PS9821-2-F4-AX

Logic Output Optoisolators Overview

The PS9821-2-F4-AX is a dual-channel logic output optoisolator manufactured by CEL. It features an open collector output capable of handling 25 mA per channel with a data rate of 15 Mbps. The device provides 2500 Vrms isolation voltage and 15 kV/µs common mode transient immunity. Operating on a supply voltage of 2.7 V to 3.6 V, it exhibits maximum propagation delays of 75 ns for both high-to-low and low-to-high transitions. Typical rise and fall times are 20 ns and 5 ns, respectively. The component operates within a temperature range of -40°C to 85°C and is housed in an 8-SSOP package.

Logic Output Optoisolators Feature Summary

• Dual-channel architecture providing independent signal isolation for two separate circuits
• High-speed digital performance supporting data rates up to 15 Mbps
• Robust noise immunity characterized by 15 kV/µs common mode transient rejection
• Open collector output stage compatible with standard logic interfaces

Logic Output Optoisolators Applications

• Industrial communication bus isolation
• Digital signal transmission between isolated ground domains
• Microcontroller interface protection in noisy environments

Logic Output Optoisolators Procurement Notes

Verify the specific suffix F4-AX against official datasheets to confirm pinout and packaging variations. Confirm current availability status as product lifecycle stages may affect sourcing. Ensure compatibility with existing board layouts regarding the 8-SSOP footprint. Cross-reference electrical specifications with system requirements before finalizing procurement decisions.

Logic Output Optoisolators Selection Notes

Select this component when dual-channel isolation is required within a compact surface-mount package. The 15 Mbps speed rating suits moderate-speed digital interfaces. Verify that the 25 mA output current meets load requirements. Ensure the 2.7 V to 3.6 V supply range aligns with the target system voltage levels. Consider the 2500 Vrms isolation barrier for safety compliance needs.

Logic Output Optoisolators Part Context

This part belongs to the NEPOC series of high-speed optocouplers from CEL. It shares architectural similarities with single-channel variants like the PS9821-1 series but integrates two independent channels in one package. The series is designed for applications requiring reliable digital signal transfer across isolated boundaries with minimal delay.

Logic Output Optoisolators Replacement Considerations

Direct substitutes include other dual-channel optocouplers with matching 2500 Vrms isolation and similar pinouts. Verify functional equivalence regarding propagation delay and output current capabilities. Check for package compatibility to ensure seamless integration without PCB redesign.