S553-5999-F2

10BASE-T LAN MAGNETICS Dual Isolation Transformer LM05510 • Transformer turns ratio RX 1CT : 1CT and TX 1CT : 2CT Utilizes standard surface mount packaging Meets all IEEE 802.3 performance requirements • Low profile, surface mount packaging rated to 225° C peak IR reflow temperature Operating temperature -40° to +85° C Minimum interwinding breakdown voltage of 1500 Vrms • • • • ELECTRICAL SPECIFICATIONS AT 25° C Leakage Inductance µH max Interwinding Capacitance pf max OCL µH min Part Number RX TX DCR Ω max RX TX 1 - 16 6 -11 TXIN TXO RXIN RXO S553-5999-F2 110 28 0.3 0.2 10 10 0.75 0.75 0.75 0.75 S553-5999-F3 110 28 0.3 0.2 10 10 0.75 0.75 0.75 0.75 SCHEMATIC S553-5999-F2 S553-5999-F3 15 1 RX 2 3 6 TX 7 8 1CT : 1CT 16 15 14 1 RX 2 3 1CT : 1CT 1CT : 2CT 11 10 6 16 14 11 9 1CT : 2CT 9 TX 7 8 10 ©2005 Bel Fuse Inc. Specifications subject to change without notice. 03.05 Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com page 1 10BASE-T LAN MAGNETICS LM05510 Dual Isolation Transformer MECHANICAL S553-5999-F2 S553-5999-F3 0.500 [12.70] max Suggested PCB Pad Layout 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 0.015 [0.38] 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] 4˚ nom Dimensions are in inches [millimeters]. Standard dimension tolerance is ±0.005 [0.13] unless otherwise noted. ©2005 Bel Fuse Inc. Specifications subject to change without notice. 03.05 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