特征：高亮度，低光衰，抗靜電能力高，正規(guī)廠家方片生產(chǎn)，保質(zhì)量主要應(yīng)用范圍：護(hù)欄管、燈具、燈飾詳細(xì)參數(shù)參閱以下說明書Productspecifications TYPE:4.8mmHatLEDPartNumber:N48RT02LensColor:Redclear ●Features:1．Longoperatinglife2．Instantlight3．Lowvoltageoperated4．Coolbeam,safetothetouch5．Moreenergyefficientthanincandescentandmosthalogenlamps6．Widelyusedinthelighting,industrialandelectronicsproducts. ●PackageOutlineDimension: NOTES:1、Alldimensionsareinmillimeters；2、Tolerancesare 0.1mm,unlessotherwisenoted. ●TypicalElectrical OpticalCharacteristics(Ta=25℃) PartNumber：N48RT02Absolutemaximumratings(Ta=25℃)ParameterSymbolValueUnitForwardcurrentIf20mAReversevoltageVr5VPowerdissipationPd60mWSolderingTemperatureTsol260(for5seconds)℃Operating temperaturerangeTop-25~+80℃StoragetemperaturerangeTstg-30~+80℃Peakpulsingcurrent（1/8dutyf=1KHz）Ifp120mAElectrostaticdischargeESD 1000VElectr-Opticalcharacteristics(Ta=25℃,If=50mA)ParameterTestConditionsymbolValueUnitMinTypMaxWalvelenthIf=20mA d620---630nmForwardvoltageIf=20mAVf1.8---2.4VLuminousIntensityIf=20mAIv150---250mcdLuminousFluxIf=20mA 0.5---1.0lmViewingangleat50%IVIf=20mA2 1/2---160---DegReversecurrentVR=5VIr---5--- A PartNumber：N48RT02●TypicalElectro-OpticalCharacteristicsCurves ●Reliabilitytestitemsandconditions:No.TestitemTestconditionSamplesizeAc/Re1DCOperationlifeIf=DC20mATemp:RoomtemperatureTesttime:1000hrs220/12HighttemperatureHighthumidityTemp.:+85℃RH=85%HRTesttime:1000hrs220/13Thermalshock-35℃---~---+85℃20min10s20minTesttime:300cycles220/14HighttemperaturestorageHighttemp.:+85℃Testtime:1000hrs220/15LowtemperaturestorageLowtemp.:-35℃Testtime:1000hrs220/16Temperaturecycle-35℃---~---+100℃15min5min15minTesttime:300cycles220/17ReflowsolderingOperationheating:260℃(Max.)within10seconds(Max.)220/1 ●Judgementcriteriaoffailureforthereliability ※Iv:Below50%oftheinitialvalue※Vf:Over20%oftheupperlimitvalue※Ir:Over2timesoftheupperlimitvalue Note:Measurementshouldbetakenbetween2hoursandafterthetestledshavebeenreturnedto normalambientconditionaftercompletionofeachtest. PartNumber：N48RT02●Precautionsforuse:1.TemperatureinuseSincethelightgeneratedinsidetheLEDneedstobeemittedtooutsideefficiently,aresinwithhightlighttransparencyisused,therefore,additivestoimprovetheheatresistanceormoistureresistance(silicagel,etc)whichareusedforsemiconductorsproductssuchastransistorscannotbeaddedtotheresin.Consequently,theheatresistantabilityoftheresinusedforLEDisusuallylow,therefore,pleasebecarefulofthefollowingpoints:Avoidapplyingexternalforce,stressandexcessivevibrationtotheresinsandterminalsathighttemperature.TheglasstransitiontemperatureofepoxyresinussedfortheLEDisapproximately120-130℃.Ifthetemperatureexceedingthelimit,thecoefficientoflinerexpansionoftheresindoublesormorecomparedtothatatnormaltemperatureandtheresinwillbesoftened.Andifsomeexternalforceorstressisappliedatthattime,itmaycauseawiredamage. 2.SolderingAftersoldering,avoidedapplyingexternalforce,stressandexcessivevibrationuntiltheproductsdowntotheroomtemperature(thesametotermialleads). 3.DesigningCaremustbetakentoprovidethecurrentlimitingresistorinthecircuitsoastodrivetheLEDwithintheratedfigures,AlsocautionshouldbetakennottooverloadLEDwithexorbitantvoltageattheturningONandOFFofthecircuit.Whenusingthepulsedrivecaremustbetakentokeeptheaveragecurrentwithinitheratedfigures,AlsothecircuitshouldbedesignedsoasbesubjectedtoreversevoltagewhenturningofftheLED. 4.StorageInordertoavoidtheabsorptionofmoisture,itisrecommendedtosolderLEDassoonaspossibleafterunpackingthesealedbags. 5.Anti-staticelectricityAstheblue,green,whiteandpuplesaresensitivetotheESD,soduringthehandling,soldering,testingandpackingprocesstheanti-staticmeasurementsmustbeapplied.OtherwisetheLEDwillbedamaged.