PS9122-L-AX

Logic Output Optoisolators Overview

The PS9122-L-AX is a high-speed, active low type optical coupler manufactured by Renesas Electronics. It features an AlGaAs LED on the input side and an open collector output. The device provides one channel with a data rate of 1 Mbps. It offers a minimum common-mode transient immunity (CMTI) of 15 kV/µs to minimize noise interference. The isolation voltage is rated at 3750 Vrms. The component is housed in a 5-pin SO package.

Logic Output Optoisolators Feature Summary

• Active low logic output configuration for direct interface compatibility
• High common-mode transient immunity to ensure signal integrity in noisy environments
• Integrated AlGaAs LED input for efficient optical transmission

Logic Output Optoisolators Applications

• Industrial automation control systems
• Power supply feedback loops
• Communication interface isolation

Logic Output Optoisolators Procurement Notes

Verify the specific suffix L-AX against the official Renesas datasheet to confirm pinout and packaging dimensions. Ensure the procurement source provides valid RoHS compliance documentation. Cross-reference the part number with the manufacturer's current status page to confirm availability and lifecycle stage before finalizing orders.

Logic Output Optoisolators Selection Notes

Select this component when active low logic output is required for the isolated circuit. The 1 Mbps speed rating suits moderate-speed digital isolation needs. Consider the 15 kV/µs CMTI specification for applications with significant switching noise. Verify that the 5-pin SOP package fits the available PCB footprint constraints.

Logic Output Optoisolators Part Context

This part belongs to the PS9122 family of high-speed photocouplers from Renesas. The family typically includes variants with different output types or packaging options. The PS9122 series is designed to replace older discrete optocoupler solutions in compact designs requiring reliable galvanic isolation between control and power stages.

Logic Output Optoisolators Replacement Considerations

Check for PS9122-F3-AX-L as a potential variant within the same product line. Verify pin-to-pin compatibility and electrical parameter equivalence before substitution. Consult the manufacturer's replacement guide for approved equivalents.