KFM series

      KFM series,electrolytic capacitors, are designed for ballast applications and switching power supplies.
      KFM series have six features.The first one is about electronic ballasts.The second one is that KFM series are applied to switching power supplies.The third one is about high voltage.The fourth one is about long life.The fifth one is about high temperature.The last one is about ROHS compliant.
      The following is about specification of KFM series.Capacitance tolerance would be within ±20% at 120Hz and 20.Operating temperature range should be -40 to +105 under the condition of 160 to 400WVDC or -25 to +105 under the condition of 450 WVDC.When the WVDC are160,200,250,350,400 and 450, the corresponding SVDC(Surge Voltage) respectively are 200,250,300,400,450 and 500.Dissipation Factor at 120Hz and 20 is as follows.When WVDC is 160 tan should be 0.15.When WVDC is 200 tan should be 0.15.When WVDC is 250 tan should be 0.15.When WVDC is 300 tan should be 0.24.When WVDC is 450 tan should be 0.24.When WVDC is 500 tan should be 0.24.Leakage current should be 0.06CV+10uA under the condition of 2 minute.Low temperature stability impedance ratio at 120 Hz should be 3 when rated WVDC is from 160 to 250 and temp is -25/ +20.Low temperature stability impedance ratio at 120 Hz should be 6 when rated WVDC is from 350 to 400 and temp is -25/ +20.Low temperature stability impedance ratio at 120 Hz should be 6 when rated WVDC is 450 and temp is -25°C/ +20.Low temperature stability impedance ratio at 120 Hz should be 4 when rated WVDC is from 160 to 250 and temp is -40/+20.Low temperature stability impedance ratio at 120 Hz should be 6 when rated WVDC is from 350 to 400 and temp is -40/ +20.Load life should be 10,000 hours (8000 hours D=10mm) with rated voltage and ripple current applied at 105 when Capacitance change 20% of initial measured value,Dissipation factor 200% of maximum specified value and Leakage current<100% of specified value.Shelf life should be 1000 hours at 105 with no voltage applied when capacitance change 20% of initial measured value,dissipation factor 200% of maximum specified value and Leakage current<100% of specified value.When the frequencies were 120Hz,1kHz,10kHz and 100kHz,the corresponding Ripple Current Multipliers were 0.5,0.8,0.9 and 1.0.When the temperature respectively, +65, +75, +85, +95 and +105,the corresponding ripple current multipliers were 1.8,1.65,1.5,1.25 and 1.0.