PARAMETER UNITS TURNS RATIO 2 : 2 : 1 : 1 +2% Pins 1-2 : 3-4 : 5-6 : 7-8 1 1.3 Min. mH 2 1.6 Max. µH 3 25 Max. pF DCR Primary Pins 1-4 (short 2-3) 0.45 Max. Ω DCR Secondary pins 5-8 (short 6-7 0.3 Max. Inductance Leakage Inductance Interwinding Capacitance T-13807 T1/CEPT INTERFACE TRANSFORMER Schematic Diagram PRI Isolation (min) 1,2,3,4 to 5,6,7,8 1500 Min. SE C Ω VRMS 1) Tested @ 10 kHz and 100mV (Pins 1-4, short 2-3) 2) Tested @ 100 kHz and 100 mV (Pins 1-4, short 2-3 and short 5,6,7,8) 3) Tested @ 100 kHz and 100 mV (Pins 1 & 8 short 2,3 & 6-7) S1 S4 S2 S3 Physical Dimensions inches (mm) PIN POSITION GRID 0.100 (2.54) HOLES FOR BOBBIN PINS BOTTOM VIEW 1/5/96 Rhombus Industries Inc. Transformers & Magnetic Products 15801 Chemical Lane, Huntington Beach, CA 92649-1595 Phone: (714) 898-0960 z FAX: (714) 896-0971 www.rhombus-ind.com