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| ISDN MAGNETICS UPO Interface Transformer TM9939 * * Qualified per Bellcore TR-TSY-000357-1 Approved by UL and CSA * Minimum interwinding breakdown voltage of 1500 Vrms ELECTRICAL SPECIFICATIONS at 25 C DCR max Part Number Turns Ratio 2% Primary Inductance mH min Leakage Inductance H max Pri Interwinding Capacitance pF max Sec 2805A 1.0 : 1.25 1.70 12.0 3.91 3.00 90 SCHEMATIC Compatible Transceiver ICs 2805A IC Mfr IC Part Number 8 7 6 5 Primary 1 2 3 4 Secondary Siemens PEB2095 (c)1999 Bel Fuse Inc. Specifications subject to change without notice. 09.99 Bel Fuse Inc. 198 Van Vorst Street, Jersey City, NJ 07302 * Tel 201-432-0463 * Fax 201-432-9542 * www.belfuse.com T330 ISDN MAGNETICS TM9939 UPO Interface Transformer MECHANICAL 2805A 0.450 [11.43] max Terminal 0.020 sq. [0.508] 0.125 0.015 [3.17 0.38] 0.200 [5.08] Notch locates terminal #1 0.750 [19.05] max 1 0.750 [19.05] max 4 0.600 [15.24] 8 5 Note: Unless otherwise specified, dimensions are nominal and in inches [millimeters]. (c)1999 Bel Fuse Inc. Specifications subject to change without notice. 09.99 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 T331 |
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