PS2732-1-A

Overview

The PS2732-1-A is a single-channel optocoupler featuring a GaAs infrared LED and an NPN silicon Darlington phototransistor output. It provides high isolation with a voltage rating of 2500Vrms. The device offers a minimum current transfer ratio of 1500% at 1mA input current. Typical rise and fall times are 100µs each. It is housed in a 4-SOP package.

Feature Summary

• High collector-to-emitter voltage capability for robust isolation
• Darlington-connected phototransistor for high gain
• GaAs infrared LED source for efficient optical coupling

Applications

• Industrial control systems requiring galvanic isolation
• Power supply feedback loops
• Signal isolation in measurement equipment

Procurement Notes

Verify the specific suffix -A against the manufacturer's latest datasheet to confirm pinout and electrical characteristics match your design requirements. Check component status as some variants may be obsolete. Ensure compatibility with your PCB footprint and thermal management needs before finalizing procurement.

Selection Notes

Select this component when high current transfer ratio is critical for driving loads directly. Consider the 100µs switching speed limitations for high-frequency applications. Verify that the 2500Vrms isolation voltage meets safety standards for your specific application environment.

Part Context

This part belongs to the NEPOC series from CEL, designed for general-purpose isolation tasks. It replaces older NEC/Renesas designs with similar specifications. The SOP package facilitates surface-mount assembly in compact electronic devices requiring reliable signal transmission across isolated boundaries.

Replacement Considerations

Direct substitutes include PS2732-1-F3, though availability should be verified. Cross-reference with PS2732-1-V-E3-A for potential equivalent performance. Always validate pin compatibility and electrical parameters before substitution.