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4N46 - High Gain Darlington Output Optocouplers

Download the 4N46 datasheet PDF. This datasheet also covers the 4N45 variant, as both devices belong to the same high gain darlington output optocouplers family and are provided as variant models within a single manufacturer datasheet.

General Description

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

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (4N45-Avago.pdf) that lists specifications for multiple related part numbers.

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Other Datasheets by Avago Technologies (now Broadcom)

Part Number Description
4N45 High Gain Darlington Output Optocouplers

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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4N45/4N46 High Gain Darlington Output Optocouplers Data Sheet Description The 4N45/46 optocouplers contain a GaAsP light emitting diode optically coupled to a high gain photodetector IC. The excellent performance over temperature results from the inclusion of an integrated emitter-base bypass resistor which shunts photodiode and first stage leakage currents as well as bleeding off excess base drive to ground. External access to the second stage base provides the capability for better noise rejection than a conventional photodarlington detector. An external resistor or capacitor at the base can be added to make a gain-bandwidth or input current threshold adjustment. The base lead can also be used for feedback.