10BASE-T LAN MAGNETICS Dual Transformer Modules LM00503 • Dual designs for two-port configurations maximize space and cost efficiencies • Low profile, surface mount packaging rated to 225° C peak IR reflow temperature • S556-5999-30 includes inductors for use with additional differential filtering • Operating temperature 0° to 70° C • Minimum interwinding breakdown voltage of 1500 Vrms ELECTRICAL SPECIFICATIONS AT 25° C Turns Ratio ±2% Insertion Loss dB max Return Loss dB min Part Number Common to Common Mode Rejection dB min Crosstalk dB min TX RX 1MHz to 10MHz 5MHz to 10MHz 10MHz to 30MHz 30MHz to 100MHz 1MHz to 10MHz S553-3873-17 1: 2 1:1 -0.8 -20 --- --- -40 S553-5841-14 1CT : 1.41 1:1 -1.0 -15 -40 -30 -35 S556-5841-09 1CT : 1 1CT : 1 -1.0 -20 -40 -30 -40 S556-5999-30 1:2 1:1 -0.5 -20 --- --- -40 SCHEMATICS S553-3873-17 1 1:1 16 RX1 2 3 1:2 15 14 TX1 13 4 5 1:2 12 TX2 11 6 7 1:1 10 RX2 8 9 ©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 L5-11 10BASE-T LAN MAGNETICS Dual Transformer Modules LM00503 SCHEMATICS S553-5841-14 1 TX1 2 3 4 RX1 5 1CT : 1.41 1:1 20 19 18 17 16 15 6 TX2 7 8 9 RX2 1CT : 1.41 1:1 10 14 13 12 11 S556-5841-09 1 1CT : 1 20 TX1 19 2 3 4 1CT : 1 RX1 17 5 6 18 1CT : 1 14 TX2 13 7 8 RX2 9 10 1CT : 1 12 11 ©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 L5-12 10BASE-T LAN MAGNETICS Dual Transformer Modules LM00503 SCHEMATICS S556-5999-30 1:1 1 16 RX1 15 2 1:2 3 14 TX1 4 13 1:2 5 12 TX2 11 6 1:1 7 10 RX2 8 9 MECHANICALS S553-3873-17 S556-5999-30 0.500 [12.70] max Suggested PCB Pad Layout 0.375 0.285 [9.53] [7.24] max max 0.018 ±0.002 [0.46 ±0.05] 0.425 [10.80] 0.050 [1.27] 0.050 [1.27] 0.025 [0.64] 0.070 [1.78] 0.225 [5.72] max 0.004 [0.10] 0.015 [0.38] 0.350 ±0.010 [8.89 ±0.25] 0.008 - 0.012 [0.20 - 0.30] 0.035 [0.89] 4˚ nom 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 Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com L5-13 10BASE-T LAN MAGNETICS Dual Transformer Modules LM00503 MECHANICALS S553-5841-14 S556-5841-09 0.600 [15.24] 0.030 [0.76] 0.500 0.610 [12.70] [15.49] 0.020 ±0.002 [0.51 ±0.05] 0.655 [16.64] 0.050 [1.27] Suggested PCB Pad Layout 0.050 [1.27] pitch 0.320 [8.13] 0.070 [1.78] 0.012 [0.30] typ 0˚- 5˚ 0.004 [0.10] 0.450 [11.43] 0.010 - 0.015 [0.25 - 0.38] 2 x 0.035 [0.89] 2 x 0.055 [1.40] Dimensions are in inches [millimeters]. Standard dimension tolerance is ±0.010 [0.25] 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 L5-14