T-997NC

PARAMETER Turns Ratio Line Impedance Inductance (Line Side) 1 : 1 +1% 135 200 Min UNITS T-997NC 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 LXT400 & LXT456 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 - 1VRMS 60 Max. Primary DC Resistance Secondary DC Resistance Frequency Response 100 Hz - 112 kHz Insertion Loss @ 10kHz Isolation (HI-POT) Primary DC Return Loss @ 100 Hz - 100 kHz 18.2 Typ. 18.2 Typ. 1.0 Typ. 1.25 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 .550 (13.97) MAX. 65 Max. .536 (13.61) MAX. 5 Primary Secondary .525 (13.34) MAX. PIN POSITION GRID 0.100 (2.54) HOLES FOR BOBBIN PINS .210 (5.33) TYP. .100 (2.54) TYP. 10 9 8 7 6 .400 (10.16) TYP. Pin Diameter is 0.025 (0.64) Physical Dimensions in inches (mm) Bottom View 1 2 3 4 5 4/15/98 15801 Chemical Lane, Huntington Beach, CA 92649 Phone: (714) 898-0960 FAX: (714) 896-0971 www.rhombus-ind.com Rhombus Industries Inc. Transformers & Magnetic Products