ISDN MAGNETICS Dual S Interface Transformer • Consists of two identical transformer assemblies mounted in a molded 16-pin DIP terminal header • UL and CSA approved TM00201 • Minimum interwinding breakdown voltage of 2400 Vrms • Qualified per Bellcore TR-TSY-000357-1 ELECTRICAL SPECIFICATIONS at 25° C Part Number 2768A Turns Ratio ± 2% 1 : 2.5 Primary Inductance mH min 22.0 DCR Ω max Leakage Inductance µH max 4.0 Pri Sec 2.3 5.8 Interwinding Capacitance pF max Distributed Parallel Capacitance pF max 100 100 SCHEMATIC 2768A Compatible Transceiver ICs IC Mfr IC Part Number Lucent T7234 T7250C T7254 T7256 T7259 1 16 2 CT 3 4 13 5 12 6 CT 7 8 Primary 9 Secondary ©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 T2-3 ISDN MAGNETICS Dual S Interface Transformer TM00201 MECHANICAL 2768A 0.930 [23.62] max 0.510 [12.95] max 0.110 [2.79] 0.100 [2.54] 0.110 [2.79] Terminal 1 Identifier 1 2 3 4 5 6 7 8 0.495 [12.57] max 0.400 [10.16] 16 15 14 13 12 11 10 9 Terminals 0.020 sq. Note: Unless otherwise specified, dimensions [0.508] are nominal and in inches [millimeters]. ©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 T2-4