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| HIGH FREQUENCY MAGNETICS T1/E1 Through Hole Transformer TM00115 * Operates as a line-interface pulse transformer in DS1 and CEPT applications Winding (3-2) (2-1) is highly balanced * * Operating temperature range: -40 C to +85 C Meets IEC 695, 2-2 flammability requirements PWB Process Capability: standard printed wiring board assembly techniques, total-immersion cleaning Reliability testing: Shock, vibration, temperature cycling, temperature - humidity - bias * * * Designed for automatic machine placement into printed wiring boards * * Recommended replacement is 2745AF2 ELECTRICAL SPECIFICATIONS AT 25 C Turns Ratio 2% (3-1) : (4-6) 2745B 1CT : 2 CT Inductance1 mH min (3-1) 3.5 (3-1) 4.9 DCR Leakage Inductance 2 H max (4-6) 10.2 (3-1) 7.0 Interwinding Capacitance pF typ (3-1) and (4-6) 110 MInimum Interwinding Breakdown Voltage Vrms 850 Part Number max 1. measured at 10 kHz, 0.1 V 2. measured at 100 kHz, with (4-6) shorted SCHEMATIC 2745B 3 CT 2 1 1 CT : 2 CT 4 5 CT 6 (c)2000 Bel Fuse Inc. Specifications subject to change without notice. 09.00 Bel Fuse Inc. 198 Van Vorst Street, Jersey City, NJ 07302 * Tel 201-432-0463 * Fax 201-432-9542 * www.belfuse.com T1-35 HIGH FREQUENCY MAGNETICS TM00115 T1/E1 Through Hole Transformer MECHANICAL 2745B 0.56 (14.22) MAX 0.46 (11.68) MAX TERMINAL 1 IDENTIFIER 0.35 (8.89) MAX 0.155 (3.94) 0.150 (3.81) 1 0.250 (6.35) 6 5 4 2 3 0.023 (0.584) SQ TYP (PHOSPHOR BRONZE, SOLDER COATED) Unless otherwise specified, dimensions are nominal and in inches (millimeters). (c)2000 Bel Fuse Inc. Specifications subject to change without notice. 09.00 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 T1-36 |
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