PC123X2YFZ1B

Overview

The PC123X2YFZ1B is a single-channel transistor output optocoupler manufactured by Sharp. It features an infrared emitting diode optically coupled to an NPN phototransistor within a surface-mount package. The device provides reinforced insulation with a maximum isolation voltage of 5000 Vrms. The current transfer ratio ranges from 50% to 400% at an input current of 5 mA. Key electrical parameters include a collector-emitter breakdown voltage of 80 V minimum and a maximum forward current of 50 mA. Operating temperature limits span from -30 °C to 100 °C.

Feature Summary

• Reinforced insulation design ensuring high safety standards
• Surface-mount packaging suitable for automated assembly
• Wide current transfer ratio range for flexible signal coupling

Applications

• Input/output isolation for microcontroller units
• Noise suppression in switching circuits
• Signal transmission between circuits of different potentials

Procurement Notes

Verify the specific suffix YFZ1B against official Sharp datasheets to confirm package type and CTR ranking. Ensure compliance with RoHS directives and check for end-of-life status before procurement. Cross-reference manufacturer part numbers to avoid substitution errors.

Selection Notes

Select this component when reinforced insulation and surface-mount form factors are required. Consider the 50-400% CTR range for circuit gain requirements. Verify thermal operating limits and isolation voltage ratings against application stress conditions.

Part Context

This part belongs to the PC123 series, which includes various DIP and SMT options. The series is designed for European safety standards approval. Variants differ primarily in lead spacing, creepage distance, and mounting style while maintaining core electrical characteristics.

Replacement Considerations

PC123X2YIP1B is a documented variant within the same family offering similar electrical specifications.