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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.

7

XLamp

®

 mT FamiLy & mK FamiLy LED SoLDEring & HanDLing

after soldering

After soldering, allow XLamp MT Family and MK Family 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 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 soldering

Cree recommends using “no clean” solder paste so that flux cleaning is not necessary after reflow soldering. If PCB cleaning is necessary, 

Cree recommends the use of isopropyl alcohol (IPA).

Do not use ultrasonic cleaning.

MoIsTurE sEnsITIvITy

Cree recommends keeping XLamp LeDs in the provided, resealable moisture-barrier packaging (MBP) until immediately prior to soldering. 
Unopened MBPs that contain XLamp LeDs do not need special storage for moisture sensitivity.

Once the MBP is opened, XLamp MT Family and MK Family LeDs may be stored as MSL 1 per JeDeC J-STD-033, meaning they have 

unlimited floor life in conditions of ≤ 30 ºC/85% relative humidity (RH). Regardless of storage condition, Cree recommends sealing any 

unsoldered LeDs in the original MBP.

LoW TEMpEraTurE opEraTIon

The  minimum  operating  temperature  of  these  XLamp  LED  components  is  -40  °C. To  maximize  lifetime,  Cree  recommends  avoiding 
applications where the lamps are cycled on and off more than 10,000 cycles at temperatures below 0 °C.

noTEs on soLDErIng XLaMp

®

 MT FaMILy anD MK FaMILy LEDs - ConTInuED

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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