PS2806-4-A

Overview

The PS2806-4-A is a four-channel transistor output optocoupler manufactured by Renesas Electronics. It features an NPN photodarlington output configuration housed in a 16-pin SSOP package. The device provides an isolation voltage of 2500 Vrms and operates within a temperature range of -55°C to +100°C. Key electrical parameters include a maximum collector-emitter voltage of 40 V, a maximum collector current of 90 mA, and a forward voltage of 1.1 V at a forward current of 5 mA. The current transfer ratio ranges from 200% to 2000%, with a typical rise time of 200 μs.

Feature Summary

• Four independent channels integrated into a single compact surface-mount package for space-efficient circuit design.
• High current transfer ratio capability ensures reliable signal transmission between isolated circuits.
• Robust insulation performance supports safe operation across high-voltage boundaries.

Applications

• Industrial control systems requiring multi-channel signal isolation
• Measurement equipment needing galvanic separation
• Power supply units utilizing feedback loop isolation

Procurement Notes

Verify the component status as NRND (Not Recommended for New Designs) before initiating procurement. Confirm that existing inventory meets long-term supply requirements. Ensure compatibility with the 16-pin SSOP footprint during replacement planning. Validate RoHS compliance details against specific project regulations prior to ordering.

Selection Notes

Select this component when multiple isolated channels are required within a limited board area. The photodarlington output offers higher gain compared to standard phototransistors, suitable for driving logic inputs directly. Consider the 200 μs switching speed limitation for applications not requiring high-frequency data transmission.

Part Context

This part belongs to the PS series of optocouplers from Renesas Electronics. It is designed for general-purpose isolation tasks where moderate speed and high gain are prioritized. The family typically includes variants with different pin counts and output types to address diverse isolation needs in industrial and consumer electronics.

Replacement Considerations

Public confirmed substitute part numbers: None identified.