100BASE-T INTERFACE TRANSFORMER Reinforced Insulation Per EN 41003/EN 60950 Turns Ratio ( + 5% ) 1CT:1CT Parameter Min. Open Circuit Inductance 350 Max. Meets IEE 802.3 and ANSI X3.263 Standards. Units Transformer can be used for Transmit or Receive side. µH (8 mA DC Bias) Leakage Inductance 0.9 µH Interwinding Capacitance (CW/W) 10 pF Primary DC Resistance 0.9 ohms Secondary DC Resistance 1.0 ohms Insertion Loss (0.1 - 100 MHz) -1.0 dB Return Loss 1 - 30 MHz 40 MHz 50 MHz 60 - 80 MHz Isolation (HI-POT) -22 -20 -18 -12 dB dB dB dB 4000 V RMS Flammability: Materials used in the production of these units meet requirements of UL94-VO and IEC 695-2-2 needle flame test. Parts shipped in anti-static tubes. 31 pieces per tube Surface mount version of this part available. Part# T-1477G OPERATING TEMPERATURE RANGE: -400C TO +850C Physical Dimensions inches (mm) Schematic Diagram PRELIMINARY! RHOMBUS P/N: T-1477 CUST P/N: DATE: 12/14/01 Rhombus Industries Inc. Transformers & Magnetic Products 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