PS2861-1-A

Overview

The PS2861-1-A is a high isolation voltage, single-channel transistor output optocoupler manufactured by CEL. It features a DC input type and provides an isolation voltage of 2500Vrms. The device utilizes a 4-SOP surface mount package with a width of 4.40mm. Key electrical specifications include a collector-emitter saturation voltage of 0.4V at 10mA and a collector current capability of 40mA per channel. The component operates within a temperature range of -40°C to +100°C for junction temperature.

Feature Summary

• High isolation voltage rating for enhanced safety in signal transmission
• Transistor output configuration for digital switching applications
• Compact 4-pin SOP surface mount package design

Applications

• Industrial control systems requiring galvanic isolation
• Measurement equipment signal interfacing
• Power supply feedback circuits

Procurement Notes

Verify the specific suffix codes against official datasheets to confirm pinout compatibility and insulation class ratings. Ensure that the procurement source provides traceability documentation matching the manufacturer's original part identification standards for quality assurance purposes.

Selection Notes

Select this component when high isolation voltage is required in a compact surface mount form factor. Consider the transistor output type for digital signal applications where low saturation voltage is beneficial. Verify thermal management requirements against the specified junction temperature limits during circuit design.

Part Context

This component belongs to the PS2861 series of high isolation optocouplers from CEL. The series is designed for applications demanding reliable electrical isolation between input and output circuits. The PS2861-1-A variant specifically denotes the standard version without additional tape-and-reel packaging or specific safety certification suffixes found in other variants like the F3 or V versions.

Replacement Considerations

Direct substitutes may include the PS2861-1-K-A or PS2861-1-F3-N-A, provided pinout and electrical characteristics match. Verify that any replacement maintains the same isolation voltage rating and package dimensions to ensure mechanical compatibility.