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| ISDN MAGNETICS UPO Interface Transformers TM00208 * Operates as a pulse transformer at 384 Kbps in ISDN U interface applications Qualified per Bellcore TR-TSY-000357-1 * * Primary winding can withstand 70mA of direct current Minimum interwinding breakdown voltage of 1500 Vrms * ELECTRICAL SPECIFICATIONS at 25 C DCR max Interwinding Capacitance2 pF max With terminals 7 & 9 connected 60 Part Number Turns Ratio 2% Primary Inductance1 mH min Leakage Inductance2 H max Pri Sec 2718BD2 1CT : 1.25 2.5 15 3.6 3.4 2718BG2 1 2 1CT : 2 2.1 11.5 2.7 6.1 60 Measured at 1 kHz, 0.1 Vac Measured at 100 kHz, 0.01 Vac SCHEMATIC Compatible Transceiver ICs Part Number IC Mfr IC Part Number 10 1 2718BD2 Siemens PEB2095 7 CT 9 2718BG2 Siemens PEB2096 5 6 Primary Secondary (c)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 T2-19 ISDN MAGNETICS TM00208 UPO Interface Transformers MECHANICAL 2718BD2 2718BG2 0.56 [14.22] max 0.110 [2.79] 0.023 [0.584] Sq typ (Phosphor Bronze, Solder-Coated) 0.59 [14.99] max 0.175 [4.45] + +5 0.32 [8.13] max 6 7 8 9 10 + + 0.61 [15.49] max 0.100 [2.54] centers - 4 3 2 0.510 [12.95] +1 Terminal 1 Identifier 0.450 [11.43] Note: Unless otherwise specified, dimensions are nominal and in inches [millimeters]. (c)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 T2-20 |
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