PS2805C-1-M-A

Overview

The PS2805C-1-M-A is a photovoltaic output optoisolator manufactured by CEL, housed in an SOIC-4 package. It features a maximum DC forward current of 30 mA and provides 2500 Vrms isolation voltage. The device exhibits a minimum current transfer ratio of 50% at 5 mA input and a maximum collector-emitter saturation voltage of 300 mV.

Feature Summary

• Photovoltaic output configuration for high-speed signal transmission
• High isolation voltage rating of 2500 Vrms
• Compact surface-mount SOIC-4 packaging

Applications

• Industrial control systems requiring galvanic isolation
• Solid-state relay driver circuits
• Signal isolation in measurement equipment

Procurement Notes

Verify the specific suffix 'M-A' against manufacturer documentation to confirm pinout and electrical characteristics. Confirm availability status as distribution channels may list discontinued or obsolete inventory. Ensure the component matches the required SOIC-4 footprint and lead configuration for PCB integration.

Selection Notes

Select this component when photovoltaic output speed and high isolation are prioritized over linear response. Compare the 30 mA forward current limit and 50% CTR minimum against system requirements. Evaluate thermal management needs within the SOIC-4 package constraints for continuous operation.

Part Context

This part belongs to the PS2805 series of optically coupled isolators. It utilizes a GaAs LED and NPN silicon phototransistor structure. The series includes variants like PS2805C-1 with different packages such as SSOP. The M-A suffix typically denotes specific tape-and-reel or marking configurations.

Replacement Considerations

PS2805C-1: Standard variant with potential package differences. PS2805A-1: Alternative series member with similar optical coupling but distinct electrical parameters.