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| HIGH FREQUENCY MAGNETICS Specialty Surface Mount Shielded Transformer TM00107 * Operates as a high frequency pulse transformer or as a high frequency analog transformer in various telecom circuits requiring very high voltage step-up ratio Interwinding Electrostatic Shield provides low capacitance and high EMI suppression * * * 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 * * * Electrical equivalents: 2664F, 2741P2, 2779A ELECTRICAL SPECIFICATIONS AT 25 C Nominal Turns Ratio 1% (3-7) : (2-1) 2779A 1 Part Number Inductance2 H min (2-5) 300 DCR max (3-8) (4-7) (2-1)3 1.92 Leakage Inductance 2 H max (3-7)1 0.20 Interwinding Capacitance4, 5, 6 pF max Minimum Interwinding Breakdown Voltage Vrms 500 1 CT : 25 CT 5 1. connect 4 to 8 2. measured at 100 kHz, 0.02 Vac 3. connect 4 to 8 & 2 to 7 4. (3-8) to 6 with (2-1) grounded 5. (4-7) to 6 with (2-1) grounded 6. (3-7) to (2-1) with 6 grounded and 4 connected to 8 SCHEMATIC 2779A 3 8 CT 4 7 6 1 : 25 2 5 CT 1 (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 T1-15 HIGH FREQUENCY MAGNETICS TM00107 Specialty Surface Mount Shielded Transformer MECHANICAL 2779A 8 7 6 5 8 TERMINAL 1 IDENTIFIER 1 0.350 (8.89) MAX 0.004 7 6 5 0.256 (6.50) 2 3 4 0.160 (4.06) 0.050 (1.27) 0.100 (2.54) 0.100 1 2 3 4 1 2 3 4 8 EDGES 0.490 (12.45) MAX 0.430 (10.92) MAX 0.500 (12.7) MAX 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 T1-16 |
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