PS9821-2-F3-A

Logic Output Optoisolators Overview

The PS9821-2-F3-A is a dual-channel logic output optoisolator manufactured by CEL. It features an open collector output configuration and provides 2500Vrms isolation voltage between input and output channels. The device supports a data rate of 15Mbps with a common mode transient immunity (CMTI) of 15kV/µs. It is housed in an 8-SSOP package, designed for applications requiring high-speed signal transmission with electrical isolation.

Logic Output Optoisolators Feature Summary

• Dual-channel architecture providing independent signal isolation paths
• Open collector output stage suitable for interfacing with various logic families
• High common mode transient immunity for noise-resistant operation
• Compact surface-mount packaging to reduce board space

Logic Output Optoisolators Applications

• Industrial automation control systems
• Measurement and testing equipment
• Power supply feedback loops
• Communication interface isolation

Logic Output Optoisolators Procurement Notes

Verify current availability status as the PS9821-2-F3-A may be obsolete or discontinued. Confirm if direct substitutes are available from the manufacturer. Check for RoHS compliance documentation. Ensure the specific suffix matches required packaging or temperature grades. Validate lead times with authorized distributors before ordering.

Logic Output Optoisolators Selection Notes

Select this component when dual-channel isolation with high-speed digital signaling is required. Consider the open collector output limitations regarding pull-up requirements. Evaluate the 2500Vrms isolation rating against system safety standards. Compare CMTI specifications with noise environments. Assess power consumption at the target operating voltage.

Logic Output Optoisolators Part Context

This part belongs to the PS9821 series of high-speed photocouplers. The series utilizes GaAlAs light-emitting diodes for efficient optical transmission. Variants differ in channel count and output types. The PS9821-2 specifically denotes the dual-channel configuration within this family.

Logic Output Optoisolators Replacement Considerations

Direct substitutes include the PS9821-2-F3-AX. Verify pinout compatibility and electrical parameter equivalence. Check for any differences in isolation voltage ratings or package dimensions. Confirm that the substitute maintains the same logic output type and speed characteristics.