs after reflow. After
shearing selected devices from the circuit board the solder should appear completely re-flowed (no solder grains evident). The solder
areas should show minimum evidence of voids on the backside of the package and the PCB.
Cleaning PCBs After SolderingCree LED recommends using “no clean” solder paste so that flux cleaning is not necessary after reflow soldering. If PCB cleaning is
necessary, Cree LED recommends the use of isopropyl alcohol (IPA).
Do not use ultrasonic cleaning.
PCORRECT
X WRONG
NOTES ON SOLDERING XLAMP® MT-G2 AND MK-R LEDS - CONTINUED
Below are representative lists of chemicals and materials to be used or avoided in LED manufacturing activities. For a complete and current
list of recommended chemicals, conformal coatings and harmful chemicals consult Cree LED’s Chemical Compatibility Application Note.
The video at www.youtube.com/watch?v=t24bf9D_1SA illustrates the process Cree LED has developed for testing the compatibility of
chemicals and materials with LEDs. You should also consult your regional Cree LED Field Applications Engineer.
Recommended ChemicalsIn testing, Cree LED has found the following chemicals to be safe to use with XLamp MT-G2 and MK-R Family LEDs.
• Water
• Isopropyl alcohol (IPA)
Chemicals Tested as HarmfulIn general, subject to the specifics in Cree LED’s Chemical Compatibility Application Note, Cree LED has found certain chemicals to be
harmful to XLamp MT-G2 and MK-R LEDs. Cree LED recommends not using these chemicals anywhere in an LED system containing
XLamp MT-G2 and MK-R LEDs. The fumes from even small amounts of the chemicals may damage the LEDs.
• Formaldehyde or butadiene (including Ashland® PLIOBOND® adhesive)
Hermetically Sealing LuminairesFor proper LED operation and to avoid potential lumen depreciation and/or color shift, LEDs of all types must operate in an environment
that contains oxygen. Simply allowing the LEDs to ventilate to air is sufficient; no extraordinary measures are required. Hermetically
sealing LEDs in an enclosed space is not recommended.
All Cree LED carrier tapes conform to EIA-481D, Automated Component Handling Systems Standard.
All dimensions in mm.
MT-G2 Carrier Tape
MK-R Carrier Tape
SIZE
TITLE
OF
REV.
SHEET
CDRAWING NO.
DATE
DATE
DATE
CHECK
FINAL PROTECTIVE FINISH
MATERIAL
APPROVED
DRAWN BY
THIRD ANGLE PROJECTION
SCALE
A
B
C
D
123456
6 5 4 3 2 1
A
B
C
D
Phone (919) 313-5300Fax (919) 313-5558
4600 Silicon DriveDurham, N.C 27703
UNAUTHORIZED PERSON WITHOUT THE WRITTEN CONSENTMAY NOT BE COPIED, REPRODUCED OR DISCLOSED TO ANY CONFIDENTIAL INFORMATION OF CREE, INC. THIS PLOT CONTAINED WITHIN ARE THE PROPRIETARY ANDCREE CONFIDENTIAL. THIS PLOT AND THE INFORMATION
OF CREE INC.
NOTICE
X° ± .5 °.XXX ± .25.XX ± .75.X ± 1.5
FOR SHEET METAL PARTS ONLY
.XX ± .25
.XXX ± .125X° ± .5 °
UNLESS OTHERWISE SPECIFIEDDIMENSIONS ARE IN
MILLIMETERS AND AFTER FINISH.TOLERANCE UNLESS SPECIFIED:
SURFACE FINISH: 1.6
Trailer160mm (min) of
empty pocketssealed with tape
(15 pockets min.)
Loaded Pockets(500 Lamps)
12±.15.25
16+.3-.0
1.75±.10
4±.10
Leader400mm (min) of
empty pocketssealed with tape
(35 pockets min.)
9.4
1/13.000
B2402-00016
MTG LOADING SPEC
--
--
----
----
1/28/11D. CRONIN
REVISONS
REV DESCRIPTION BY DATE APP'D
A Initial Release DC 1/28/11
B Added missing sprocket holes DDS 10/17/11
END START
User Feed Direction
CATHODE SIDE
ANODE SIDE
1.5± .1
SIZE
TITLE
OF
REV.
SHEET
CDRAWING NO.
