PS2841-4B-F3-A

Overview

The PS2841-4B-F3-A is a four-channel optically coupled isolator manufactured by CEL. It integrates GaAs light emitting diodes with NPN silicon phototransistors to provide electrical isolation. The device features a 1500Vrms voltage isolation rating and operates with DC input. Key electrical parameters include a minimum Current Transfer Ratio of 100% at 1mA input current, a maximum output voltage of 70V, and an output current capacity of 20mA per channel. The typical forward voltage is 1.1V. It is housed in a 12-BSOP surface mount package.

Feature Summary

• Four independent channels for compact multi-signal isolation
• High isolation voltage rating of 1500Vrms
• Ultra-shrink SOP package design for space efficiency

Applications

• Industrial control systems requiring signal isolation
• Measurement equipment needing high-voltage separation
• Communication interfaces for noise reduction

Procurement Notes

Verify the specific suffix F3 against official datasheets to confirm lead frame material and plating specifications. Confirm that the part status is acceptable for your project lifecycle, as this component may be discontinued or obsolete depending on the distributor. Ensure the 12-BSOP package dimensions match your PCB footprint requirements before ordering.

Selection Notes

Select this component when multiple isolated channels are required in a small form factor. The 100% CTR minimum ensures reliable switching performance. Verify that the 70V output voltage and 20mA current limits meet the load requirements of the receiving circuit. Consider the thermal characteristics of the BSOP package for heat dissipation needs.

Part Context

This part belongs to the PS2841 series of ultra-small SOP photocouplers. It is functionally similar to the PS2841-4A but differs in specific manufacturing revisions or packaging details indicated by the suffix. The series is designed for applications demanding high density and robust isolation in industrial environments.

Replacement Considerations

Check for direct substitutes such as PS2841-4A-F3-AX or PS2841-4B-A. Verify pinout compatibility and electrical parameter equivalence before substitution. Note that some variants may have different package widths or lead materials.