S554-5999-03

CABLE MODEM MAGNETICS Wideband RF Transformers • Optimized for use in the upstream data path within cable modem applications Designed for use with a variety of high frequency drivers • • Excellent insertion loss and return loss characteristics Operating temperature 0° to 70° C Storage temperature -40° to +100° C Minimum interwinding breakdown voltage of 1500 Vrms • • • ELECTRICAL SPECIFICATIONS at 25° C DCR Ω max Turns Ratio ±3% Part Number Pri : Sec Insertion Loss dB max Return Loss dB min Primary Inductance µH min Pri Hipot Vrms min Sec 1MHz to 250MHz 1.5 5MHz to 65MHz 0.5 30MHz to 60MHz 18 30 S554-5999-03 1 : 2CT 0.250 0.500 1500 S554-5999-06 1 : 2CT 1.5 0.5 18 30 0.300 0.750 1500 SCHEMATIC S554-5999-03 S554-5999-06 1 1 : 2CT 6 5 3 4 ©2000 Bel Fuse Inc. Specifications subject to change without notice. 12.00 Bel Fuse Inc. 198 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com CABLE MODEM MAGNETICS Wideband RF Transformers MECHANICAL S554-5999-03 S554-5999-06 0.300 [7.62] max 0.100 [2.54] 0.375 [9.52] max 0.285 [7.24] max 0.425 [10.80] 0.070 [1.78] 0.018 ±0.002 [0.46 ±0.05] 0.100 [2.54] pitch 0.003 [0.08] min 0.030 [0.76] Suggested PCB Pad Layout 0.012 [0.30] max 0.225 [5.72] max 4˚ nom 0.004 [0.10] 0.200 [5.08] 0.035 [0.88] Dimensions are in inches [millimeters]. Standard dimension tolerance is ±0.005 [0.13] unless otherwise noted. ©2000 Bel Fuse Inc. Specifications subject to change without notice. 12.00 CORPORATE Bel Fuse Inc. 198 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