INTEGRATED CONNECTOR MODULES 10/100Base-TX Low Profile belMag™ BM01818 • Single port shielded RJ-45 connector with integrated 10/100 magnetics • Complies with IEEE standards and all 10/100 Ethernet specifications including 350µH with 8mA DC bias • Compatible with a variety of 10/100 transceiver ICs • Integrated design conserves valuable board space • Operating temperature 0° to +70° C • Minimum interwinding breakdown voltage of 1500 Vrms • Storage temperature -40° to +85° C • Adaptable, modular design provides higher reliability • Low profile package for space saving designs • Reduced pin count for improved crosstalk and optimum PCB trace routing ELECTRICAL SPECIFICATIONS AT 25° C Part Number L811-1X1T-03 Insertion Loss dB max Common to Differential Mode Rejection dB min Return Loss dB min 1MHz to 100MHz 1MHz to 30MHz 30MHz to 60MHz 60MHz to 80MHz -1.0 -18 18 - 20 log (f/30MHz) -12 Common to Common Mode Rejection dB min 100kHz to 100MHz 40 30 Crosstalk dB min 1MHz 30MHz 60MHz 100MHz -65 -45 -37 -35 SCHEMATIC L811-1X1T-03 RJ45 TCT 1 1CT : 1 1 TX+ 2 TX- TD+ 2 TD- 3 Available Options • Various transformer turns ratios RD+ 4 RD- 1CT : 1 3 RX+ 4 5 6 RX- 5 RCT 6 • Various high voltage capacitor values 7 8 75Ω x4 1000pF 2kV Shield ©2001 Bel Fuse Inc. Specifications subject to change without notice. 08.01 Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com page 1 INTEGRATED CONNECTOR MODULES 10/100Base-TX Low Profile belMag™ BM01818 MECHANICAL L811-1X1T-03 0.765 ±0.020 [19.43 ±0.51] 0.950 [24.13] max 0.192 [4.88] 0.661 [16.79] max Pin 1 0.485 [12.32] max PAD LAYOUT 0.555 ±0.010 [14.10 ±0.25] 0.125 [3.18] 0.305 [7.75] 0.130 [3.30] 0.125 [3.18] 0.565 [14.35] 0.635 [16.13] 0.0675 [1.71] Notes 0.500 [12.70] Plastic Housing Contacts Pins Solderability Metal Shield Ø0.062 [Ø1.57] 2 places 0.565 [14.35] Thermoplastic, flammability rating UL 94V-0 50 micro-inch hard gold plating Tin-coated copper wire, DIA 0.018" [0.46] Per MIL Std. 202, Method 208 Tin lead plated copper alloy Ø0.128 [Ø3.25] 2 places 0.440 [11.18] 6 5 4 3 2 1 0.050 [1.27] Ø0.035 [Ø0.89] 6 places 0.080 [2.03] Suggested Panel Opening 0.691 [17.55] Suggested PCB Pad Layout Component Side View 0.080 [2.03] 0.505 [12.83] ©2001 Bel Fuse Inc. Specifications subject to change without notice. 08.01 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 page 2