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| HIGH FREQUENCY MAGNETICS T1/E1 Dual Ratio Surface Mount Transformer * Operates at the T1 rate of 1.544 Mb/s and the E1 rate of 2.048 Mb/s Provides two ratios to handle both 75 and 120 lines Minimum Interwinding Breakdown Voltage of 1500 Vrms * * * * 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 TM00135 * * ELECTRICAL SPECIFICATIONS AT 25 C DCR Interwinding Capacitance pF max Leakage Inductance3 H max Turns Ratio 2% Part Number (4-1):(5-2) (4-1):(5-8)1 Inductance2 mH min max (4-1) (4-1) (5-2) (5-8)1 (4-1) : (5-2) 15 (4-1) : (5-8)1 23 (4-1)4 (4-1)5 Minimum Interwinding Breakdown Voltage Vrms 2771H 1 : 1.08 1 : 1.36 1.85 0.74 3.2 4.0 1 1.3 1500 1. connect 2 to 3 2. measured at 10 kHz, 0.1 Vac 3. measured at 100 kHz, 0.1 Vac 4. with (5-8) shorted and 2 & 3 connected 5. with (5-2) shorted SCHEMATIC 2771H 4 5 2 3 1 1 : 1.08 1 : 1.36 8 (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 T1-79 HIGH FREQUENCY MAGNETICS TM00135 T1/E1 Dual Ratio Surface Mount Transformer MECHANICAL 2771H 0.160 (11.68) 0.590 (14.99) MAX 87 65 0.120 (3.05) 0.495 0.430 (12.57)(10.92) MAX MAX 1234 TERMINAL 1 IDENTIFIER 0.395 (10.03) MAX 0.004 8 EDGES 0.23 (0.58) X 0.100 (2.54) FOOT (PHOSPHOR BRONZE, SOLDER COATED) 0.100 (2.54) TYP RECOMMENDED PCB PATTERN COMPONENT CENTER 0.255 (6.48) 0.120 (3.05) TYP 0.045 (1.14) TYP 0.008 (0.203) 2 PLACES 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 T1-80 |
Price & Availability of 2771H
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