PS2501L-1-L-A

Overview

The PS2501L-1-L-A is a single-channel transistor output optoisolator manufactured by Renesas Electronics Corporation. It features a GaAs infrared LED coupled to an NPN phototransistor, providing 5000Vrms isolation voltage. The device operates within a temperature range of -55°C to +100°C and utilizes a 4-SMD gull-wing package. Key electrical parameters include a maximum collector-emitter voltage of 80V, a DC forward current of 80mA, and a typical forward voltage of 1.3V. The current transfer ratio ranges from 100% to 400% at 5mA input, with rise and fall times of 3µs and 5µs respectively.

Feature Summary

• Provides high-voltage electrical isolation between input and output circuits using an internal GaAs light emitting diode and NPN phototransistor configuration.
• Offers robust signal transmission capabilities with a wide operating temperature range suitable for demanding industrial environments.
• Features a compact surface-mount design that facilitates automated assembly and space-constrained PCB layouts.

Applications

• Signal isolation in industrial control systems
• Interface circuits for microprocessors and logic devices
• Power supply feedback loops

Procurement Notes

Verify the specific suffix 'L' indicates the lead-free compliant variant as per Renesas documentation. Confirm the package type matches the required 4-SMD gull-wing footprint during procurement. Check for any recent Product Change Notifications regarding labeling or manufacturing site updates before finalizing orders.

Selection Notes

Select this component when high isolation voltage and fast switching speeds are required in a small surface-mount package. Ensure the application voltage does not exceed the 80V collector-emitter rating. Consider the current transfer ratio variations when designing biasing networks for reliable switching performance across the specified temperature range.

Part Context

This part belongs to the PS2501L series of high-speed switch optocouplers. It shares functional similarities with the PS2501-1-A but differs in packaging and compliance specifications. The series is designed for general-purpose isolation applications requiring reliable signal transfer between low-power logic circuits and higher-voltage loads.

Replacement Considerations

Direct substitutes may include other single-channel transistor output optocouplers with similar isolation ratings and pin configurations. Verify compatibility with existing PCB footprints and electrical characteristics such as CTR and switching times before substitution.