PARAMETER UNITS Primary Impedance Turns Ratio* 600 T-980 Ω 1.0 : 0.5 : 0.5 : 0.5 : 0.5 Longitudinal Balance dB SCHEMATIC DIAGRAM: Primary DC Resistance* 49 Ω nom. Secondary DC Resistance* 62 Ω nom. Frequency Response 300 - 3000Hz 0.3 dB nom. Insertion Loss 1.5 dB nom. Isolation (HI-POT) 800 VRMS 1 (A) 3 (C) S1 4 (D & E) S2 5 (F) 6 (G) Pri S3 7 (H & I) S4 8 (J) 2 (B) Insulation Resistance MΩ Primary DC 0 S1 & S2 share pin #4 S3 & S4 share pin #7 mA *two secondaries in series .640 (16.3) MAX. .575 (14.6) .450 (11.4) Physical Dimensions in inches (mm) .280 (7.1) .020 (0.51) SQ. .150 (3.81) TYP. 1 2 3 4 8 7 6 5 .400 (10.16) RHOMBUS INDUSTRIES INC. FSCM NO. 16714 RHOMBUS P/N: T-980 CUST P/N: DATE: 12/17/97 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