Impedance Matching Audio Transformer Turns Ratio ( + 3 % ) 1:1 MAX. Designed to match 10kΩ : 10kΩ PARAMETER MIN. TYP. UNITS Primary Inductance1 5.5 9.0 H 0.30 dB Pins 1-2. Frequency Response 300Hz to 3.5kHz Insertion Loss (At 1kHz) .80 Primary DC Resistance dB 330 ohms 430 ohms Pins 1-2 Secondary DC Resistance Schematic Diagram Secondary Primary 1 3 2 4 Pins 3-4 Isolation (Hi-Pot) 1500 VAC 0 mA DC Bias 1. Tested @ 1kHz & 100 mVRMS .785 (19.94) .620 (15.75) .725 (18.42) Physical Dimensions inches (mm) .187 (4.75) TYP. .042 (1.07) TYP. .374 (9.50) TYP. .016 (0.41) .420 (10.67) 2 1 Bottom View 4 3 RHOMBUS P/N: T-1196 CUST P/N: DATE: 01/26/99 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