PS2503L-1-F3-A

Overview

The PS2503L-1-F3-A is a transistor output optocoupler from Renesas Electronics, featuring a GaAs LED and NPN phototransistor. It provides 5000 Vrms isolation in a 4-SMD gull-wing package. Key electrical parameters include a collector-emitter voltage of 40 V, maximum collector current of 30 mA, and forward current of 80 mA. The current transfer ratio ranges from 100% to 400%. Typical switching times are 20 µs rise and 30 µs fall. Operating temperature spans -55°C to +100°C with 150 mW power dissipation.

Feature Summary

• Optical isolation between input and output circuits using a GaAs light emitting diode and silicon phototransistor.
• High insulation voltage capability for safe signal transmission across potential differences.
• Surface mount construction designed for automated assembly processes.

Applications

• General purpose signal isolation in industrial control systems
• Interface circuits for microprocessors and logic devices
• Power supply feedback loops requiring galvanic separation

Procurement Notes

Verify the specific suffix F3-A against the official datasheet to confirm surface mount packaging and tape-and-reel configuration. Confirm RoHS compliance status as indicated in the manufacturer documentation. Check component lifecycle status, as this part may be marked as not recommended for new designs. Ensure the supplier provides valid traceability documents matching the Renesas Electronics Corporation manufacturing origin.

Selection Notes

Select this component when high isolation voltage is required alongside standard NPN phototransistor output characteristics. Consider the 40 V collector-emitter voltage limit for low-voltage switching applications. Evaluate the 100% to 400% current transfer ratio range for adequate gain in digital signaling. Verify that the 20 µs switching speed meets the timing requirements of the target circuit interface.

Part Context

This device belongs to the PS2503L series of transistor output optocouplers. It shares the same core optical structure as through-hole variants but utilizes a surface mount package. The series is designed for general-purpose isolation tasks. The F3-A suffix specifically denotes the reel packaging format and lead finish specifications defined by the manufacturer.

Replacement Considerations

PS2503L-1-A

FAQ

What is the typical current transfer ratio at 1 mA forward current?

The current transfer ratio typically ranges from 100% to 400% when tested at a forward current of 1 mA.

Does this component support AC input signals?

No, the input type is specified as DC, utilizing a GaAs light emitting diode for direct current operation.