Thetestmethodandtestconditi***ofleakagecurrentofaluminumelectrolyticcapacitorareasfollows:at25℃,a1000ωprotectiveresistanceisconnectedtotheratedvoltageinseriesofthetestedcapacitortomeasuretheleakagecurrent.Afterapplyingthevoltageof5min,theleakagecurrentdoesnotexceedthemaximumvalueofthespecification.The***allcapacityaluminumelectrolyticcapacitorcanusethe1mintestresult,thelargecapacityaluminumelectrolyticcapacitorwillneedlongertesttime,fromthecharacteristiccurvecanbeseen,Thecurrentwillbeinfinitelyclosertothefinalleakagecurrent,thecurrentrequiredtosupplementthealuminamedium.Thelossfactor(dissipationfactor,df)ofelectrolyticcapacitorscanbeunderstoodasthereactivepowerofelectrolyticcapacitorsandtheactivepowerofequivalentseriesresistor(esr)underACcurrentexcitation.***iously,thisistheratioofcapacitivereactancetoequivalentseriesresistance(esr).TherccircuitinACcircuit,andthisratioisverymuchlikethetangentfunctionoftrigonometricfunction.)