DATE
DATE
DATE
CHECK
FINAL PROTECTIVE FINISH
MATERIAL
APPROVED
DRAWN BY
THIRD ANGLE PROJECTION
SCALE
A
B
C
D
123456
6 5 4 3 2 1
A
B
C
D
Phone (919) 313-5300Fax (919) 313-5558
4600 Silicon DriveDurham, N.C 27703
UNAUTHORIZED PERSON WITHOUT THE WRITTEN CONSENTMAY NOT BE COPIED, REPRODUCED OR DISCLOSED TO ANY CONFIDENTIAL INFORMATION OF CREE, INC. THIS PLOT CONTAINED WITHIN ARE THE PROPRIETARY ANDCREE CONFIDENTIAL. THIS PLOT AND THE INFORMATION
OF CREE INC.
NOTICE
X° ± .5 °.XXX ± .25.XX ± .75.X ± 1.5
FOR SHEET METAL PARTS ONLY
.XX ± .25
.XXX ± .125X° ± .5 °
UNLESS OTHERWISE SPECIFIEDDIMENSIONS ARE IN
MILLIMETERS AND AFTER FINISH.TOLERANCE UNLESS SPECIFIED:
SURFACE FINISH: 1.6
Trailer160mm (min) of
empty pocketssealed with tape
(15 pockets min.)
Loaded Pockets(500 Lamps)
12±.15.25
16+.3-.0
1.75±.10
4±.10
Leader400mm (min) of
empty pocketssealed with tape
(35 pockets min.)
9.4
1/13.000
B2402-00016
MTG LOADING SPEC
--
--
----
----
1/28/11D. CRONIN
REVISONS
REV DESCRIPTION BY DATE APP'D
A Initial Release DC 1/28/11
B Added missing sprocket holes DDS 10/17/11
END START
User Feed Direction
CATHODE SIDE
ANODE SIDE
1.5± .1
SIZE
TITLE
OF
REV.
SHEET
CDRAWING NO.
DATE
DATE
DATE
CHECK
FINAL PROTECTIVE FINISH
MATERIAL
APPROVED
DRAWN BY
THIRD ANGLE PROJECTION
SCALE
A
B
C
D
123456
6 5 4 3 2 1
A
B
C
D
Phone (919) 313-5300Fax (919) 313-5558
4600 Silicon DriveDurham, N.C 27703
UNAUTHORIZED PERSON WITHOUT THE WRITTEN CONSENTMAY NOT BE COPIED, REPRODUCED OR DISCLOSED TO ANY CONFIDENTIAL INFORMATION OF CREE, INC. THIS PLOT CONTAINED WITHIN ARE THE PROPRIETARY ANDCREE CONFIDENTIAL. THIS PLOT AND THE INFORMATION
OF CREE INC.
NOTICE
X° ± .5 °.XXX ± .25.XX ± .75.X ± 1.5
FOR SHEET METAL PARTS ONLY
.XX ± .25
.XXX ± .125X° ± .5 °
UNLESS OTHERWISE SPECIFIEDDIMENSIONS ARE IN
MILLIMETERS AND AFTER FINISH.TOLERANCE UNLESS SPECIFIED:
SURFACE FINISH: 1.6
Trailer180mm (min) of
empty pocketssealed with tape
(15 pockets min.)
Loaded Pockets(1000 Lamps)
12±.14.31
16+.3-.0
1.75±.104±.10
Leader420mm (min) of
empty pocketssealed with tape
(35 pockets min.)
7.4
0.36
"13
13mm
1/13.000
A2402-00025
MKR LOADING SPEC
--
--
----
----
12/7/12D. CRONIN
REVISONS
REV DESCRIPTION BY DATE APP'D
A Initial Release DC 12/7/12
END START
User Feed Direction
CATHODE SIDE
ANODE SIDE
User Feed Direction
1.5± .1
SIZE
TITLE
OF
REV.
SHEET
CDRAWING NO.
