Page 60 - LiteOn_Cover01

CAUTIONS for SMD LED

1. Application

ThedLEDsddescribeddheredaredintendeddtodbeduseddfordordinarydelectronicdequipmentd(suchdasdofficedequipment,d
communicationdequipmentdanddhouseholddapplications).dConsultdLite-On'sdSalesdindadvancedfordinformationdondap-
plicationsdindwhichdexceptionaldreliabilitydisdrequired,dparticularlydwhendthedfailuredordmalfunctiondofdthedLEDsdmayd
directlydjeopardizedlifedordhealthd(suchdasdindaviation,dtransportation,dtra cdcontroldequipment,dmedicaldanddlifedsup-
portdsystemsdanddsafetyddevices).

2. Storage

Thedpackagedisdsealed:d
dThedLEDsdshoulddbedstoreddatd30℃dordlessdandd90%RHdordless.dAnddthedLEDsdaredlimiteddtodusedwithin
onedyear,dwhiledthedLEDsdisdpackeddindmoisture-proofdpackagedwithdtheddesiccantsdinside.

Thedpackagedisdopened:
ThedstoragedambientdfordthedLEDsdshoulddnotdexceedd30℃ temperaturedord60%drelativedhumidity.

ItdisdrecommendeddthatdLEDsdoutdofdtheirdoriginaldpackagingdaredIR-refoweddwithindonedweekdfordMSLd3dlevel;dwithind
4dweeksdfordpartsdatdratingd2a.d

Fordextendeddstoragedoutdofdtheirdoriginaldpackaging,ditdisdrecommendeddthatdthedLEDsdbedstoreddindadsealeddcon-
tainerdwithdappropriateddesiccant,dordindaddesiccatorsdwithdnitrogendambient.d

ChipdLEDdatdMSLd3dstoreddoutdofdtheirdoriginaldpackagingdfordmoredthandadweekdanddatdMSLd2adfordmoredthand4dweeksd
shoulddbedbakeddatdaboutd60ddegdCdfordatdleastd20dhoursdbeforedsolderdassembly.dPLCCdstoreddoutdofdtheirdoriginald
packagingdfordmoredthandonedweekdshoulddbedbedbakeddatdaboutd60ddegdCdfordatdleastd48dhoursdbeforedsolderdassem-
bly.

3. Cleaning
Usedalcohol-baseddcleaningdsolventsdsuchdasdisopropyldalcoholdtodcleandthedLEDdifdnecessary.

4. Soldering

Refowdsoldering Solderingdiron

Pre-heat 150~200℃ 300℃dMax.
Pre-heatdtime 120dsec.dMax. Temperature 3dsec.dMax.
Peakdtemperature 260℃ Max. Solderingdtime (onedtimedonly)
Solderingdtimed 10dsec.dMax.d(Max.dtwodtimes)

Soldering notes:
Becauseddi erentdboardddesignsduseddi erentdnumberdanddtypesdofddevices,dsolderdpastes,drefowdovens,danddcircuitd SMD LED > Application Notes
boards,dnodsingledtemperaturedprofledworksdfordalldpossibledcombinations.d
However,dyoudcandsuccessfullydmountdyourdpackagesdtodthedPCBdbydfollowingdthedproperdguidelinesdanddPCB-specif-
icdcharacterization.

Lite-OndRunsdbothdcomponent-leveldverifcationdusingdin-housedKYRAMX98drefowdchambersdanddboard-leveldas-
sembly.

Thedresultsdofdthisdtestingdaredverifeddthroughdpost-refowdreliabilitydtesting.

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