PC847X7

Overview

The PC847X7 is a four-channel general-purpose photocoupler manufactured by Sharp Microelectronics. It integrates an infrared emitting diode optically coupled to a phototransistor array within a single package. The device provides electrical isolation between input and output circuits, rated at 5000 Vrms isolation voltage. It features a collector-emitter voltage of 80V and supports a wide range of current transfer ratios depending on the specific sub-series variant. The component is designed for surface-mount or through-hole applications using a 16-pin DIP configuration.

Feature Summary

• Four independent channels provide multiple signal isolation paths in a compact footprint
• High isolation voltage capability ensures safety in high-voltage circuit separation
• Standardized pinout facilitates direct replacement in existing designs

Applications

• Industrial control systems requiring multi-channel signal isolation
• Data communication interfaces for noise immunity
• Power supply feedback loops for primary-side sensing

Procurement Notes

Verify the exact suffix designation against the manufacturer datasheet to confirm channel count and packaging type. Ensure the specified isolation voltage rating matches the application requirements. Confirm lead form options such as gull-wing or straight pins if mechanical constraints apply. Cross-reference the current transfer ratio specifications with the intended drive conditions.

Selection Notes

Select this component when multiple isolated channels are required within a single package to save board space. Consider the operating temperature range and current transfer ratio variations across different manufacturing batches. Evaluate the input forward voltage drop and output saturation characteristics against the driving logic levels. Ensure the package thermal dissipation capabilities meet the system's power budget.

Part Context

This part belongs to the PC847X series of general-purpose photocouplers from Sharp Microelectronics. The series includes variants with one, two, three, and four channels, identified by the numeric digit following the PC prefix. These devices are widely used in consumer and industrial electronics for galvanic isolation.

Replacement Considerations

Compatible substitutes include other four-channel photocouplers with similar pinouts and isolation ratings. Verify that alternative parts maintain the same collector-emitter voltage and current transfer ratio ranges. Check for equivalent package dimensions and lead configurations to ensure mechanical compatibility.