4N32300

Overview

The onsemi 4N32300 is a single-channel optoisolator featuring a Darlington output with base control. It provides 5300Vrms isolation voltage and a minimum current transfer ratio of 500% at 10mA input current. Typical turn-on time is 5µs, with a maximum turn-off time of 100µs. The device is housed in a 6-DIP package.

Feature Summary

• Single-channel configuration with integrated Darlington phototransistor output
• High-voltage electrical isolation capability for circuit separation
• Base terminal available on the output transistor for external control

Applications

• General-purpose signal isolation
• Logic interface circuits
• Power supply feedback loops

Procurement Notes

Verify the specific suffix '300' to confirm the 5300Vrms isolation rating, as standard 4N32 variants may differ. Confirm package type and lead times directly with authorized distributors. Ensure compliance with RoHS directives if required by the application environment.

Selection Notes

Select this component when high isolation voltage is critical. The Darlington output offers high gain but slower switching speeds compared to standard transistors. The base pin allows for improved speed or sensitivity adjustments via external biasing.

Part Context

This part belongs to the 4N32 series of optocouplers. It shares the same physical footprint and basic functionality as other members but is distinguished by its enhanced isolation voltage rating and specific output characteristics defined by the manufacturer's datasheet specifications.

Replacement Considerations

Direct substitutes include the 4N32M or 4N32VM from onsemi, though their isolation ratings (typically 3750Vrms or 4170Vrms) are lower than the 5300Vrms of the 4N32300. Verify isolation requirements before substitution.