Description
The 4N45/46 optocouplers contain a GaAsP light emitting diode optically coupled to a high gain photodetector IC.

Features
• High current transfer ratio – 1500% typical
• Low input current requirement – 0.5 mA
• Performance guaranteed over 0°C to 70°C temperature range
• Internal base-emitter resistor minimizes output leakage
• Gain-bandwidth adjustment pin
• Safety approval
    UL Recognized -3750 V rms for 1 minute
   CSA Approved IEC/EN/DIN EN 60747-5-2

Applications
• Telephone ring detector
• Digital logic ground isolation
• Low input current line receiver
• Line voltage status indicator–low input power dissipation
• Logic to read relay interface
• Level shifting
• Interface between logic families