10BASE-T LAN MAGNETICS Quad Transformer Modules LM00500 • Transformer turns ratio RX 1 : 1 and TX 1CT : 1CT • Low profile, surface mount packaging rated to 225° C peak IR reflow temperature • Filterless quad, four-port designs with common footprint and pinouts • Quad design offers best space, performance and cost efficiency • Operating temperature 0° to 70° C • Minimum interwinding breakdown voltage of 1500 Vrms • Optimized for use with stackable RJ-45 connectors • Designs utilize standard 40 pin SMD packaging ELECTRICAL SPECIFICATIONS AT 25° C Part Number Insertion Loss dB max Return Loss dB min 1MHz to 10MHz 5MHz to 10MHz Common to Common Mode Rejection dB min 5MHz to 10MHz 50MHz Crosstalk dB min 100MHz 200MHz 1MHz to 10MHz 5MHz to 10MHz Transformers Only S553-5999-18 -1.0 -20 -50 -35 -25 -20 --- -50 S553-5999-26 -1.0 -18 --- --- --- --- -40 --- S553-5999-53 -1.0 -18 -40 --- -30 --- -40 --- Transformers and Common Mode Chokes S553-5999-24 -1.0 -20 -50 -35 -25 -20 --- -50 S553-5999-32 -1.0 -18 -40 --- -30 --- -40 --- S553-5999-39 -1.0 -20 -50 -35 -25 -20 --- -50 S553-5999-76 -1.0 -18 -40 --- -30 --- -40 --- ©2001 Bel Fuse Inc. Specifications subject to change without notice. 09.01 Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com L5-1 10BASE-T LAN MAGNETICS Quad Transformer Modules LM00500 SCHEMATICS S553-5999-26 S553-5999-18 1 1:1 40 40 RX1 2 3 TX1 4 5 6 TX2 7 8 RX2 1:1 1 RX1 9 1CT : 1CT 1CT : 1CT 1:1 2 38 37 36 3 TX1 4 5 35 34 33 RX2 1:1 39 1CT : 1CT 1:1 6 7 32 10 11 39 31 8 TX2 9 10 30 11 38 37 36 35 34 1CT : 1CT 1:1 33 32 31 30 RX3 RX3 29 12 13 TX3 14 15 16 TX4 17 18 19 1CT : 1CT 1CT : 1CT 1:1 28 27 26 13 TX3 14 15 25 24 23 RX4 1CT : 1CT 1:1 16 1CT : 1CT 18 TX4 19 20 22 21 28 27 26 25 24 17 RX4 20 29 12 23 22 21 S553-5999-53 1 1:1 40 RX1 39 2 3 1CT : 1CT 38 TX1 4 5 6 7 37 36 1CT : 1CT 35 34 1:1 33 32 1:1 31 30 TX2 8 9 RX2 10 11 RX3 12 13 1CT : 1CT 29 28 TX3 14 15 16 17 1CT : 1CT TX4 18 19 1:1 27 26 25 24 23 22 RX4 20 21 ©2001 Bel Fuse Inc. Specifications subject to change without notice. 09.01 Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com L5-2 10BASE-T LAN MAGNETICS Quad Transformer Modules LM00500 SCHEMATICS S553-5999-24 S553-5999-39 1 S553-5999-32 1:1 1:1 1 40 RX1 2 2 3 TX1 4 5 6 TX2 7 8 9 RX2 10 11 RX3 12 13 TX3 14 15 16 TX4 17 18 19 RX4 20 39 38 37 36 35 34 33 32 1CT : 1CT 1CT : 1CT 1:1 TX1 39 1CT : 1CT 3 4 5 1:1 6 38 37 36 35 RX2 34 7 TX2 31 30 1:1 40 RX1 1CT : 1CT 8 9 10 1:1 11 33 32 31 30 RX3 29 28 27 26 25 24 23 22 1CT : 1CT 1CT : 1CT 1:1 12 29 1CT : 1CT 13 TX3 14 15 1:1 16 28 27 26 25 RX4 24 17 1CT : 1CT 18 TX4 19 20 21 23 22 21 S553-5999-76 TX1 1 2 3 4 1CT : 1CT 1:1 40 39 38 37 RX1 5 TX2 6 7 8 9 36 1CT : 1CT 1:1 35 34 33 32 RX2 31 10 11 TX3 12 13 14 1CT : 1CT 1:1 RX3 19 27 26 15 16 TX4 17 18 30 29 28 1CT : 1CT 1:1 25 24 23 22 RX4 20 21 ©2001 Bel Fuse Inc. Specifications subject to change without notice. 09.01 Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com L5-3 10BASE-T LAN MAGNETICS Quad Transformer Modules LM00500 MECHANICAL S553-5999-18 S553-5999-24 S553-5999-26 S553-5999-32 S553-5999-39 S553-5999-53 S553-5999-76 1.100 [27.94] max 0.070 [1.78] ref 0.050 [1.27] 0.645 [16.38] 0.480 [12.19] 0.050 [1.27] 0.212 [5.38] ref 0.020 ±0.002 [0.51 ±0.05] 0.070 [1.78] R 0.015 [0.39] 0.030 [0.77] Suggested PCB Pad Layout R 0.005 [0.13] 0.225 [5.72] max 0.950 [24.13] 0.035 [0.89] 0.004 [0.10] 0.600 [15.24] 0.005 [0.13] min 0˚- 5˚ Dimensions are in inches [millimeters]. Standard dimension tolerance is ±0.005 [0.13] unless otherwise noted. ©2001 Bel Fuse Inc. Specifications subject to change without notice. 09.01 CORPORATE FAR EAST EUROPE Bel Fuse Inc. 206 Van Vorst Street Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com 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 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 L5-4