PS2561D-1Y-A

Overview

The PS2561D-1Y-A is a single-channel transistor output optocoupler manufactured by Renesas Electronics. It features an NPN phototransistor output and utilizes a 4-pin DIP package for through-hole mounting. The device provides an isolation voltage of 5000 Vrms, ensuring robust electrical separation between input and output circuits. Key electrical parameters include a maximum collector-emitter voltage of 80 V and a maximum collector current of 50 mA. The forward current rating is 40 mA with a typical forward voltage of 1.2 V. The current transfer ratio ranges from 100% to 200%, supporting reliable signal transmission.

Feature Summary

• Provides high-voltage isolation capability suitable for safety-critical applications
• Features a standard NPN phototransistor output configuration for direct interfacing
• Designed for through-hole installation in compact circuit layouts

Applications

• Industrial control systems requiring signal isolation
• Power supply feedback loops for voltage regulation
• Microcontroller interface circuits for noise immunity

Procurement Notes

Verify the specific suffix 'A' against the manufacturer's latest datasheet to confirm pinout compatibility and material composition. Ensure that the required current transfer ratio meets the design specifications, as variations exist within the product family. Confirm RoHS compliance status directly with the supplier documentation prior to integration into regulated equipment designs.

Selection Notes

Select this component when a standard DIP form factor is required for prototyping or legacy board maintenance. Consider the 80 V collector-emitter voltage limit to ensure adequate headroom for the target switching application. Evaluate the thermal performance within the operating temperature range to maintain stable current transfer characteristics under continuous load conditions.

Part Context

This part belongs to the PS2561 series of single-channel optocouplers from Renesas Electronics. The series offers various packaging options including surface mount and through-hole configurations. The D-series designation typically indicates specific dimensional and mechanical characteristics distinct from other variants in the lineup, such as the L-series which uses a different package style.

Replacement Considerations

Cross-reference with PS2561DL-1-A for similar functionality in alternative packages. Verify electrical equivalence before substituting, as pinouts and physical dimensions may differ significantly between DIP and SMD variants within the same manufacturer's portfolio.