PS2581L1-H-A

Overview

The PS2581L1-H-A is a single-channel transistor output optocoupler from the NEPOC series, manufactured by Renesas Electronics Corporation. It integrates a GaAs infrared LED and an NPN silicon phototransistor within a plastic DIP-4 package. The device provides high isolation voltage of 5000Vrms with long creepage and clearance distances exceeding 8 millimeters. Key electrical parameters include a collector-emitter breakdown voltage of 80V, a maximum DC forward current of 80mA, and a typical current transfer ratio of 80% at 5mA input. Switching characteristics feature rise and fall times of 3µs and 5µs respectively, supporting operation across a temperature range of -55°C to 100°C.

Feature Summary

• High isolation voltage capability of 5000Vrms for robust circuit protection
• Extended lead creepage and clearance distance over 8mm for enhanced safety
• Fast switching performance with 3µs rise and 5µs fall times
• NPN phototransistor output suitable for digital signal transmission

Applications

• Industrial control systems requiring galvanic isolation
• Solid-state relay driver circuits
• Microcontroller interface isolation
• Signal transmission between isolated ground domains

Procurement Notes

Verify component authenticity through authorized Renesas distributors or certified partners. Confirm RoHS3 compliance status and check for recent Product Change Notifications regarding label updates or manufacturing site changes. Ensure the specific suffix matches required packaging and pin configuration standards before finalizing procurement orders.

Selection Notes

Select this component when high isolation voltage and extended creepage distance are critical design requirements. Consider the 80V collector-emitter voltage rating and 50mA output current capability for load matching. Evaluate the DIP-4 package constraints against available PCB space and verify thermal management needs within the specified operating temperature range.

Part Context

This part belongs to the PS2581 family of high-isolation optocouplers designed for demanding industrial applications. The 'L' suffix typically denotes long creepage distance variants, while 'H' indicates specific handling or packaging attributes. It serves as a reliable interface solution for noise-sensitive environments where electrical safety standards require significant isolation barriers between input and output circuits.

Replacement Considerations

PS2561L1-1-H-A is listed as a parameter equivalent alternative by Renesas. Verify pinout compatibility and electrical specification alignment before substitution. Check for any differences in packaging type or mounting style that may impact board layout integration.