PS9122-AX

Logic Output Optoisolators Overview

The PS9122-AX is a high-speed, active-low type optical isolator manufactured by Renesas Electronics Corporation. It integrates an AlGaAs LED on the input side with an open collector output stage. The device operates at data rates up to 1 Mbps and features a typical forward voltage of 1.6V with a maximum DC forward current of 25mA. It is housed in a compact SO-5 package and complies with UL 1577 safety standards.

Logic Output Optoisolators Feature Summary

• High-speed signal isolation capability for digital communication interfaces
• Active-low logic output configuration simplifies circuit design
• Integrated GaAlAs LED provides efficient optical coupling

Logic Output Optoisolators Applications

• Industrial automation control systems
• Power supply feedback loops
• Digital isolation in microcontroller interfaces

Logic Output Optoisolators Procurement Notes

Verify the specific suffix (e.g., -F3) against the required package type, as the base part number may correspond to multiple physical configurations. Confirm RoHS compliance status and ensure the active-low output polarity matches the receiving circuit requirements before ordering.

Logic Output Optoisolators Selection Notes

Select this component when high-speed isolation is required with low power consumption. Ensure the input current does not exceed 25mA and verify that the open-collector output can handle the load voltage and current specifications of the target application circuit.

Logic Output Optoisolators Part Context

This device belongs to the PS9122 family of high-speed optocouplers designed for reliable signal transmission across isolation barriers. It serves as a critical interface component in systems requiring electrical separation between control and power sections while maintaining fast switching speeds.

Logic Output Optoisolators Replacement Considerations

Check for direct substitutes within the same Renesas PS9122 series, such as variants with different packaging suffixes like PS9122-F3-AX, ensuring pinout and electrical characteristics remain identical.