2745AL2

HIGH FREQUENCY MAGNETICS T1/E1 Through Hole Hardened Transformer TM00127 • • Designed to operate at the DS1 rate of 1.544 Mbits/s Winding (4-6) can handle a 6 A current surge for 1 second with no damage 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 SPECIFICATIONS AT 25° C Nominal Turns Ratio ± 2% (3-1):(4-6) 2745AL2 1 : 1.14 CT Inductance1 mH Min (3-1) 1.25 (3-1) 0.85 DCR Ω max (4-6) 0.40 Leakage Inductance µH max (3-1) 1.8 Interwinding Capacitance pF max (3-1) to (4-6) 14 Minimum Interwinding Breakdown Voltage Vrms 1000 Part Number 1. measured at 10 kHz, 0.1 Vac SCHEMATIC 2745AL2 3 4 5 CT 1 6 1 : 1.14 CT ©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 T1-61 HIGH FREQUENCY MAGNETICS TM00127 T1/E1 Through Hole Hardened Transformer MECHANICAL 2745AL2 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) 0.023 (0.584) SQ TYP (PHOSPHOR BRONZE, SOLDER COATED) 0.150 (3.81) 1 2 3 0.250 (6.35) 6 5 4 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 T1-62