PS2806-1-A

Overview

The PS2806-1-A is a single-channel transistor output optocoupler manufactured by Renesas Electronics. It features an NPN photodarlington output and is housed in a 4-pin SSOP package. Key electrical parameters include a minimum current transfer ratio of 200% and a maximum of 2000%. The device supports a forward current of 5 mA with a forward voltage of 1.1 V. It withstands a collector-emitter voltage of up to 40 V and a collector current of 90 mA. The isolation voltage is rated at 2500 Vrms, with a maximum collector-emitter saturation voltage of 1 V.

Feature Summary

• Provides high-gain signal transmission via NPN photodarlington output configuration
• Ensures electrical isolation between input and output circuits
• Designed for surface-mount integration using compact SSOP packaging

Applications

• Industrial control systems requiring galvanic isolation
• Signal transmission in measurement and testing equipment
• Power supply feedback loops for circuit protection

Procurement Notes

Verify the component status before procurement as it may be marked Not Recommended for New Designs (NRND). Confirm that the specific pinout and electrical characteristics align with your design requirements. Check for availability through authorized distributors, as stock levels vary. Ensure compliance with RoHS directives if applicable to your manufacturing standards.

Selection Notes

Select this component when high current transfer ratio is required for driving loads directly. The photodarlington output offers higher gain compared to standard phototransistors. Consider the 2500 Vrms isolation rating for safety-critical applications. Evaluate the 5 mA forward current requirement against your available drive voltage and series resistance capabilities.

Part Context

This part belongs to the PS2806 series of single-channel optocouplers from Renesas Electronics. It shares the same functional architecture as other variants in the family but differs in packaging or specific electrical tolerances. The series is designed for general-purpose isolation tasks where moderate speed and high gain are prioritized over switching frequency performance.

Replacement Considerations

Direct substitutes within the same series include PS2806-1-F3-P-A. Verify pin compatibility and electrical specifications before substitution. Cross-referencing with other manufacturers requires careful validation of CTR ranges and isolation voltages.