Low Cost Multi-Purpose Audio Transformers Isolation is 1500 VRMS minimum Longitudinal Balance is 60dB minimum Frequency range: 300Hz to 3400Hz Designed to meet FCC part 68 Custom Designs Available Impedance matching transformers for telecommunications. Ideal for a variety of voice and data interconnect networks Electrical Specifications at 25OC Impedance (Ohms) UNBAL. DC (mA) Insertion (1) Loss (dB) Frequency Response (dB) Return (2) Loss (dB) Pri. DCR max. (Ω) Sec. DCR max. (Ω) Schem. Style T-30000 600 / 600 0.0 1.25 0.5 26 30 40 A T-30001 600 / 600CT 0.0 1.25 0.5 26 30 40 B T-30007 600CT / 600CT 0.0 1.25 0.5 26 30 40 C T-30002 600 / 900 0.0 1.25 0.5 26 30 73 A T-30003 900 / 900 0.0 1.25 0.5 26 40 53 A T-30004 600 / 600 80 2.0 3.0 9.0 65 85 A T-30005 600 / 600CT 80 2.0 3.0 9.0 65 85 B T-30050 600 / 600 0.0 0.4 0.25 26 13 16 A T-30051 600 / 600CT 0.0 0.4 0.25 26 13 16 B T-30057 600CT / 600CT 0.0 0.4 0.25 26 13 16 C T-30052 600 / 900 0.0 0.5 0.25 26 13 23 A T-30053 900 / 900 0.0 0.5 0.25 26 19 23 A T-30054 600 / 600 80 2.0 3.0 9.0 57 75 A T-30055 600 / 600CT 80 2.0 3.0 9.0 57 75 B Part Number 1. Insertion Loss measured at 1 kHz. 2. Return Loss measured at 300 Hz. .785 (19.94) Schematic "A" 1 .620 (15.75) 6 PRI SEC. .725 (18.42) 3 4 Schematic "B" 1 6 PRI .187 (4.75) TYP. Schematic "C" SEC. 5 1 PRI 2 6 SEC. .042 (1.07) TYP. .187 (4.75) TYP. 5 1 3 4 3 4 Rhombus Industries Inc. 3 Bottom View 6 Specifications subject to change without notice. 2 5 4 For other values & Custom Designs, contact factory. 11 .016 (0.41) .420 (10.67) Dimensions in Inches (mm) Unused Pins Omitted as Per Schematic LC-AUDIO - 11/98 15801 Chemical Lane, Huntington Beach, CA 92649-1595 Tel: (714) 898-0960 • Fax: (714) 896-0971