Power Transformer Turns Ratio 1 : 2 : 2 : 0.833 (1-3):(9-10):(7-6):(4-5) Parameter Min. Typ. Max. Units Inductance (1-3) 102 132 171 µH Leakage Inductance 1.2 µH Interwinding Capacitance 35 pF DC Resistance (1-3) 85 mΩ DC Resistance (4-5) 200 mΩ DC Resistance (7-6) 400 mΩ DC Resistance (9-10) 420 mΩ Working Voltage 50 V Power Rating 17 W Current 300 mA Hi-Pot Pins 1-5 To 7-10 1500 SCHEMATIC 1 7 +15 V 2 3 6 4 9 5 10 Primary Pins 1-3 VRMS Temperature Range -55o to +125o C Operate Frequency 100 kHz 1.070 (27.18) REF. .900 (22.86) REF. 1 2 Top View .570 (14.48) MAX. .040 (1.02) TYP. 10 9 3 8 4 7 5 6 1.19 (30.23) .920 (23.37) MAX. .150 (3.81) TYP. .150 (3.81) .080 (2.03) .180 (4.57) .470 (11.94) MAX. .090 (2.29) TYP. Physical Dimensions in inches (mm) 1.10 (27.94) 1.04 (26.42) RHOMBUS P/N: T-1390 CUST P/N: DATE: 05/30/01 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