S553-2940-02_1 BEL | Alldatasheet

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Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com 10BASE-T LAN MAGNETICS ©2001 Bel Fuse Inc. Specifications subject to change without notice. 09.01 LM00501Quad Transformer Modules ELECTRICAL SPECIFICATIONS AT 25° C

  • Transformer turns ratio RX 1 : 1 and TX 1CT : 1.41CT
  • Filterless quad, four-port designs with common footprint and pinouts
  • Optimized for use with stackable RJ-45 connectors
  • Designs utilize standard 40 pin SMD packaging
  • Low profile, surface mount packaging rated to 225° C peak IR reflow temperature
  • Quad design offers best space, performance and cost efficiency
  • Operating temperature 0° to 70° C
  • Minimum interwinding breakdown voltage of 1500 Vrms rebmuNtraP LCO ecnatcudnI nimHµ ssoLnoitresnI xamBd ssoLnruteR nimBd edoMnommoCotnommoC noitcejeR nimBd klatssorC nimBd zHM01otzHM1 zHM01otzHM1 zHM03otzHM01 zHM001 zHM01otzHM1 ylnOsremrofsnarT sekohCedoMnommoCdnasremrofsnarT 10-0492-355S0 010 .1-8 1-0 4-0 3-0 4- 30-0492-355S0 010 .1-8 1-0 4-0 3-0 4- 40-0492-355S0 010 .1-8 1-0 4-0 3-0 4- 80-0492-355S0 010 .1-8 1-0 4-0 3-0 4- 90-0492-355S0 010 .1-8 1-0 4-0 3-0 4- 83-9995-355S0 010 .1-8 1-0 4-0 3-0 4- L5-5

Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com ©2001 Bel Fuse Inc. Specifications subject to change without notice. 09.01 10BASE-T LAN MAGNETICS LM00501 Quad Transformer Modules SCHEMATICS S553-2940-03 S553-2940-02 RX1 TX1 TX2 RX2 RX3 TX3 TX4 RX4 1CT : 1.41CT 1 : 1 1CT : 1.41CT 1 : 1 1 : 1 1 : 1 1CT : 1.41CT 1CT : 1.41CT 1CT : 1.41CT 20 21 RX1 TX1 TX2 RX2 RX3 TX3 TX4 RX4 1 : 1 1CT : 1.41CT 1 : 1 1 : 1 1 : 1 1CT : 1.41CT 1CT : 1.41CT S553-2940-01 RX1 TX1 TX2 RX2 RX3 TX3 TX4 RX4 1CT : 1.41CT 1 : 1 1CT : 1.41CT 1CT : 1.41CT 1CT : 1.41CT 1 : 1 1 : 1 1 : 1 S553-5999-54 1 : 1 1CT : 1.41CT 1CT : 1.41CT 1 : 1 1 : 1 1CT : 1.41CT 1CT : 1.41CT 1 : 1 20 21 RX1 TX1 TX2 RX2 RX3 TX3 TX4 RX4 L5-6

Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com 10BASE-T LAN MAGNETICS ©2001 Bel Fuse Inc. Specifications subject to change without notice. 09.01 LM00501Quad Transformer Modules SCHEMATICS S553-2940-08 S553-5999-38 1 : 1 1CT : 1.41CT 20 21 RX1 TX1 TX2 RX2 RX3 TX3 TX4 RX4 1CT : 1.41CT 1CT : 1.41CT 1CT : 1.41CT 1 : 1 1 : 1 1 : 1 1 : 1 1CT : 1.41CT1 20 21 RX1 TX1 TX2 RX2 RX3 TX3 TX4 RX4 1CT : 1.41CT 1CT : 1.41CT 1CT : 1.41CT 1 : 1 1 : 1 1 : 1 S553-2940-04 1CT : 1.41CT 20 21 RX1 TX1 TX2 RX2 RX3 TX3 TX4 RX4 1 : 1 1CT : 1.41CT 1CT : 1.41CT 1CT : 1.41CT 1 : 1 1 : 1 1 : 1 1 : 1 1CT : 1.41CT 20 21 RX1 TX1 TX2 RX2 RX3 TX3 TX4 RX4 1CT : 1.41CT 1CT : 1.41CT 1CT : 1.41CT 1 : 1 1 : 1 1 : 1 S553-2940-09 L5-7

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 10BASE-T LAN MAGNETICS ©2001 Bel Fuse Inc. Specifications subject to change without notice. 09.01 LM00501 Quad Transformer Modules MECHANICAL S553-2940-01 S553-2940-02 S553-2940-03 S553-2940-04 S553-2940-08 S553-2940-09 S553-5999-38 S553-5999-54 0.480 [12.19] 0.070 [1.78] ref 1.100 [27.94] max 0.050 [1.27] 0.950 [24.13] 0.212 [5.38] ref 0.225 [5.72] max 0.035 [0.89] 0.005 [0.13] m in 0˚- 5˚ 0.020 ±0.002 [0.51 ±0.05] R 0.005 [0.13] R 0.015 [0.39] 0.070 [1.78] 0.050 [1.27] 0.030 [0.77] 0.645 [16.38] Suggested PCB Pad Layout D im ensions are in inches [m illim eters]. Standard dim ension tolerance is ±0.005 [0.13] unless otherw ise noted. 0.600 [15.24] 0.004 [0.10] L5-8