Nitsuko capacitor 日通工金膜电容

・NitsukoFilmCapacitorTarget

1）MiniaturizedMDST3

series

2)LownoiseFPS

series

NitsukoElectronicsCorporation

TheMarketofNitsukoFilmCapacitorPowersupplyMajorFilmcapacitormarketsareHomeAppliance,powersupply,CarElectronics,lightingandindustrialequipment.CarElectronicsIndustrialequipmentLightingHomeApplianceIHProjector

Liquid-crystalTVPDP1)Miniaturization

ForPCadaptorPFCcircuitCapacitorsforPowersupplyadapterrequiresMiniaturizationinparticular.Weassurehighreliabilityaswellasminiaturization.NitsukoElectronicsCorporation

1)MDST3series

・AdaptorforComputer

ForAdaptorTheminiaturizationdemandisthebest.

～Sizecomparison～450V

1.0μF450V

2.2μFMinimumclassintheworldOldNewOldNewMiniaturizedNitsuko

Competitor

VerythinSizeComparison

450VDC1.0μF

450VDC2.2μFNitsuko

Competitor

15mm

22.5mm

2)Lownoise

ForTVpowersupplyPFCcircuitCapacitorsforTVpowersupplyrequiresLow

noiseinparticular.NitsukoElectronicsCorporation

2)FPSseries

・LCDTVpowersupply

LCDＴＶmakerdemandtopowersupplymaker

Lownoise,Lower-LowerLownoiseＦＰＳFormerproductNitsukoCompetitor

NitsukoFPSABSoundLevel(dB)FPS

LowvibrationsoundforPFC

(MetallizedPolypropylenefilmcapacitor

）

PerformanceNitsukoElectronicsCorporationMiniaturizedDimensionsForLCDTV,LCDprojector,SilentserveretcReduced10dBormorefromtheformertype（byourmeasuringmethod）NewLowNoisetype

CapacitormaymakenoisewhenitusedinPFCcircuit.

ＬＣＤTVespeciallyrequireslownoise.Structureoffilmcapacitor

HereisthestructureoffilmcapacitorCapacitorisconstructedbywindingpairsofevaporatedfilms.Whenafilmcapacitorisappliedthevoltagewhichhasquickrisingandtrailingsuchasthesquarewave,theevaporatedfilmsrepeatsuctionandreboundbycoulombforcebetweentheelectrodesdependsonvoltagechange.Vibrationcanbecausedbystitchofjointgapbetweentheevaporatedfilms.Thisvibrationgetsoutasvibrationsound.

Evaporatedelectrode

Coverfilm

Dielectricfilm

Enclosure

Sprayedmetal

LeadwirePowersupplyforComputersometimesrequireslownoise.(Server,Apple)VibrationsoundcomparingdataComparingwiththecircuitwhichhasvibrationsoundbyrepeatedchargeanddischargeMeasuringcircuitforvibrationsound

Voltagewaveformofcapacitor

1ms/div100V/divCapacitorsforPFCcircuitReferenceNitsukoElectronicsCorporation

FilmCapacitorforPowersupplyAcrossthelineＣＦＤ‐ＮPFCSnubberＭＤＳＦＰＤＦＰＧＭＤＤ６００VACＣＦＤ‐ＮSmoothingＦＧＭＤＬＡＣ入力PFCYｺﾝMDST3ＦＰＤFPSThereisnosuchsizeandfeatureasourproductforPFC.Theworld’ssmallestForhighcurrentLowvibrationsound

CapacitorsForPFCcomparisonｱｸﾃｨﾌﾞﾌｨﾙﾀｰ（ＰＦＣ）用商品比較

MDXMDST3FPS特長Feature標準品Standard小型化品Miniaturized低振動音Lownoise誘電体DielectricPETPETPP寸法Dimensions○

100◎

75○

100高温対応Hightemperature105℃315VDC

MAX110℃351VDC

MAX105℃315VDC

MAX振動音Vibrationsound△△◎450V0.47μＦ450V1μＦ450V2.2μＦNitsukoWehadworkedonminiaturizingproductof450Vandrealizedtheminiaturizedproductmuchsmallerthancompetitors.【Miniaturizationdevelopment

Exampleof450V,PET】

ＭＤＳＭＤＳＴNitsukoProductclassＭＤＸMDST3Commonsize(Competitor)Minimumsize(Competitor)Nitsukois№1FilmcapacitorsupplierforPFCcircuit-Miniaturization,Lownoise,Quality-Weassurehighreliabilityaswellasminiaturization.NitsukoElectronicsCorporation

Endurancetest85℃、450×1.25＝applied563VDCNitsuko

MDX22W225K(450V,2.2μF)Competitor

450V,2.2μFSmallchangeincapacitanceWeactualizedhighreliability.NoAppearancechangeSwollen

testedarticle

NormalarticleCapacitancechangeRateofchangePeriod(H)Period(H)RateofchangeCapacitancechangeNitsukoVSCompetitor(Miniaturizedtype)

Testdata

450Ｖ0.47μF

High-temperatureloadingtest

85℃563V

CompetitorNitsuko・Thereisconcernaboutoperatinglifeatthislevel.Itcouldbethattheperformancedecreasesincapacitanceover10yearsbygradation.

・

Itremainspossiblethattheproductbreakdown(burnout)attheworst.

Therewereburnoutaccidentsseveraltimes.→Theyhavenotenoughperf