T-31104

Low Profile Modem Coupling and Voiceband Transformers Low Distortion Isolation is 1500VRMS Min. Designed to meet FCC part 68 Frequency Range: 300Hz to 3500Hz Low Profile Package Custom Designs Available 6 12 1 Schematic "A" PRI SEC 7 Schematic "B" SEC PRI 1 7 6 12 Electrical Specifications at 25OC Parameter Impedance R Load Turns Ratio Direct Current in Pri. (DCI) DC Resistance maximum PRI. + 10% SEC. + 10% max., ref. 1 kHz min., @ 300 Hz min., 200Hz to 4kHz 300 Hz to 3.5 kHz minimum PRI. SEC. T-31104 600 530 1:1 70 70 81 1.3 25 60 + 0.2 1500 A T-31105 600 600 1:1 60 75 80 2.0 20 60 +0.5 1500 B T-31106 600 470 1:1 80 62.4 60.1 1.3 20 60 + 1.0 1500 A mA Ω Ω dB dB dB dB VRMS Units Ω Ω Insertion Loss Return Loss Longitudinal Balance Frequency Response Isolation Schematic Style Dimensions in Inches (mm) 1.10 (27.94) TYP. 1 Pins .020 x .027 (0.51 x 0.69) .200 (5.08) .150 (3.81) TYP. 1.30 (33.02) MAX. 7 .150 (3.81) TYP. Bottom View 12 6 1.45 (36.83) MAX. .200 (5.08) TYP. .520 (13.21) TYP. Specifications subject to change without notice. For other values & Custom Designs, contact factory. COUPLNG2 11/98 Rhombus Industries Inc. 6 15801 Chemical Lane, Huntington Beach, CA 92649-1595 Tel: (714) 898-0960 • Fax: (714) 896-0971