PUM series

      PUM series are electrolytic capacitors with a 7 mm height and low profile radial which are made of lead aluminum.PUM series are designed for all general purpose applications.
      PUM series have four features.The first one is that they are Very small size.The second one is that Capacitance range of PUM series is from  4.7 F to 220 F.The third one is that Voltage range is from 6.3 WVDC to 50 WVDC.The last one is about Solvent tolerant end seals standard.
      The following is about general specification of PUM series. Capacitance Tolerance is±20% at 120Hz and 20.Operating Temperature Range should be from -40 to +85.Dissipation Factor at 120Hz and 25 is as follows.When WVDC is 6.3V tan should be 0.24.When WVDC is 10V tan should be 0.20.When WVDC is 16V tan should be 0.16.When WVDC is 25V tan should be 0.14.When WVDC is 35V tan should be 0.12.When WVDC is 50V tan should be 0.10.when Freq is 120Hz and Temp is -25/20,Impedance Ratio(Max.)should be 4 corresponding to WVDC is 6.3V.Impedance Ratio(Max.)should be 3 corresponding to WVDC is 10V.Impedance Ratio(Max.)should be 2 corresponding to WVDC is 16V.Impedance Ratio(Max.)should be 2 corresponding to WVDC is 25V.Impedance Ratio(Max.)should be 2 corresponding to WVDC is 35V.Impedance Ratio(Max.)should be 2 corresponding to WVDC is 50V.
when Freq is 120Hz and Temp is -40/20,Impedance Ratio(Max.)should be 10 corresponding to WVDC is 6.3V.Impedance Ratio(Max.)should be 8 corresponding to WVDC is 10V.Impedance Ratio(Max.)should be 6 corresponding to WVDC is 16V.Impedance Ratio(Max.)should be 4 corresponding to WVDC is 25V.Impedance Ratio(Max.)should be 4 corresponding to WVDC is 35V.Impedance Ratio(Max.)should be 4 corresponding to WVDC is 50V.
Leakage current should be 0.01 CV or 3 A whichever is greater when WVDC is less than or equal to 50 WVDC and time is 2 minutes.Load Life should be 2,000 hours at 85 with rated WVDC when Capacitance change< 20% of initial measured values,Dissipation factor<200% of initial specified value and Leakage current<Initial specified value.Shelf Life should be 1,000 hours at 85 with no voltage applied.When the frequencies were 50,120,400,1kHz,10kHz and 100kHz,Ripple Current Multipliers were 0.8, 1.0, 1.3, 1.45,1.65 and 1.7.When the temperature respectively, +85, +70, +60, +30 ,Ripple Current Multipliers were 1.0,1.3,1.5 and 1.8.