Casing Type Metal box LF Series LF Series Screw Terminal Type Screw Terminal Type RoHS Compliant RoHS Compliant WithstandingInsulation resistance Leakage Voltage Self- Operating Rated Rated voltage 1 min., 500VDC 1 min., currentdrop temperature temperatureCertified Weight Model voltage current line to groundline to ground 250V/60Hz, 50Hz, rise range standard (kg) AC/DC (V) AC/DC (A) AC (V) (M ) min. (mA) max. (V) max. (K) max. (C) LF-220 250 20 1500 300 1 1.5 30 20 to +55 1.2 LF-230 250 30 1500 300 1 1.5 30 20 to +55 1.2 LF-230FU 250 30 1500 300 1 1.5 30 20 to +55 UL 1.2 LF-220N 250 20 1500 300 1 1.5 30 20 to +55 1.2 LF-220P 250 20 2000 300 1 1.5 30 20 to +55 1.2 LF-230N 250 30 1500 300 1 1.5 30 20 to +55 1.2 LF-230P 250 30 2000 300 1 1.5 30 20 to +55 1.2 Shape and Dimensions LF-220, 220N, 220P, LF-230, 230N, 230P LF-230FU 4-4.5 160 60 144 4-4.5 130 30 4-M6 4-M6 E IN Label M4 IN Label E 130 30 144 29 29 160 60 29 29 mm Circuit Diagram LF-220, 220P, 230, 230P LF-220N, 230N Series LF-230FU E E IN IN IN Measuring Circuit Common mode Normal mode EMI/EMC EMI/EMC filter filter P Z 0 Z 0 Z 0 Z 0 Z 0 P: Power divider Z : 50 Z : 50 0 0 Noise Filters VOL.11 70 58 40 Oscillator Level meter 70 Oscillator 58 40 Level meter Casing Type Metal box Attenuation (Static Characteristics) 100 LF-220 Common mode 90 LF-230, LF-230FU Common mode 80 70 60 50 40 LF-230, LF-230FU Normal mode 30 LF-220 Normal mode 20 10 0 0.1 0.5 1 5 10 20 30 Frequency (MHz) Noise Filters VOL.11 Insertion Loss (dB)