High current low pass pi section filter tusonix 4206 001lf high current low pass pi section filter 4206 001lf 1000v dc voltage 25a current 3000pf capacitance solder lug this bushing filter is designed to suppress unwanted emi rfi noise in power circuits where high current ratings are applied pi section for better filtering applications include microwave and telecomms datacomms industrial sensors and control systems tusonix 4206 001lf 1000pf bushing pi filter