4N92

Single Bipolar Transistors Overview

The Fairchild Semiconductor 4N92 is a high-voltage phototransistor output optocoupler designed for signal isolation applications. It features a gallium arsenide infrared LED coupled to a phototransistor, providing electrical isolation between input and output circuits. The device offers high collector-emitter voltage capability, making it suitable for interfacing low-voltage logic with higher voltage loads. Key electrical characteristics include a minimum current transfer ratio and specific isolation voltage ratings defined in the official datasheet.

Single Bipolar Transistors Feature Summary

• Provides electrical isolation between control and load circuits
• Integrates an infrared LED with a high-voltage phototransistor
• Designed for reliable signal transmission in isolated environments

Single Bipolar Transistors Applications

• Industrial control systems requiring circuit isolation
• Power supply feedback loops
• Signal interfacing between microcontrollers and high-voltage components

Single Bipolar Transistors Procurement Notes

Verify the manufacturer marking and part number against official Fairchild Semiconductor documentation to ensure authenticity. Confirm that the component meets RoHS compliance requirements if specified for your project. Request test reports or quality certificates from authorized distributors to guarantee component integrity and performance standards.

Single Bipolar Transistors Selection Notes

Select this component when high-voltage isolation is required between low-power control signals and higher-voltage loads. Consider the current transfer ratio and isolation voltage specifications relative to the target application's electrical requirements. Ensure compatibility with existing circuit designs regarding pin configuration and thermal management needs.

Single Bipolar Transistors Part Context

The 4N92 belongs to the family of optocouplers produced by Fairchild Semiconductor, now part of onsemi. These devices are widely used in electronic circuits where galvanic isolation is necessary to protect sensitive components from high voltages or noise. The phototransistor output type makes it suitable for digital signal transmission across isolation barriers.

Single Bipolar Transistors Replacement Considerations

Consult official cross-reference lists for compatible substitutes such as the 4N35 or similar high-voltage phototransistor optocouplers. Verify pinout compatibility and electrical parameter equivalence before substitution. Ensure any replacement maintains the required isolation voltage and current transfer ratio for the specific application.