PS2561DL2-1Y-A

Overview

The PS2561DL2-1Y-A is a single-channel transistor output optocoupler manufactured by Renesas Electronics Corporation. It integrates a GaAs infrared emitting diode and an NPN silicon phototransistor within a 4-pin surface-mount DIP package. The device provides high isolation voltage of 5000 Vrms, ensuring reliable signal transmission between isolated circuits. Key electrical parameters include a maximum collector-emitter voltage of 80 V, a maximum collector current of 50 mA, and a forward current rating of 40 mA. The typical current transfer ratio ranges from 50% to 400%, with rise and fall times of 3 µs and 5 µs respectively.

Feature Summary

• Integrates a GaAs light emitting diode and an NPN silicon phototransistor for efficient optical coupling
• Provides robust electrical isolation with a high insulation voltage rating
• Designed for surface mount installation in compact electronic assemblies

Applications

• Industrial control systems requiring galvanic isolation
• Signal transmission across isolated power supply circuits
• Microcontroller interface circuits for noise immunity

Procurement Notes

Verify the specific suffix and packaging configuration when ordering, as variations exist within the PS2561 family. Confirm RoHS compliance status and moisture sensitivity level requirements against your manufacturing standards. Ensure the selected component matches the required lead frame material and marking specifications for traceability purposes.

Selection Notes

Select this component when a surface-mount solution is required for single-channel isolation applications. Consider the 5000 Vrms isolation rating for safety-critical designs. Evaluate the current transfer ratio range to ensure adequate signal gain for the intended load. Verify that the operating temperature range meets the environmental conditions of the final application.

Part Context

This part belongs to the PS2561 series of transistor output optocouplers. The series includes through-hole and surface-mount variants with different pin configurations and isolation ratings. The DL2 designation typically indicates a specific surface-mount package style optimized for automated assembly processes.

Replacement Considerations

Direct replacements may include other PS2561 series variants such as PS2561L2-1 or PS2561DL-1, provided the package footprint and electrical characteristics are compatible. Verify pinout compatibility and isolation voltage ratings before substitution.