2771J

ISDN MAGNETICS UPO Interface Transformer TM00209 • Qualified per Bellcore TR-TSY-000357-1 • Minimum interwinding breakdown voltage of 1500 Vrms ELECTRICAL SPECIFICATIONS at 25° C Part Number Turns Ratio ± 2% Primary Inductance* mH min Leakage Inductance µH max Pri DCR Ω max Interwinding Capacitance pF max Sec 2771J 1CT : 1.25 1.7 9.5 3.3 10.2 75 * Measured at 10 KHz, 0.1 Vac SCHEMATIC Compatible Transceiver ICs Part Number IC Mfr IC Part Number 2771J 8 1 2 7 3 2771J Siemens PEB2095 6 CT 5 Primary 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 T2-21 ISDN MAGNETICS TM00209 UPO Interface Transformer MECHANICAL 2771J 0.160 [4.06] ref 8 5 0.120 [3.05] ref 0.495 [12.57] max 0.430 [10.92] max Terminal 1 Identifier 1 0.590 [15.00] max 4 0.030 [0.76] 0.395 [10.03] max 0.100 [2.54] typ 0.024 [0.61] Component Center 8 0.255 [6.48] 1 0.120 [3.05] typ 0.045 [1.14] typ 7 6 5 2 3 4 0.008 [0.203] 2 places Suggested PCB Pad Layout Note: Unless otherwise specified, dimensions are nominal and in inches [millimeters]. ©2000 Bel Fuse Inc. Specifications subject to change without notice. 05.00 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 T2-22