2776A

ISDN MAGNETICS Single S Interface Transformer TM99AA • Approved for use with Lucent Technologies chip sets for • S/T interface European ISDN applications UL, TUV and VDE approved • Meets requirements for pulse template and impedance template according to ITU-T (CCITT I.430) Minimum interwinding breakdown voltage of 3000 Vrms • ELECTRICALS at 25° C DCR Ω max Part Number Turns Ratio ± 3& Primary Inductance* mH min Leakage Inductance µH max Pri Interwinding Capacitance pF max Sec Distributed Capacitance pF max 2776A 1 : 2.5 22.0 5.0 1.55 8.75 100 100 * Measured at 1 kHz, 0.1 Vac SCHEMATIC Compatible Transceiver ICs Part Number IC Mfr IC Part Number T7250C T7256 T7234 1 8 3 CT 2 6 4 Primary Secondary 2776A Lucent ©1999 Bel Fuse Inc. Specifications subject to change without notice. Bel Fuse Inc. 198 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com ISDN MAGNETICS TM99AA Single S Interface Transformer MECHANICAL 1.150 [29.21] max 5 4 3 2 1 Terminal 1 ID 2776A 0.680 [17.27] max 6 7 8 0.540 [13.72] max 0.110± 0.010 [2.79± 0.25] 0.800 [20.32] 8 Terminals 0.023 [0.58] Square 0.150 [3.81] Note: Unless otherwise specified, dimensions are nominal and in inches [millimeters]. ©1999 Bel Fuse Inc. Specifications subject to change without notice. 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 F23, Preston Lancashire, PR1 8UD, U.K. Tel 44-1772-556601 Fax 44-1772-888366 www.belfuse.com