HIGH FREQUENCY MAGNETICS T1/CEPT Dual Line Interface Transformers TM00131 • Pick and place compatible • Minimum interwinding breakdown voltage of 1500 Vrms • Small form factor to mimimize board space • Reference data sheet TM9905 for additional dual surface mount transformers • Low height profile ELECTRICAL SPECIFICATIONS at 25° C Primary Inductance mH min Turns Ratio ±5% Leakage Inductance µ H max Interwinding Capacitance pF max DCR Ω max Part Number Pri Coil A Coil B Coil A & B Coil A Coil B Sec Coil A & B Coil A Coil B Coil A Coil B S553-3855-02 1 : 1.15 CT 1 CT : 2 CT 1.2 0.6 0.8 30 0.70 0.70 0.70 1.00 S553-6500-36 1 CT : 1.4 CT 1 CT : 1.4 CT 1.2 0.6 0.6 30 0.35 0.35 0.45 0.45 S553-6500-39 1 CT : 2 CT 1 : 1.36 CT 1.2 0.6 06 30 0.35 0.70 0.70 0.40 S553-6500-41 1 CT : 1.15 CT 1 CT : 1.15 CT* 1.2 0.6 0.6 30 0.35 0.35 0.45 0.45 S553-6500-42 1 : 1.414 / 1: 1.75 1 : 1.414 2.0 0.8 0.8 50 1.0 1.0 1.2 1.2 S553-6500-45 1CT : 2.42CT 1CT : 2.42CT 1.2 0.6 0.6 40 0.70 0.70 1.0 1.0 * (-41) primary pins for Coil B are pins (6 - 8) SCHEMATICS S553-3855-02 Secondary 1 Coil A Coil B S553-6500-39 S553-6500-36 S553-6500-41 Primary 16 2 Primary 1 Secondary 16 Primary Secondary 1 16 2 15 2 15 3 14 3 14 3 14 6 11 6 11 6 11 7 10 7 10 8 9 Primary Secondary 8 Secondary 9 Primary ©2004 Bel Fuse Inc. 10 8 Primary 9 Secondary Specifications subject to change without notice. 09.04 Bel Fuse Inc. 198 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com T1-69 HIGH FREQUENCY MAGNETICS T1/CEPT Dual Line Interface Transformers TM00131 SCHEMATICS S553-6500-42 Primary 1 Coil A S553-6500-45 Secondary 16 Primary 1 2 3 14 6 11 Coil B 8 Secondary Coil A 9 Primary 16 2 15 3 14 6 11 7 10 8 Primary 9 Secondary 1 : 1.414 (1 - 3) : (14 - 16) 1 : 1.750 (2 - 3) : (14 - 16) MECHANICAL S553-3855-02 S553-6500-36 S553-6500-39 S553-6500-41 S553-6500-42 S553-6500-45 Secondary 0.500 [12.70] max Suggested PCB Pad Layout 0.375 0.285 [9.53] [7.24] max max 0.425 [10.80] 0.050 [1.27] 0.018 ±0.002 [0.46 ±0.05] 0.050 [1.27] 0.025 [0.64] 0.070 [1.78] 0.225 [5.72] max 0.015 [0.38] 0.350 ±0.010 [8.89 ±0.25] 0.008 - 0.012 [0.20 - 0.30] 0.035 [0.89] 4˚ nom Dimensions are in inches [millimeters]. Standard dimension tolerance is ±0.010 [0.25] unless otherwise noted. ©2004 Bel Fuse Inc. Specifications subject to change without notice. 09.04 CORPORATE FAR EAST EUROPE Bel Fuse Inc. 198 Van Vorst Street Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com 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 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 T1-70