PS2561-1-L-A

Overview

The CEL PS2561-1-L-A is a single-channel transistor output optocoupler featuring an NPN silicon phototransistor and a GaAs infrared LED. It provides high isolation voltage of 5000 Vrms and supports a collector-emitter breakdown voltage of 80 V minimum. The device operates within a temperature range of -55 °C to 110 °C, with a maximum forward current of 50 mA and a typical current transfer ratio of 200% at 5 mA input.

Feature Summary

• High isolation voltage capability for safe signal transmission
• Single channel configuration with NPN phototransistor output
• Lead-free construction compliant with environmental standards

Applications

• Industrial control systems requiring galvanic isolation
• Power supply feedback circuits
• Signal isolation in microprocessor interfaces

Procurement Notes

Verify the specific suffix 'L-A' against manufacturer documentation to confirm lead form and packaging details. Ensure compatibility with RoHS directives if required by your application. Cross-reference with Renesas or NEC datasheets for electrical parameter consistency before finalizing procurement specifications.

Selection Notes

Select this component when high isolation voltage and reliable transistor output are required. Consider the operating temperature range and current transfer ratio for circuit design. Verify pinout compatibility with existing PCB layouts. Compare with similar models like PS2561A-1 for alternative sourcing options.

Part Context

This part belongs to the PS2561 series of high isolation voltage single transistor type multi photocouplers. Originally developed by NEC, these components are now manufactured under license by CEL. The series is designed for cost-effective isolation solutions in various electronic applications.

Replacement Considerations

Direct substitutes include PS2561A-1 and PS2561BL2-1-E3-A. Verify pinout and electrical parameters match before substitution. Check for equivalent isolation voltage and current transfer ratio requirements.