PS2701A-1Y-F3-A

Overview

The PS2701A-1Y-F3-A is a single-channel transistor output optocoupler manufactured by Renesas Electronics. It features an NPN phototransistor output and utilizes a SOP-4 surface mount package. The device provides an insulation voltage of 3750 Vrms, ensuring robust electrical isolation between input and output circuits. Key electrical parameters include a collector-emitter voltage of 70 V, a maximum collector current of 30 mA, and a forward voltage of 1.2 V at a forward current of 5 mA. The current transfer ratio ranges from 50% to 300%, with typical rise and fall times of 5 µs and 7 µs respectively.

Feature Summary

• Provides high-voltage electrical isolation via a 3750 Vrms insulation rating between the infrared LED input and NPN phototransistor output.
• Integrates a shielded internal structure to effectively block ambient light interference, ensuring stable signal transmission in complex environments.
• Utilizes a compact SOP-4 surface mount package designed for automated assembly and high-density circuit board layouts.

Applications

• Digital logic signal transmission and level shifting
• Power supply control and switching circuits
• Electrical isolation between systems and impedance transformation

Procurement Notes

Verify the specific suffix -1Y-F3-A against official Renesas documentation to confirm pinout configuration and tape-and-reel specifications. Confirm RoHS compliance status through the manufacturer's datasheet. Check for obsolescence notices or lifecycle changes prior to procurement. Ensure the supplier provides valid traceability documents. Validate that the component matches the required SOP-4 package dimensions for your PCB footprint.

Selection Notes

Select this component when a single-channel isolation solution with a 70 V collector-emitter voltage is required. It is suitable for applications demanding a 3750 Vrms isolation barrier and moderate speed performance with microsecond-level response times. Consider the 5 mA forward current requirement for drive circuit design. Evaluate the SOP-4 package size constraints against available board space. Compare the 50% to 300% CTR range against system gain requirements.

Part Context

This part belongs to the PS2701A series of transistor output optocouplers from Renesas Electronics. The series is designed for general-purpose isolation tasks requiring reliable signal transfer across electrically isolated domains. The PS2701A-1Y-F3-A variant specifically denotes the SOP-4 surface mount packaging and associated manufacturing lot codes defined by the manufacturer.

Replacement Considerations

Consult official Renesas cross-reference lists for verified substitutes. Verify that any replacement maintains the same 3750 Vrms isolation rating and SOP-4 package compatibility. Ensure the alternative device meets the 70 V collector-emitter voltage and 30 mA collector current specifications. Confirm identical pinout configurations to avoid PCB redesign.