10 BASE-T QUAD PORT TRANSFORMER Fast Rise Times IEEE 802.3 Compatible Meets ECMA Requirements Operating temperature Range -45oC to +85oC Electrical Specifications at 25o C Sine Wave Part Turns Ratio Inductance Number (+2%) (µH MIN) 1 Interwinding Capacitance (pF MAX) 1 Leakage Inductance (µH MAX) 1 Return Loss 5 to 10mHz (dB MIN) 100 Ω Transmit T-17404 1CT : 2CT 180 10 0.30 -20 Common Mode Rejection TX (dB MIN) 5 mHz 98+13Ω -15 -50 10 50 100 mHZ mHZ mHz -40 -30 -20 200 mHz -14 Hipot (VRMS MIN) 1500 1. Measured at 20 mVrms, 100 kHz. Insertion Loss : Typically -0.5 dB maximum from 1 to 10 mHz. Crosstalk : From 1 to 10 mHz is -35 dB minimum. Schematic Diagram 1 2 RX 3 4 5 TX 6 7 8 TX 10 9 11 RX 28 27 26 25 24 23 22 21 1:1 1CT:2CT 1CT:2CT 29 1:1 31 30 1:1 1CT:2CT 1CT:2CT 39 38 37 36 35 34 33 32 1:1 40 20 12 13 14 15 16 17 18 19 TX RX RX TX Dimensions in inches (mm) 1.120 (28.45) .485 (12.32) MAX. MAX. .230 (5.84) MAX. .016 (0.41) .050 (1.27) TYP. TYP. .010 (0.25) TYP. .010 (0.25) .045 (1.14) TYP. TYP. .640 (16.26) .620 (15.75) RHOMBUS P/N: T-17404 CUST P/N: NAME: DATE: 02/16/00 SHEET: Rhombus Industries Inc. Transformers & Magnetic Products www.rhombus-ind.com 1 OF 1 15801 Chemical Lane, Huntington Beach, CA 92649 Phone: (714) 898-0960 FAX: (714) 896-0971