4N32M

Overview

The Everlight 4N32M is a single-channel transistor output optocoupler housed in a 6-pin DIP package. It features an NPN phototransistor Darlington pair output with a base terminal for sensitivity control. Key electrical parameters include a maximum collector-emitter voltage of 55V, a minimum current transfer ratio of 500%, and a forward voltage of 1.5V at 60mA input. The device offers 5000 Vrms isolation voltage and operates within a temperature range of -40°C to 100°C.

Feature Summary

• Darlington output configuration provides high current transfer ratio for sensitive signal detection
• Integrated base pin allows for adjustable gain and faster switching performance
• High isolation voltage capability ensures safe separation between input and output circuits

Applications

• Power supply regulators
• Digital logic inputs
• Microprocessor inputs

Procurement Notes

Verify the specific manufacturer source, as this component is produced by multiple vendors including onsemi and Everlight. Confirm RoHS compliance status and packaging type (tube) with the supplier. Check for obsolescence notices or lifecycle changes, particularly regarding the Everlight variant which may have limited availability.

Selection Notes

Select this component when high current transfer ratio is required for driving loads directly. The integrated base pin distinguishes it from standard phototransistor optocouplers like the 4N35, offering better linearity and speed. Ensure the 55V output voltage rating meets the circuit requirements.

Part Context

This part belongs to the 4N32 series of optocouplers, characterized by Darlington outputs. It differs from the 4N35 series which uses standard NPN phototransistors. The 4N32M is functionally similar to other Darlington-type isolators but specific pinouts and ratings vary by manufacturer.

Replacement Considerations

Direct substitutes include the 4N32M from onsemi. Verify pin compatibility and electrical ratings before swapping manufacturers.