100 BASE-T4 Designed to provide isolation and impedance matching for 4 twisted pairs in a 100 Mbps Transmission over UTP-3 Cable. TRANSFORMERS IEEE 802.3 Compatible Designed for popular 100Base-T4 transceiver chips Common Mode Choke available for improved EMI performance o Electrical Specifications at 25 C Designed for Quad SMD Dual SMD use with 24-Pin 16-Pin Transceiver I.C. Part. No. Part. No. T-15202 SEEQ 80C240P Cypress CY7C971 T-15203 T-15200S T-15201S Turns Ratio +3% OCL Min. ( µH ) LL max. ( µH ) DCRP max. (Ω) Cw/w max. ( pF ) Isolation (VRMS) 1:2CT 2CT:1CT 350 350 1.0 1.0 0.5 1.0 14 10 1500 1500 T-15202 Schematic Diagram PRI 24 23 PRI 22 21 PRI 20 19 18 17 24-Pin SMD Package: T-15202, T-15203 Dimensions in Inches (mm) PRI 16 15 14 Tape & Reel Available 13 0.700 (17.78) .526 (13.35) MAX. 1 2 3 5 4 SEC 6 7 8 SEC 9 11 10 SEC .296 (7.52) 12 MAX. SEC T-15203 Schematic Diagram PRI 24 1 23 PRI 22 3 2 SEC 21 PRI 20 19 5 6 SEC 4 18 7 17 PRI 16 15 9 8 SEC 10 T-15200S Schematic Diagram PRI 16 15 14 13 12 11 10 13 .050 (1.27) PRI 16 15 TYP. .645 (16.39) .622 (15.80) 24-Pin DIP Package: T-15200S & T-15201S Dimensions in Inches (mm) T-15201S Schematic Diagram 9 TYP. TYP. TYP. TYP. 11 12 SEC PRI 14 .016 (0.41) .010 (0.25) .035 (0.89) .015 (0.38) .505 (12.83) PRI 14 13 11 12 10 .285 (7.24) MAX. MAX. 9 .205 (5.21) MAX. 2 3 4 5 6 SEC 1 8 7 2 3 4 5 6 SEC SEC 100 BASE-T4 COMMON MODE CHOKE 7 8 SEC Electrical Specifications at 25o C Part Number Turns Ratio +3% OCL Min. ( µH ) LL max. ( µH ) DCRP max. (Ω) Cw/w max. ( pF ) Isolation (VRMS) F-1515 1 :1 36 0.2 0.35 15 500 TYP. TYP. .380 (9.65) .360 (9.14) Typical 3000 2000 Minimum 1000 0 10 20 40 60 80 100 Frequency ( MHz ) 200 300 )RU FRPSOHWH GHWDLOV LQFOXGLQJ GRZQORDGDEOH 3') FDWDORJV DQG GDWD VKHHWV SOHDVH YLVLW F-1515 Schematic Diagram Rhombus Industries Inc. .010 (0.25) .025 (0.64) 4000 F-1515: 16-Pin SMD package per T-15200S above. Specifications subject to change without notice. TYP. TYP. TYP. Impedance Ω (Min.) 2000 @ 30 Mhz 1500 @ 50 Mhz 1000 @ 70 Mhz .050 (1.27) .016 (0.41) Impedance ( Ohms ) 1 .015 (0.38) ZZZUKRPEXVLQGFRP For other values & Custom Designs, contact factory. www.rhombus-ind.com 100BAST2 - 2/02 15801 Chemical Lane, Huntington Beach, CA 92649-1595 Tel: (714) 898-0960 • Fax: (714) 896-0971