T-998

PARAMETER Turns Ratio Line Impedance Inductance (Line Side) 1 : 1 +1% 143 40 Min UNITS T-998 DDS Aplications Pulse Transformers Designed to meet the requirements of Bellcore TR-NWT-000499, Synchronous Digital Data Interface-64 Kbps and Subrates Recomended for use with level one LXT441 Custom versions of this transformer are available. A Surface Mount version of this transformer is available Compatible with Level One transceiver ICs SCHEMATIC DIAGRAM: 1 10 3 8 6 Ω mH µH Ω Ω dB Leakage Inductance 10 kHz - 0.5VRMS 40 Max. Primary DC Resistance Secondary DC Resistance Frequency Response 1 kHz - 200 kHz Insertion Loss @ 10kHz Isolation (HI-POT) Primary DC Return Loss @ 1 kHz - 200 kHz 2.9 Typ. 5.9 Typ. 1.0 Max. 0.5 Typ. 1875 0 15 Typ. dB VRMS mA dB dB dB pF Longitudinal Balance 200 - 1000 Hz 40 Typ. 15 kHz 35 Typ. Interwinding Capacitance 10 kHz - 1 VRMS .625 (15.88) 65 Max. .625 (15.88) 5 Primary Secondary .545 (13.84) MAX. PIN POSITION GRID 0.100 (2.54) HOLES FOR BOBBIN PINS .160 (4.06) TYP. .118 (3.00) .100 (2.54) TYP. .048 (1.22) Pin Diameter is 0.025 (0.64) 10 6 Bottom View Physical Dimensions in inches (mm) 1 5 4/15/98 Rhombus Industries Inc. Transformers & Magnetic Products 15801 Chemical Lane, Huntington Beach, CA 92649 Phone: (714) 898-0960 FAX: (714) 896-0971 www.rhombus-ind.com