100 BASE T-4 COMMON MODE CHOKE Turns Ratio ( + 3% ) 1:1 PARAMETER MIN. Open Circuit Inductance TYP. MAX. UNITS µH 36 Leakage Inductance .2 µH Interwinding Capacitance 15 pF DC Primary Resistance .35 Ω Isolation (HI-POT) 500 VRMS Impedance at 30 Mhz Impedance at 50 Mhz Impedance at 70 Mhz 2000 1500 1000 Ω Ω Ω Schematic Diagram Impedance ( Ohms ) 4000 Typical 3000 2000 Minimum 1000 0 10 20 40 60 80 100 Frequency ( MHz ) Physical Dimensions inches (mm) Rhombus Industries Inc. Transformers & Magnetic Products 200 300 RHOMBUS P/N: F-1515 CUST P/N: DATE: 8/16/96 www.rhombus-ind.com NAME: SHEET: 1 OF 1 15801 Chemical Lane, Huntington Beach, CA 92649-1595 Phone: (714) 898-0960 FAX: (714) 896-0971