PARAMETER UNITS Turns Ratio AUDIO Transformer 600Ω Part Number T-1487 1:1 + 15% Ω Ω Primary DC Resistance (1-4) 55 +10% Ω Secondary DC Resistance (5-8) 43 +10% Ω Inductance (1-4) @1KHz, 0.1 Vrms 320 Min mH 1 Max dB Impedance @1 KHz -1 Vrms pin 5-8 600 pin 1-4 600 1 Insertion Loss @ 1KHz - 1Vrms Return loss pins 5-8 With 600 Ω load @ 300 Hz @1 KHz @ 3400 Hz 10 Min 15 Min 18 Min Schematic Diagram 1 6 3 4 dB dB dB FREQUENCY RESPONSE Isolation (HI-POT) 1-5 (@ 1500 VAC, 1mA, minute) 1500 VAC 1.5 1 Response ( dB ) Pins 5-8 with 600Ω load Physical Dimensions in inches (mm) .375 (9.53) MAX. .465 (11.81) MAX. 1.0 0.5 -0.0 -0.5 -1.0 -1.5 .410 (10.41) MAX. -2.0 600 1000 Frequency ( Hz ) 4000 PIN POSITION GRID 0.098 (2.5) .098 .016 (2.49) (0.41) 6 5 2 BOBBIN TERMINATIONS 4 Bottom View 1 .110 (2.79) MIN. .197 (5.0) 3 Notch or white dot on bobbin indicates pin #1 11/2/00 Rhombus Industries Inc. Transformers & Magnetic Products www.rhombus-ind.com 15801 Chemical Lane, Huntington Beach, CA 92649 Phone: (714) 898-0960 FAX: (714) 896-0971