TM02129

HIGH FREQUENCY MAGNETICS DS3/E3/STS-1 Dual Transformers • Optimized for line transceivers operating at E3, DS3 or STS-1 rates: 34.368 Mb/s, 44.736 Mb/s, 51.84 Mb/s Transmit transformer and receive transformer in one surface mount package Meets ITU-T G.703 return loss from -40° to +85° C from 860 kHz to 51.55 MHz UL 1950 approved: file number E150991 • Interwinding breakdown voltage: 1500 Vrms min • • • • Operating temperature range -40° to +85°C Meets IEC 695, 2-2 flammability requirements PWB Process Capability: standard printed wiring board assembly techniques, total-immersion cleaning Reliability testing: Shock, vibration, temperature cycling, temperature - humidity - bias TM02129 • • • ELECTRICAL SPECIFICATIONS at 25° C Turns Ratio ±2% Part Number Pri : Sec Coil A S554-6500-15 S554-6500-16 S554-6500-17 S554-6500-18 1:1 1:1 1 : 2CT 1:1 Coil B 1:1 1CT : 1CT 1:1 1 : 2CT Primary Inductance at 100 kHz 25° C µH min Coil A 80 80 80 80 Coil B 80 80 80 80 -40° C µH min Coil A 40 40 40 40 Coil B 40 40 40 40 Leakage Inductance at 1 MHz µH max Coil A 0.09 0.09 0.09 0.09 Coil B 0.09 0.10 0.09 0.09 Capacitance C w/w Return Loss at 1.72 MHz 75Ω Application1 25° C dB typ Coil A 25 25 25 25 Coil B 25 25 25 25 -40 to +85° C dB min Coil A 18 18 18 18 Coil B 18 18 18 18 pF max Coil A & B 10 10 10 10 1. Terminated in 75 Ω for 1 : 1 ratios and 300 Ω for 1 : 2 ratios SCHEMATICS S554-6500-15 S554-6500-16 Primary 1 Coil A 2 3 4 5 6 7 Coil B 8 1:1 Secondary 16 15 14 13 12 11 Primary 1 Coil A 2 3 4 5 1:1 Secondary 16 15 14 13 12 1CT : 1CT 6 Coil B 7 11 10 9 1:1 10 8 9 ©2002 Bel Fuse Inc. Specifications subject to change without notice. 02.02 Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com page 1 HIGH FREQUENCY MAGNETICS TM02129 DS3/E3/STS-1 Dual Transformers S554-6500-17 Secondary 1 Coil A 2 3 4 5 1:1 6 Coil B 7 8 2CT : 1 Primary 16 15 14 13 12 11 10 9 Primary 1 Coil A 2 3 4 5 1 : 2CT 6 Coil B 7 8 SCHEMATICS S554-6500-18 1:1 Secondary 16 15 14 13 12 11 10 9 MECHANICAL 0.485 [12.32] max Suggested PCB Pad Layout S554-6500-15 S554-6500-16 S554-6500-17 S554-6500-18 0.375 0.285 [9.53] [7.24] max max 0.425 [10.80] 0.050 [1.27] 0.018 ±0.002 [0.46 ±0.05] 0.225 [5.72] max 0.003 [0.08] min 0.050 [1.27] 0.025 [0.64] 0.070 [1.78] 0.004 [0.10] 0.350 ±0.010 [8.89 ±0.25] 0.008 - 0.012 [0.20 - 0.30] 0.035 [0.89] 6˚ nom Tape and Reel Packaging Dimensions are in inches [millimeters]. Standard dimension tolerance is ±0.005 [0.13] unless otherwise noted. 24 mm wide by 12 mm pitch; 13 inch OD, 4 inch ID 750 modules per reel, maximum Meets ANSI/EIA 481-2 Carrier Tape Standards - JEDEC SO Package ©2002 Bel Fuse Inc. Specifications subject to change without notice. 02.02 CORPORATE Bel Fuse Inc. 206 Van Vorst Street Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com FAR EAST Bel Fuse Ltd. 8F / 8 Luk Hop Street San Po Kong Kowloon, Hong Kong Tel 852-2328-5515 Fax 852-2352-3706 www.belfuse.com EUROPE Bel Fuse Europe Ltd. Preston Technology Management Centre Marsh Lane, Suite G7, Preston Lancashire, PR1 8UD, U.K. Tel 44-1772-556601 Fax 44-1772-888366 www.belfuse.com page 2