PS9821-1-F4-AX

Logic Output Optoisolators Overview

The CEL PS9821-1-F4-AX is a high-speed logic output optoisolator featuring an open collector output stage. It provides 2500Vrms isolation voltage and supports data rates up to 15Mbps with a common mode transient immunity of 15kV/µs. The device operates on a supply voltage range of 2.7V to 3.6V, with a maximum DC forward current of 20mA and typical forward voltage of 1.65V. Propagation delays are specified at 75ns maximum for both low-to-high and high-to-low transitions. Rise and fall times are typically 20ns and 5ns respectively. It functions within an operating temperature range of -40°C to 85°C.

Logic Output Optoisolators Feature Summary

• High-speed operation supporting 15Mbps data transmission rates
• Robust noise immunity with 15kV/µs common mode transient rejection
• Open collector output configuration for flexible logic interfacing
• Wide operating temperature range suitable for industrial environments

Logic Output Optoisolators Applications

• Industrial automation control systems
• Telecommunications signal isolation
• Microcontroller input/output isolation
• Power supply feedback loops

Logic Output Optoisolators Procurement Notes

Verify the specific suffix F4-AX against official datasheets to confirm package type and tape/reel specifications. Confirm component status as discontinued or active through authorized channels. Ensure compatibility with existing PCB footprints for 8-SOIC packages. Check for alternative availability if lead times are critical due to end-of-life status.

Logic Output Optoisolators Selection Notes

Select this component when high-speed digital isolation is required between circuits with different ground potentials. The open collector output allows for level shifting and wired-OR configurations. Ensure the system voltage remains within the 2.7V to 3.6V range. Consider the 2500Vrms isolation rating for safety compliance in mains-connected applications.

Logic Output Optoisolators Part Context

This part belongs to the NEPOC series from CEL, designed for high-performance digital isolation. It integrates a GaAs infrared LED emitter with an integrated circuit photodetector. The series emphasizes speed and reliability for demanding communication interfaces. The 8-SSOP or 8-SOIC package options provide compact surface-mount solutions for space-constrained designs.

Logic Output Optoisolators Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify pinout compatibility and electrical parameters before considering any generic alternatives. Consult manufacturer cross-reference guides for potential obsolescence management strategies.