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CAUTIONS for Through Hole LED

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

2. Storage

ThedstoragedambientdfordthedLEDsdshoulddnotdexceedd30°Cdtemperaturedord70%drelativedhumidityd.dItdisdrecommend-
eddthatdLEDsdoutdofdtheirdoriginaldpackagingdareduseddwithindthreedmonths.Fordextendeddstoragedoutdofdtheirdoriginald
packaging,ditdisdrecommendeddthatdthedLEDsdbedstoreddindadsealeddcontainerdwithdappropriateddesiccantdordindaddes-
iccatordwithdnitrogendambient.d
3. Cleaning

Usedalcohol-baseddcleaningdsolventsdsuchdasdisopropyldalcoholdtodcleandthedLEDsdifdnecessary.

4. Lead Forming & Assembly
Duringdleaddforming,dthedleadsdshoulddbedbentdatdadpointdatdleastd3mmdfromdthedbasedofdLEDdlens.dDodnotdusedthed
basedofdthedleadframedasdadfulcrumdduringdforming.Leaddformingdmustdbeddonedbeforedsoldering,datdnormaldtem-
perature.DuringdassemblydondPCB,dusedminimumdclinchdforcedpossibledtodavoiddexcessivedmechanicaldstress.

5. Soldering
Whendsoldering,dleavedadminimumdofdd2mmdclearancedfromdthedbasedofdthedlensdtodthedsolderingddpoint.dDippingdthed
lensdintodthedsolderdmustdbedavoided.

DodnotdapplydanydexternaldstressdtodthedleaddframedduringdsolderingdwhiledthedLEDdisdatdhighdtemperature.
Recommendeddsolderingdconditionsd:

SolderingdIron WavedSoldering

Pre-heat 100°CdMax.
300°CdMax.
Temperature Pre-heatdtime 60dsec.dMax.
Solderingdtime 3dsec.dMax. Solderdwave 260°CdMax.
(onedtimedonly)
Solderingdtime 10dsec.dMax
Note!
Excessivedsolderingdtemperaturedand/ordtimedmightdresultdinddeformationdofdthedLEDdlensdordcatastrophicdfailuredofd
thedLED
6. Drive Method

AndLEDdisdadcurrent-operatedddevice.dIndorderdtodensuredintensityduniformitydondmultipledLEDsdconnecteddindparal-
leldindandapplication,ditdisdrecommendeddthatdadcurrentdlimitingdresistordbedincorporateddindtheddrivedcircuit,dindseriesd
withdeachdLEDdasdshowndindCircuitdAdbelow.d

Through Hole LED > Application Note

079 d2013dCatalogd|dwww.liteon.com/opto