V.32 Modem Transformer 6743 • Low distortion, suitable for use in V.32 application • Operating temperature -40°C to +85°C • Low cost • Small size, low profile • UL94V-0 MECHANICAL AND SCHEMATIC (All dimensions in millimetres) SUGGESTED PAD LAYOUT 15.40 TYP 2.54 0.85 TYP 1.70 TYP SCHEMATIC SEC 346 ohm ELECTRICAL SPECIFICATION @ 25˚C Part Turns Ratio Insertion Loss Frequency Response Return Loss Number (±2%) @ 1kHz, 20˚C dB MAX 300Hz-3.5kHz dB 300Hz-3.5kHz dB MIN 6743 1:1 3.11 -0.1 ±0.25 ISSUE: C 24/07/01 6743 PRI 600 ohm 25 Longitudinal Balance 200Hz-4kHz dB MIN 60 DCR PRI DCR SEC Isolation Voltage (VAC) (±15%) OHMS (±15%) OHMS PRI-SEC& PRI-CORE 127 150 1250 229 Colonnade Road, Ottawa, Ontario, Canada K2E 7K3 Tel: (613) 226-1626 Fax: (613) 226-7124 www.filtran.com An ISO 9001 Registered Company