PS9821-1-F3-A

Logic Output Optoisolators Overview

The CEL PS9821-1-F3-A is a single-channel high-speed logic output optocoupler featuring an open collector output. It operates within a supply voltage range of 2.7V to 3.6V and supports data rates up to 15Mbps. The device provides 2500Vrms isolation voltage and exhibits a common-mode transient immunity (CMTI) of 15kV/µs. Maximum propagation delay is 75ns for both low-to-high and high-to-low transitions, with typical rise and fall times of 20ns and 5ns respectively. The component is housed in an 8-SSOP package and functions across a temperature range of -40°C to 85°C.

Logic Output Optoisolators Feature Summary

• High-speed operation with 15Mbps data rate capability
• Robust noise immunity via 15kV/µs common-mode transient rejection
• Active-low logic output configuration for direct interface compatibility

Logic Output Optoisolators Applications

• High-speed digital signal isolation in industrial control systems
• Communication interface isolation for microcontroller networks
• Power supply feedback loop isolation in switching regulators

Logic Output Optoisolators Procurement Notes

Verify the specific suffix 'F3' against current manufacturer documentation, as this variant may indicate tape-and-reel packaging or specific lead finish requirements distinct from bulk versions. Confirm availability status, as the base model PS9821-1-A is listed as obsolete; ensure the F3-A variant is actively supported by CEL or authorized distributors before finalizing procurement plans.

Logic Output Optoisolators Selection Notes

Select this component when designing circuits requiring fast switching speeds and high noise immunity in low-voltage logic environments. Ensure the input forward current does not exceed 20mA DC maximum and that the output load can handle the 25mA sink current capability. Verify that the system operating temperature remains within the specified -40°C to 85°C range for reliable performance.

Logic Output Optoisolators Part Context

This part belongs to the NEPOC series of high-speed photocouplers manufactured by CEL. It utilizes a GaAlAs LED emitter coupled to an integrated photodetector IC to achieve high CMTI and fast propagation delays. The device is designed for applications demanding reliable electrical isolation between low-voltage control circuits and higher-voltage power stages.

Logic Output Optoisolators Replacement Considerations

Direct substitutes include PS9821-1-F3-AX from Renesas Electronics Corporation. Alternative options such as HCPL-060L from Broadcom Limited or PS9817A-1 variants may be considered if pinout and electrical specifications align with the design requirements.