PS2561DL-1Y-W-A

Overview

The PS2561DL-1Y-W-A is a single-channel transistor output optocoupler manufactured by Renesas Electronics. It integrates a GaAs infrared emitting diode and an NPN silicon phototransistor within a DIP-4 Gull Wing package designed for surface mount technology. The device provides high 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, a maximum collector current of 50 mA, and a forward current rating of 40 mA. The typical current transfer ratio ranges from 100% to 260%, with switching times of 3 µs rise and 5 µs fall.

Feature Summary

• High isolation voltage capability of 5000 Vrms for reliable circuit separation
• Surface mount DIP-4 Gull Wing package design for automated assembly
• Fast switching performance with typical rise and fall times of 3 µs and 5 µs respectively
• Wide operating temperature range supporting industrial applications up to 110°C

Applications

• Industrial automation control systems requiring signal isolation
• Power supply feedback loops for voltage regulation
• Microcontroller interface circuits for digital signal transmission
• Solid-state relay driver circuits in AC/DC conversion modules

Procurement Notes

Verify the specific suffix 'W-A' against official Renesas documentation to confirm lead bending type specifications and creepage distance requirements. Ensure compatibility with surface mount reflow soldering profiles. Confirm RoHS compliance status through the latest datasheet revision. Cross-reference part numbers with authorized distributors to avoid counterfeit components. Validate that the selected variant meets the required insulation voltage ratings for your specific safety standards.

Selection Notes

Select this component when surface mount assembly is preferred over through-hole technology while maintaining high isolation requirements. Consider the 5000 Vrms isolation rating for applications involving high voltage differentials. Evaluate the 80 V collector-emitter voltage limit to ensure it exceeds the maximum load voltage in the target circuit. Assess the 40 mA forward current capacity against the driving source capabilities. Verify that the 110°C operating temperature range aligns with the environmental conditions of the final product enclosure.

Part Context

This component belongs to the PS2561 series of NEC (now Renesas) photocouplers, which are widely used for general-purpose isolation. The DL variant specifically denotes the lead-bending type suitable for surface mounting. The series is known for its reliability in industrial environments and compliance with international safety standards such as UL and VDE. It serves as a standard solution for galvanic isolation in compact electronic designs where board space is limited.

Replacement Considerations

PS2561DL-1-F3-A is a verified substitute offering similar electrical characteristics in a taping format. PS2561DL-1Y-A/Q/W shares identical core specifications but may differ in packaging quantity or regional distribution channels. Always verify pinout compatibility and thermal performance before substituting.