山東廠家專業制造，長期穩定供貨，保質量產品特征：高亮度、顏色一致性好，正規方片生產主要應用范圍：背光、指示、燈飾詳細參數參閱以下說明書Productspecifications TYPE:2*3*4mmSquareBlueLEDPartNumber:Q23BK03LensColor: WhiteDiffuse ●Features:1．Longoperatinglife2．Instantlight3．Lowvoltageoperated4．Coolbeam,safetothetouch5．Moreenergyefficientthanincandescentandmosthalogenlamps6．Widelyusedinthelighting,industrialandelectronicsproducts. ●PackageOutlineDimension: NOTES:1、Alldimensionsareinmillimeters；2、Tolerancesare 0.1mm,unlessotherwisenoted. ●TypicalElectrical OpticalCharacteristics(Ta=25℃) PartNumber：Q23BK03Absolutemaximumratings(Ta=25℃)ParameterSymbolValueUnitForwardcurrentIf20mAReversevoltageVr5VPowerdissipationPd80mWSolderingTemperatureTsol260(for5seconds)℃Operating temperaturerangeTop-25~+80℃StoragetemperaturerangeTstg-30~+80℃Peakpulsingcurrent（1/8dutyf=1KHz）Ifp120mAElectrostaticdischargeESD1000VElectr-Opticalcharacteristics(Ta=25℃,If=50mA)ParameterTestConditionsymbolValueUnitMinTypMaxWalvelenthIf=20mA d465---470nmForwardvoltageIf=20mAVf3.0---3.6VLuminousIntensityIf=20mAIv150---250mcdLuminousFluxIf=20mA 0.5---1.0lmViewingangleat50%IVIf=20mA2 1/2---100---DegReversecurrentVR=5VIr---5--- A PartNumber：Q23BK03●TypicalElectro-OpticalCharacteristicsCurves PartNumber：Q23BK03●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：Q23BK03●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.