2741P2

HIGH FREQUENCY MAGNETICS Specialty Through Hole Shielded Transformer TM00105 • Operates as high frequency pulse transformer or as 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, 2779A ELECTRICAL SPECIFICATIONS AT 25° C DCR Ω max Leakage Inductance2 µH max Turns Ratio ±1% Part Number (3-7) : (2-1)1 Inductance2 µH Min Interwinding Capacitance pF max (2-5) (3-8)(4-7)(2-1)3 (3-7)1 (3-8) to 64 (4-7) to 64 (3-7) : (2-1)5 Minimum Interwinding Breakdown Voltage Vrms 2741P2 1 CT : 25 CT 300 1.92 0.2 5 5 5 500 1. connect 4 to 8 2. measured at 100kHz, 0.02 Vac 3. connect 4 to 8 & 2 to 7 4. with (2-1) grounded 5. with 6 grounded and 4 connected to 8 SCHEMATIC 2741P2 3 8 CT 4 7 6 1 : 25 2 5 CT 1 ©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 T1-11 HIGH FREQUENCY MAGNETICS TM00105 Specialty Through Hole Shielded Transformer MECHANICAL 2741P2 0.56 (14.22) MAX 0.46 (11.68) MAX TERMINAL 1 IDENTIFIER 0.35 (8.89) MAX 0.110 (2.79) ±0.010 (0.25) 0.100 (2.54) 0.023 (0.584) SQ TYP (PHOSPHOR BRONZE, SOLDER COATED) 1234 0.250 (6.35) 876 5 Unless otherwise specified, dimensions are nominal and in inches (millimeters). ©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 T1-12