MSDSL Transformer Supplementary Insulation Requirements of IEC950 Turns Ratio (10-7) : (1-4) Shorted 2+3, 8+9 2 : 1 +1% Turns Ratio (1-3) : (2-4) 1 : 1 +1% Parameter Min. 1 Inductance 1-4 (shorted 2+3) Inductance 10-7 (shorted 8+9) Schematic Diagram 1 2 10 Typ. 7.0 28 Max. 13 52 Leakage Inductance 1-4 Shorted 2+3, 8+9, 10+7 15 Units mH mH µH Resistance pins (1-3) 0.46 ohms 3 8 Resistance pins (2-4) 0.46 ohms 2 9 Resistance pins (10-8) 1.10 ohms Resistance pins (9-7) 1.10 ohms 4 7 Isolation (Hi-Pot) PRI - SEC 2400 VRMS Insertion Loss at 100k Per IEEE method, (22.1 ohm load) Longitudinal Balance 20 - 200kHz Per ITU method (L->M) 55 0.20 dB 15 dB THD, Total Harmonic Distortion: 81 dB typ., 10kHz, 3.53Vrms, 22.1 ohm load, 100 ohm input ( shorted 2+3, 8+9). 1. Tested at 10 KHz & 100 mV 2. Tested at 100 KHz & 100 mV 10 9 8 7 6 .148 (3.75) .079 (2.0) .11 (2.8) 1 2 3 .148 (3.75) TYP. 4 .787 (20.0) 5 .039 (1.00) TYP. .1.09 (27.7) .854 (21.7) MAX. .81 (20.6) .385 (9.77) Suggested Solder Pad Layout .012 (0.30) TYP. .827 (21.0) .07 (1.80) Physical Dimensions inches (mm) RHOMBUS P/N: T-1022G CUST P/N: DATE: 02/17/98 Rhombus Industries Inc. Transformers & Magnetic Products FSCM No. 16714 NAME: SHEET: 1 of 1 15801 Chemical Lane, Huntington Beach, CA 92649 Phone: (714) 898-0960 FAX: (714) 896-0971