Impedance Transformer Turns Ratio Turns Ratio Turns Ratio (Pin 2-6 : Pin 3-7) (Pin 3-7 : Pin 4-8) (Pin 2-1 : Pin 1-6) PARAMETER MIN. Primary Inductance (1) 1.60 : 1.70 1.95 : 2.05 0.95 : 1.05 MAX. 7.68 UNITS mH Schematic Diagram 8 6 1 2 3 µH 4 7 DC Resistance (Pin 1-6) 0.95 ohms 3 DC Resistance (Pin 2-1) 1.0 ohms DC Resistance (Pin 3-7) 1.8 ohms DC Resistance (Pin 4-8) 0.75 ohms Pins 3-7 (2) Leakage Inductance Pins 3-7 Pins 2-6 Shorted Isolation (Hi-Pot) Winding to Winding 500 VRMS Isolation (Hi-Pot) Winding to Core 500 VRMS 1. Tested at 10 KHz & 1 V 2. Tested at 100 KHz & 1 V Physical Dimensions inches (mm) .492 (12.5) .465 MAX. (11.8) MAX. .432 (10.97) MAX. .594 (15.10) 1 2 .469 (11.9) MAX. .413 (10.5) .025 (0.64) .575 (14.6) .567 (14.4) .098 (2.50) 5 Suggested Pad Layout 6 3 7 4 8 .100 (2.54) TYP. .050 (1.27) TYP. .100 (2.54) TYP. .028 (0.70) RHOMBUS P/N: T-1231G CUST P/N: DATE: 4/19/99 Rhombus Industries Inc. Transformers & Magnetic Products NAME: SHEET: 1 of 1 15801 Chemical Lane, Huntington Beach, CA 92649 Phone: (714) 898-0960 FAX: (714) 896-0971 www.rhombus-ind.com