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首页 贴片电阻标识代码表

贴片电阻标识代码表

贴片电阻标识代码表

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2009-04-18 0人阅读 举报 0 0 暂无简介

简介:本文档为《贴片电阻标识代码表pdf》,可适用于IT/计算机领域

CThickFilmChipResistorsChipResistors*sizeandabove,seePagesCCFeatures:•Reducedsizeoffinalequipment•Lowerassemblycosts•HighercomponentandequipmentreliabilityApplications:•Camcorders•Cellular•Hearingaids•Advancedpagers•PalmtopcomputersDescription:Theresistorsareconstructedonahighgradeceramicbody(aluminumoxide)InternalmetalelectrodesareaddedateachendandconnectedbyaresistivepastewhichisappliedtothetopsurfaceofthesubstrateThecompositionofthepasteisadjustedtogivetheapproximateresistancerequiredandthevalueistrimmedtowithintolerance,bylasercuttingofthisresistivelayerTheresistivelayeriscoveredwithaprotectivecoatingFinally,externalendterminationsareaddedForeaseofsolderingtheouterlayeroftheseendterminationsisaleadinalloyDerating:ThepowerthattheresistorcandissipatedependsontheoperatingtemperatureSeeFigNote:ThisisthemaximumvoltagethatmaybecontinuouslyappliedtotheresistorelementDescriptionResistancerangeResistancetoleranceTemperaturecoefficientR£WW<R£MWAbsolutemaximumdissipationatTamb=°CMaximumpermissiblevoltageClimaticcategory(IEC)BasicspecificationValueWtoMWESeries±£±xK£±xKWV(DCorRMS)IECTypeCRLimitingVoltage()(V)LimitingPower(W)Tamb(°C)Pmax(Prated)FigMaximumdissipation(Pmax)inpercentageofratedpowerasafunctionoftheambienttemperature(Tamb)ColdwaterCanyon,NorthHollywoodCalifornia•Phone()•TollFree()•Fax()CThickFilmChipResistorsSizeChipResistorsForESeries(±J,±G,±KTolerances)DIGITSYSTEMFirsttwodigitsaresignificantandthirddigitismultiplier,“R”indicatesdecimalonvaluesunderohmsExamples:R=ohms=kohms=ohms=kohms=ohms=kohms=megohmsForESeries(±FTolerance)DIGITSYSTEMFirstthreedigitsaresignificantandfourthdigitismultiplier,“R”indicatesdecimalonvaluesunderohmsExamples:R=ohms=kohms=ohms=megohms=kohms=kohms=kohms=kohmsToleranceF=,J=TapeReelThereisnomarkingonproductTypeToleranceF=J=CRBJPackagingT=TapeTTypeCRL(mm)±W(mm)±T(mm)±tt(mm)±tb(mm)±Mass(g)protectivecoatresistorlayerinnerelectrodenickellayerNAulayeraluminumsubstrateprotectivecoatWTLtbtPartNumberingSystemA=UseforB=UseforNominalResistanceESeriesEXW=RW=ResistorsESeriesEXR=RkW=JumperDigitDigitColdwaterCanyon,NorthHollywoodCalifornia•Phone()•TollFree()•Fax()CFeatures:•Smallsizeandlightweight•Suitableforbothflowandreflowsoldering•ReductionofassemblycostsandmatchingwithplacementmachinesApplications:•Automotiveindustry•Pocketcalculators•Medicalandmilitaryequipment•Radioandtaperecorders•Telecommunicationequipment•TVtunersandvideocameras•ComputersNote:SpecialresistancetolerancerequirementavailableonacasetocasebasisPleaseindicatewhenorderingSpecialTCRrequirementscanbesuppliedonacasetocasebasisPleaseindicatewhenorderingConstructionTypeCRCRCRCRCRBCRCRA=UseforB=UseforToleranceJ=G=F=D=PackagingCodeT=TapeB=BulkCRBJTPartNumberingSystemThickFilmChipResistorsNominalResistanceESeriesEXW=RW=ResistorsESeriesEXR=RkW=JumperDigitDigitSpecialtyChipResistors:PCR–PowerChipResistorsFCR–FusibleChipResistorsFordetailedspecifications,pleaseconsultfactoryThickFilmChipResistorsColdwaterCanyon,NorthHollywoodCalifornia•Phone()•TollFree()•Fax()CPartNoEIASizePowerRatingat°CMaxWorkingVoltageCRCRCRCRCRBCRCRWWW(Std)WW(Std)WW(Std)WWWVVVVVVVPowerRatingandDimensionMaxOverloadVoltageVVVVVVVJumper±±±Jumper±±±Jumper±±±Jumper±±±Jumper±±±Jumper±±±Jumper±±±OperatingTemp(°C)Tolerance<mWWMWWMWWMW<mWWMegWWMegWWMegW<mWWMegWWMegWWMegW<mWWMegWWMegWWMegW<mWWMegWWMegWWMegW<mWWMegWWMegWWMegW<mWWMegWWMegWWMegWResistanceRangeEEEEEEEEEEEEEEEEEEEEEStandardSeriesResistiveElementProtectiveGlassOvercoatAluminaSubstrate(min)SolderPlating(micronsmin)NickelPlating(micronsmin)PalladiumSilver(micronsmin)ColdwaterCanyon,NorthHollywoodCalifornia•Phone()•TollFree()•Fax()CDimensionsTypeCRCRCRCRCRBCRCRPowerRatingWW(Std)WW(Std)WW(Std)WWWWEIASizeL±±±±±±W±±±±±±H±±±±±±±T±±±±±±±t±±±±STANDARDEVALUESANDRESISTANCECODEEValueEValueCodeValueCodeValueCodeValueCodeMULTIPLIERCODECodeMultiplierABCDEFGHXYZCODINGFORMULAXXResistanceCodeXMultiplierCodeExample:kW=xW=CCW=x=XXMarkingExamplesW=XkW=BkW=DMegW=EtMarkingTWHunit:mmLMarkingForESeries(±G,±J,±KTolerances)In,,,,andsizesDIGITSYSTEMFirsttwodigitsaresignificantandthirddigitismultiplier,“R”indicatesdecimalonvaluesunderohmsExamples:R=ohms=kohms=ohms=kohms=ohms=kohms=megohmsForESeries(±FTolerance)in,,,,andsizesDIGITSYSTEMFirstthreedigitsaresignificantandfourthdigitismultiplier,“R”indicatesdecimalonvaluesunderohmsExamples:R=ohms=kohms=ohms=megohms=kohms=kohms=kohms=kohmsForESeries(±FTolerance)insizeDIGITSYSTEM(Duetospacerestrictions)NomarkingforThickFilmChipResistorsThickFilmChipResistorsColdwaterCanyon,NorthHollywoodCalifornia•Phone()•TollFree()•Fax()C()PaperTapespecificationsFIGA()EmbossedplastictapespecificationFIGBøMaxMaxA±±±Bø±WDCFA±TapingSpecificationsinMillimeters()AvailabilityCRCRCRCRCRBCRCRWW,WW,WW,WWWWAAAABBBPaperPaperPaperPaperPlasticPlasticPlastic,,,,,,,TypePowerRatingEIASizeFigMaterialWidthQ’typerReel(pcs)CarrierTape()ReelSpecificationsFIGCCRCRCRCR±±±±±±±±TypeEIASizeAB*SameforJumpertypesCRBCRCR±±±±±±±±±±±±±±±±±±TypeEIASizeABCDFWCRCRCRCRCRBCRCRTypeEIASizeL±Leadertape:ApproximatelymmleadershallbeprovidedateachendofthetapeAccumulativetoleranceoffeedingholeandchippocketshallnotexceedmmoverpitches±A±LB*SameforJumpertypesThickFilmChipResistorsColdwaterCanyon,NorthHollywoodCalifornia•Phone()•TollFree()•Fax()CPerformanceSpecificationsCharacteristicsLimitsTestMethodsNaturalresistancechangepertempdegreecentigradeRRx(PPM°C)R(tt)R:Resistancevalueatroomtemperature(t)R:Resistancevalueatroomtempplus°C(t)PermanentresistancechangeaftertheapplicationofapotentialoftimesRCWVforsecondsApplyVDCbetweenprotectivecoatingandterminationforminute,thenmeasureApplyVACbetweenprotectivecoatingandterminationforminuteTwistofTestBoard:YX=mmforsecondsDiptheresistorintoasolderbathhavingatemperatureof°C±°Candholditfor±secondsTesttemperatureofsolder°C±°CDippingtheminsolder:±secondsResistancechangeaftercontinuousfivecyclesfordutycyclespecifiedbelow:StepTemperatureTime°C±°CminutesRoomtemp~minutes°C±°CminutesRoomtemp~minutesResistancechangeafter,hours(hours“on”hour“off”)atRCWVinahumiditychambercontrolledat°C±°CandtorelativehumidityPermanentresistancechangeafter,hoursoperatingatRCWV,withdutycycleofhours“on”,hour“off”at°C±°CambientTemperaturecoefficientJISCShorttimeoverloadJISCInsulationresistanceJISCDieletricwithstandingvoltageJISCTerminalbendingJISCSolderingHeatJISCSolderabilityJISCTemperaturecyclingJISCLoadlifeinhumidityJISCLoadLifeJISC±W–W£±PPM°CW–MW£±PPM°C±W–W£±PPM°CW–MW£±PPM°C±Tolerance±(W)±Tolerance±(W),MegaohmormoreNoevidenceofflashovermechanicaldamage,arcingorinsulationbreakdown±(W)Resistancechangerateis±(W)coverageMin±Tolerance±(W)±Tolerance±(W)±Tolerance±(W)±Tolerance±(W)±Tolerance±(W)±Tolerance±(W)*RCWV=RatedContinuousWorkingVoltage=RatedPowerxResistanceValueDeratingCurve°C°C°CAmbienttemperature(°C)

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贴片电阻标识代码表

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