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Copyright © 2013-2017 Cree, Inc. All rights reserved. The information in this document is subject to change without notice. Cree

®

 and XLamp

®

 are registered trademarks and the Cree logo is a trademark 

of Cree, Inc. Other trademarks, product and company names are the property of their respective owners and do not imply specific product and/or vendor endorsement, sponsorship or association. This 

document is provided for informational purposes only and is not a warranty or a specification. For product specifications, please see the data sheets available at www.cree.com.

6

XLamp

®

 mT FamiLy & mK FamiLy LED SoLDEring & HanDLing

noTEs on soLDErIng XLaMp

®

 MT FaMILy anD MK FaMILy LEDs

XLamp MT Family and MK Family LEDs are designed to be reflow soldered to a PCB. Reflow soldering may be done by a reflow oven or 
by placing the PCB on a hotplate and following the reflow soldering profile listed on the previous page.

Do not wave solder XLamp MT Family or MK Family LeDs. Do not hand solder XLamp MT Family or MK Family LeDs.

solder paste Type

Cree strongly recommends using “no clean” solder paste with XLamp MT Family or MK Family LEDs so that cleaning the PCB after reflow 

soldering is not required. Cree uses 

Kester

®

 R276 solder paste

 internally.

Cree recommends the following solder paste compositions: SnAgCu (tin/silver/copper) and SnAg (tin/silver).

solder paste Thickness

The 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 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.

P

CorrECT

P

CorrECT

X

 

Wrong

P

CorrECT

X

 

Wrong

Summary of Contents for XLamp MK Series

Page 1: ...ee XLamp MT Family and MK Family LEDs Introduction This application note applies to XLamp MT Family and MK Family LEDs which have order codes in the following formats MTxxxx xx xxxx xxxxxxxxx MKxxxx x...

Page 2: ...LEDs Manual Handling Use tweezers to grab XLamp MT Family or MK Family LEDs at the base Do not touch the lens with the tweezers Do not touch the lens with fingers Do not push on the lens Do not apply...

Page 3: ...and is not a warranty or a specification For product specifications please see the data sheets available at www cree com 3 XLamp MT Family MK Family LED Soldering Handling Whenever possible Cree recom...

Page 4: ...FINAL PR MATER APPRO DRAWN A B C D 2 3 4 5 6 6 5 4 3 2 UNAUTHORIZED PERSON WITHOUT THE WRITTEN CONSENT MAY NOT BE COPIED REPRODUCED OR DISCLOSED TO ANY CONFIDENTIAL INFORMATION OF CREE INC THIS PLOT C...

Page 5: ...Ts Measurement Point XLamp MT Family and MK Family LED case temperature Ts should be measured on the PCB surface as close to the LED s thermal pad as possible This measurement point is shown in the pi...

Page 6: ...ne by a reflow oven or by placing the PCB on a hotplate and following the reflow soldering profile listed on the previous page Do not wave solder XLamp MT Family or MK Family LEDs Do not hand solder X...

Page 7: ...d 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 Soldering Cree recommends u...

Page 8: ...ee recommends that users follow the recommended soldering profile provided by the manufacturer of the solder paste used and therefore it is the lamp or luminaire manufacturer s responsibility to deter...

Page 9: ...o consult your regional Cree Field Applications Engineer Recommended Cleaning Solutions Cree has found the following chemicals to be safe to use with XLamp MT Family and MK Family LEDs Water Isopropyl...

Page 10: ...fication For product specifications please see the data sheets available at www cree com 10 XLamp MT Family MK Family LED Soldering Handling Assembly Storage Handling Do not stack PCBs or assemblies c...

Page 11: ...ND START User Feed Direction CATHODE SIDE ANODE SIDE 1 5 1 SIZE TITLE OF REV SHEET C DRAWING NO DATE DATE DATE CHECK FINAL PROTECTIVE FINISH MATERIAL APPROVED DRAWN BY THIRD ANGLE PROJECTION SCALE A B...

Page 12: ...com 12 XLamp MT Family MK Family LED Soldering Handling Packaging Labels The diagrams below show the packaging and labels Cree uses to ship XLamp MT Family and MK Family LEDs XLamp MT Family and MK F...

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