PS2561L-1-F3-L-A

Overview

The CEL PS2561L-1-F3-L-A is a single-channel transistor output optocoupler housed in a surface-mount DIP-4 Gull Wing package. It provides 5000 Vrms isolation voltage with an NPN phototransistor output. Key electrical parameters include a collector-emitter saturation voltage of 300 mV maximum, a forward current of 80 mA, and a forward voltage of 1.4 V. The device operates within a temperature range of -55°C to +100°C, featuring rise and fall times of 3 µs and 5 µs respectively.

Feature Summary

• Provides high-voltage electrical isolation between input and output circuits
• Features fast switching speeds suitable for digital signal transmission
• Designed for surface-mount assembly in compact PCB layouts

Applications

• Industrial control systems requiring signal isolation
• Microcontroller interface circuits
• Power supply feedback loops

Procurement Notes

Verify the specific suffix F3-L-A against the manufacturer's latest datasheet to confirm pinout and packaging details. Ensure compliance with RoHS directives if required by your application standards. Check for obsolescence status as some variants may be discontinued or recommended for non-new designs. Confirm availability through authorized distributors to avoid counterfeit components.

Selection Notes

Select this component when high isolation voltage and moderate speed are required in a small surface-mount footprint. Compare CTR specifications against load requirements to ensure proper transistor saturation. Verify thermal dissipation capabilities within the operating temperature range. Consider alternative packages if leaded versions are preferred for specific manufacturing processes.

Part Context

This part belongs to the PS2561L series of transistor output optocouplers manufactured by Renesas Electronics (formerly CEL). The series is designed for general-purpose isolation applications. The specific model indicates a surface-mount variant with defined electrical characteristics distinct from through-hole or other output types within the same family.

Replacement Considerations

Direct replacements must match the 5000 Vrms isolation rating and NPN output type. Verify that substitute parts offer comparable current transfer ratio and switching speeds. Ensure the replacement package is compatible with existing PCB footprints.