ISDN MAGNETICS Surface Mount Common Mode Choke • Designed to filter high-frequency EMI noise from 1 MHz to 200 MHz TM00202 • Optimized for ISDN S/T-interface communications • Minimum interwinding breakdown voltage of 500 Vrms ELECTRICAL SPECIFICATIONS at 25° C Part Number Primary Inductance µH min Leakage Inductance nH max DCR Ω max Interwinding Capacitance pF max 1793A 22.5 250.0 0.35 17 SCHEMATIC TYPICAL IMPEDANCE vs. FREQUENCY 8 2 3 7 6 4 5 2200 IMPEDANCE ( ) 1 1100 0 100 kHz 1 MHz 10 MHz 100 MHz FREQUENCY (MHz) ©2000 Bel Fuse Inc. Specifications subject to change without notice. 05.00 Bel Fuse Inc. 198 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com T2-5 ISDN MAGNETICS Surface Mount Common Mode Choke TM00202 MECHANICAL 4 3 0.100 [2.54] 2 1 0.590 [15.0] 1793A 5 6 7 8 0.485 [12.31] max 0.360 [9.14] 0.100 [2.54] 0.210 [5.33] max 0.060 [1.52] Part outline shown for clarity 0.060 [1.52] Note: Unless otherwise specified, dimensions are nominal and in inches [millimeters]. 0.620 [15.75] Suggested PCB Pad Layout ©2000 Bel Fuse Inc. Specifications subject to change without notice. 05.00 CORPORATE FAR EAST EUROPE Bel Fuse Inc. 198 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 T2-6