PC357N3

Transistor, Photovoltaic Output Optoisolators Overview

The PC357N3 is a single-channel transistor output optocoupler from Sharp Microelectronics, housed in a 4-pin Mini-Flat surface-mount package. It provides electrical isolation with a rated voltage of 3750Vrms. The device features a typical rise and fall time of 18μs, supporting moderate-speed signal transmission. Key electrical parameters include a maximum forward voltage of 1.4V, a maximum input current of 50mA, and a current transfer ratio ranging from 50% to 600%. It operates within a temperature range of -30°C to 100°C.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Provides galvanic isolation between input and output circuits using a phototransistor configuration.
• Designed for noise reduction in digital and analog signal transmission applications.
• Utilizes a compact Mini-Flat surface-mount package for efficient PCB integration.

Transistor, Photovoltaic Output Optoisolators Applications

• Signal isolation in industrial control systems
• Noise reduction in communication interfaces
• Digital signal transmission in embedded systems

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix (e.g., N3, NJ) as it denotes CTR ranking or tape/reel packaging variations. Confirm RoHS compliance status for the exact orderable part number. Check for end-of-life notices, as some variants may be obsolete. Ensure the selected component matches the required isolation voltage and operating temperature range for the target application environment.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select based on the required Current Transfer Ratio (CTR) ranking, indicated by suffixes such as 'J' or 'L'. Verify that the 3750Vrms isolation rating meets safety standards for the application. Consider the 18μs switching speed for compatibility with signal frequencies. Ensure the Mini-Flat footprint aligns with the PCB layout constraints.

Transistor, Photovoltaic Output Optoisolators Part Context

The PC357N3 belongs to Sharp's PC357NJ series of high-isolation voltage optocouplers. These components are designed for general-purpose signal isolation where robust electrical separation is required. The series offers various CTR rankings to accommodate different drive requirements while maintaining a consistent physical form factor and isolation performance profile.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

PC357N3TJ00F is a documented variant within the same family. Verify pinout compatibility and CTR specifications when substituting. Other Sharp Mini-Flat optocouplers may serve as alternatives if isolation and speed requirements are met.