T3/DS3/E3/STS-1 Dual Input Transformers 8630-8632 • Models matched to leading transceiver ICs • Return Loss requirements of G.703 exceed • 1500 Vrms isolation per UL1459 and UL1950 • Extended operating temperature range of -40°C to +85°C Mechanical and Schematic (All dimensions in inches) SUGGESTED PAD LAYOUT SCHEMATIC 1 SCHEMATIC 2 SCHEMATIC 3 ISSUE: B 21/01/02 8630-8632 ELECTRICAL SPECIFICATION @ 25˚C Part Number Turns Ratio (±2%) TX RX OCL Primary @ 25˚C (µH MIN) OCL Primary @ -40˚C (µH MIN) TX TX RX RX LL (µH MAX) TX RX CW/W (pF MAX) TX Isolation Voltage (Vrms MIN) Schematic RX Primary Pins TX RX 8630 1:2CT 1:1 40 100 19 40 .100 .110 10 10 1500 1 16-14 6-8 8631 1CT:1CT 1:1 100 100 40 40 .110 .110 10 10 1500 2 6-8 16-15 8632 1:2CT 1:1 100 100 40 40 .110 .110 10 10 1500 3 7-8 16-15 An ISO 9001 Registered Company 229 Colonnade Road, Ottawa, Ontario, Canada K2E 7K3 Tel: (613) 226-1626 Fax: (613) 226-7124 www.filtran.com