Quoting Apptech : > Answering own question: > > One example > > > ______________ > > 1 - 3 mA / Farad While 0.5C mA sounds pretty bad, especially on a 500F capacitor, that's equivalent to 50nA leakage on a 100uF capacitor. Best regards, Spehro Pefhany -- "it's the network..." "The Journey is the reward" s...@interlog.com Info for manufacturers: http://www.trexon.com Embedded software/hardware/analog Info for designers: http://www.speff.com -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist