PC3H7

Transistor, Photovoltaic Output Optoisolators Overview

The PC3H7 is a single-channel transistor output optocoupler manufactured by Sharp Microelectronics. It features an NPN phototransistor output and operates with a DC input. The device provides an isolation voltage of 2500 Vrms and utilizes a surface-mount SMD-4 package. Key electrical parameters include a maximum collector-emitter voltage of 80 V, a forward current of 50 mA, and a power dissipation of 170 mW. The unit supports an operating temperature range from -30°C to +100°C.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Provides galvanic isolation between input and output circuits using optical transmission.
• Features an open-collector NPN phototransistor output configuration for logic interfacing.
• Designed for surface-mount assembly in compact electronic systems.

Transistor, Photovoltaic Output Optoisolators Applications

• Signal isolation in industrial control systems
• Interface circuits for microprocessor-based logic systems
• Switching applications requiring low input drive current

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix code (e.g., J, C, 12N) as it determines the Current Transfer Ratio and Forward Current ratings. Confirm availability status, as many variants are discontinued. Ensure the selected package matches the PCB footprint requirements. Check RoHS compliance documentation for regulatory adherence. Validate thermal performance within the specified operating temperature range during integration.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select based on required Current Transfer Ratio and input current constraints. Higher CTR variants may require lower input currents but offer less linearity. Verify that the 80V collector voltage meets circuit load requirements. Ensure the SMD-4 package dimensions fit the design layout. Consider the 170mW power dissipation limit for thermal management in enclosed spaces.

Transistor, Photovoltaic Output Optoisolators Part Context

The PC3H7 belongs to Sharp's PC3H7 series of transistor output optocouplers. This family focuses on providing reliable signal isolation in small form factors. Variants within the series share common electrical characteristics like isolation voltage and package type but differ in gain specifications. The series is designed for general-purpose digital isolation tasks.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Direct substitutes include other Sharp PC3H7 variants with different suffixes (e.g., PC3H7CJ, PC3H712NIP). Cross-brand replacements must match the 2500Vrms isolation, SMD-4 package, and NPN output type. Verify pinout compatibility and electrical limits before substitution.