DATE
DATE
DATE
CHECK
FINAL PROTECTIVE FINISH
MATERIAL
APPROVED
DRAWN BY
THIRD ANGLE PROJECTION
X° ± .5 °.XXX ± .010.XX ± .03.X ± .06
FOR SHEET METAL PARTS ONLY
.XX ± .01
.XXX ± .005X° ± .5 °
UNLESS OTHERWISE SPECIFIEDDIMENSIONS ARE IN INCHES
AND AFTER FINISH.TOLERANCE UNLESS SPECIFIED:
SCALE
A
B
C
D
123456
6 5 4 3 2 1
A
B
C
D
Phone (919) 313-5300Fax (919) 313-5558
4600 Silicon DriveDurham, N.C 27703
UNAUTHORIZED PERSON WITHOUT THE WRITTEN CONSENTMAY NOT BE COPIED, REPRODUCED OR DISCLOSED TO ANYCONFIDENTIAL INFORMATION OF CREE, INC. THIS PLOTCONTANED WITHIN ARE THE PROPRIETARY ANDCREE CONFIDENTIAL. THIS PLOT AND THE INFORMATION
OF CREE INC.
NOTICE
SURFACE FINISH: 63
330+.25-.75
12.4+1.0-.5MEASURED AT EDGE
16.4+0.2.0MEASURED AT HUB
12.4+.2
.0MEASURED AT HUB
±.213.1
1.9±.4
±.421
60° 60°
1/10.500
A2400-00009
REEL, 13" X 12MM, 3 PIECE SNAP
-
ANTI-STATIC HIPS
----
----
09/29/09D. CRONIN
2400-00009INDEX QTY ITEM COMMENTS
1 1 2400-00009-CORE2 2 2400-00009-REEL
REVISONS
REV DESCRIPTION BY DATE APP'D
SIZE
TITLE
OF
REV.
SHEET
CDRAWING NO.
DATE
DATE
DATE
CHECK
FINAL PROTECTIVE FINISH
MATERIAL
APPROVED
DRAWN BY
THIRD ANGLE PROJECTION
X° ± .5 °.XXX ± .010.XX ± .03.X ± .06
FOR SHEET METAL PARTS ONLY
.XX ± .01
.XXX ± .005X° ± .5 °
UNLESS OTHERWISE SPECIFIEDDIMENSIONS ARE IN INCHES
AND AFTER FINISH.TOLERANCE UNLESS SPECIFIED:
SCALE
A
B
C
D
123456
6 5 4 3 2 1
A
B
C
D
Phone (919) 313-5300Fax (919) 313-5558
4600 Silicon DriveDurham, N.C 27703
UNAUTHORIZED PERSON WITHOUT THE WRITTEN CONSENTMAY NOT BE COPIED, REPRODUCED OR DISCLOSED TO ANYCONFIDENTIAL INFORMATION OF CREE, INC. THIS PLOTCONTANED WITHIN ARE THE PROPRIETARY ANDCREE CONFIDENTIAL. THIS PLOT AND THE INFORMATION
OF CREE INC.
NOTICE
SURFACE FINISH: 63
330+.25-.75
12.4+1.0-.5MEASURED AT EDGE
16.4+0.2.0MEASURED AT HUB
12.4+.2
.0MEASURED AT HUB
±.213.1
1.9±.4
±.421
60° 60°
1/10.500
A2400-00009
REEL, 13" X 12MM, 3 PIECE SNAP
-
ANTI-STATIC HIPS
----
----
09/29/09D. CRONIN
2400-00009INDEX QTY ITEM COMMENTS
1 1 2400-00009-CORE2 2 2400-00009-REEL
REVISONS
REV DESCRIPTION BY DATE APP'D
SIZE
TITLE
OF
REV.
SHEET
CDRAWING NO.
DATE
DATE
DATE
CHECK
FINAL PROTECTIVE FINISH
MATERIAL
APPROVED
DRAWN BY
THIRD ANGLE PROJECTION
X° ± .5 °.XXX ± .010.XX ± .03.X ± .06
FOR SHEET METAL PARTS ONLY
.XX ± .01
.XXX ± .005X° ± .5 °
UNLESS OTHERWISE SPECIFIEDDIMENSIONS ARE IN INCHES
AND AFTER FINISH.TOLERANCE UNLESS SPECIFIED:
SCALE
A
B
C
D
123456
6 5 4 3 2 1
A
B
C
D
Phone (919) 313-5300Fax (919) 313-5558
4600 Silicon DriveDurham, N.C 27703
UNAUTHORIZED PERSON WITHOUT THE WRITTEN CONSENTMAY NOT BE COPIED, REPRODUCED OR DISCLOSED TO ANYCONFIDENTIAL INFORMATION OF CREE, INC. THIS PLOTCONTANED WITHIN ARE THE PROPRIETARY ANDCREE CONFIDENTIAL. THIS PLOT AND THE INFORMATION