PC123Y2

Overview

The PC123Y2 is a single-channel transistor output optocoupler manufactured by Sharp Microelectronics. It features a 4-DIP through-hole package and provides an isolation voltage of 5000 Vrms. The device utilizes a phototransistor output with a maximum collector-emitter voltage of 80 V and a maximum collector current of 50 mA. Key electrical parameters include a typical rise time of 4 µs, a typical fall time of 3 µs, and a power dissipation rating of 200 mW. The unit operates within a temperature range of -30°C to +100°C.

Feature Summary

• Provides high-voltage electrical isolation between input and output circuits using optical transmission.
• Utilizes a phototransistor output stage for signal switching applications.
• Designed for surface-mount or through-hole integration in compact electronic assemblies.

Applications

• Signal isolation in industrial control systems
• Interface circuits for microprocessor-based logic systems
• Power supply feedback loops requiring galvanic separation

Procurement Notes

Verify component authenticity due to the nrnd status. Confirm package integrity upon receipt. Check for RoHS compliance documentation if required by project specifications. Ensure handling procedures match standard electrostatic discharge precautions for semiconductor devices.

Selection Notes

Select this component when 5000 Vrms isolation is required in a small footprint. Consider the 4 µs switching speed for moderate frequency applications. Evaluate thermal management needs given the 200 mW power dissipation limit. Verify compatibility with existing PCB footprints for 4-DIP packages.

Part Context

This part belongs to Sharp's transistor output optocoupler family. It shares functional similarities with other models in the series but differs in packaging and specific electrical ratings. The PC123Y2 represents a legacy design point within the manufacturer's broader portfolio of isolation components.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material. Consult official Sharp Microelectronics documentation for direct replacements or verify cross-reference data from authorized distributors.