NEC fuse 温度保险丝

1THERMALCUTOFF™ContentsSEFUSE™15/10A15A2A1A0.5ASF/ESeriesRatedCurrentPageSF/YSM/ASM/BSM/G73C240C73C240C76C187C100C150C100C150C66888Introduction,Features,Application2Construction3StandardRatings5PerformanceData9DefinitionofTerms13LeadCuttingandTaping14Cautions15JapanULCSAVDEBEABCCEECCIBSafetystandardsSelectoptimumseriesaccordingtotemperatureandelectricalratings.PleasebesuretoreadtheCautionsonpages15through18beforeusing.1™SEFUSE™isacompactandreliablethermalcutoffdesignedtoprotectdomesticelectricalappliancesandindustrialelectricalequipmentfromfire.Cutoffoccursandanelectricalcircuitopenswhenambienttemperatureincreasestoanabnormallevel.TwoSEFUSEtypesareavailable.TheSFtypeusesanorganicthermosensitivematerialasthethermalpelletanditsoperatingtemperaturerangeis73Cto240C.TheSMtypeusesafusiblealloyandhasanoperatingrangeof76Cto187C.SEFUSEismanufacturedinJapanandThailand,andbothfactoriesareceritifiedbytheInternationalStandardsOrganization(ISO)fortheISO9001orISO9002qualitystandard.FeaturesExcellentlysensitivetoambienttemperatureStableandpreciseoperationOneshotoperationWidechoiceoftypestosuitetheapplication(SForSM)SFtypeshasceramicpipetoprotectsealingresinfromthestresswhenbendingtheleads.MeetsmanysafetystandardsCadmiumfreeandLeadfreeSFisavailableApplicationsIrons,hairdryers,heaters,Refrigerators,ricecookers,waterpots,coffeemakersAirconditioners,ventilationfans,electricfans,gasboilersTransformers,powersuppliers,adaptors,solenoidesChargers,batterypacksCopiers,laserbeamprinters,powertapsThermalCutoffApplicationExamplesIronInverterTransformerLCDTelevisionRicecookerForthepurposeofphotography,theinsulationtubeofthethermalcutoffhasbeenremoved.Inreality,thethermalcutoffiscoveredbytheinsulationtube.2TheSFtypecontainsaslidingcontact,springs,andathermalpelletinsideametalcase.WhenspringBiscompressed,firmcontactbetweenleadAandtheslidingcontactoccurs.Atnormaltemperatures,currentflowsfromleadAtotheslidingcontactandthenthroughthemetalcasetoleadB.WhentheambienttemperaturerisestotheSEFUSEoperatingtemperature,theheattransferredthroughthemetalcasemeltsthethermalpellet.Whenthethermalpelletmelts,springsAandBexpand,movingtheslidingcontactawayfromleadA.TheelectricalcircuitisopenedbybreakingcontactbetweentheslidingcontactandleadA.TheSFtypeusesanorganicthermosensitivepelletinsideametalcase.Itfeaturesalargecutoff(rated)currentof10Aor15A.AfterOperationBeforeOperationConstructionThermalPelletLeadBLeadAMetalCaseSpringBSpringASlidingContactDisksCeramicCeramicPipeSealingResinMetalCaseSpringBSpringAThermalPelletDisksSlidingContactSEFUSE™3TheSMtypeusesafusiblealloyinsideaceramiccase.Ithasacutoff(rated)currentof0.5A,1Aor2A.Becauseofitsinsulatedcase,theSMtypecanbeattacheddirectlywheretemperaturedetectionisrequired.LeadLeadFusibleAlloyFluxLeadLeadCeramicCaseFusibleAlloySealingResinSealingResinFluxWhenambienttemperaturerisestotheSEFUSEoperatingtemperature,thefusiblealloymeltsandcondensesintoadroparoundtheendofeachleadbecauseofsurfacetensionandthecoatingofspecialflux.Theelectricalcircuitthenopens.AfterOperationIntheSMtype,leadsareconnectedbyafusiblealloy.Thecurrentflowsdirectlyfromoneleadtotheother.Thefusiblealloyiscoatedwithaspecialflux.BeforeOperation4Dimension(Unit:mm)StandardRatingsø1.020(35)66(81)3511ø1.0ø4.2Note:Thedimensionsforlongleaddevicesareinparentheses.ø1.320(35)66(81)3511ø1.3ø4.2SF/ESeriesSF/YSeriesSEFUSE™MarkingHowtoreadalotnumberSub-lotnumberMonthXOctoberYNovemberZDecemberLasttwodigitofyearex.)0141HowtoreadalotnumberSub-lotnumberMonthXOctoberYNovemberZDecemberLasttwodigitofyearex.)0141Dimension(Unit:mm)MarkingFactoryCodeFactoryCoderepresentsthefactorylocationasshownbelow.Japan:none,Thailand:BMITIApprovedMarkBrandNamePartNumberLotNumberRatedFunctioningTemperatureRatedCurrentRatedVoltageMakerMarkMITIApprovedMarkBrandNamePartNumberLotNumberRatedFunctioningTemperatureRatedCurrentRatedVoltageNote:Thedimensionsforlongleaddevicesareinparentheses.5TMTm1)RatedFunctioningTemperatureTFTfPartNumberMadeinJapanMadeinJapanMadeinThailandMadeinThailandMadeinJapanULCSAVDEBEABCCIBCCEEMadeinThailandOperatingTemperatureTHThRatedCurrentRatedVoltageSF70EE71747C1060SF76ESF91ESF96ESF109ESF119ESF129ESF139ESF152ESF169ESF188ESF214ESF226ESF240E7333-3126778.2-1171-000233-33133-33233-3332001LV26182001LV2561CH0045037-2000CH0045041-200033-33433-33533-33633-54933-35433-83533-83433-83333-83233-83133-83033-88633-82733-8284577949911312113314215717219221622724070296276516671849410411412714416420020020015015015015015015015A10A1591591721893003003503)2)2)2)5)4)AC250V4)6)350RatingsRatingsNote:1)Partnumbersareforstandardleaddevices.Forlongleads,addthenumber-1attheendofpartnumber.2)ThapprovedbyBEABis189CforSF214Eand190CforSF226EandSF240E.3)TMapprovedbyULis240C.TmapprovedbyCSAis330C.4)Theelectricalratingsbysafetystandardsareasfollows.Note:1)Partnumbersareforstandardleaddevices.Forlongleads,addthenumber-1attheendofpartnumber.5)SF169E,SF188E,SF214E,SF226EandSF240EhasarecognitionofCHratingbyUL.6)Thenumberinparenthesesareproviousnumber.Bothnumbercanbeinquired.(C)(C)(C)(C)418822621416923