4N35FR2VM

Transistor, Photovoltaic Output Optoisolators Overview

The 4N35FR2VM is a high-speed optocoupler manufactured by onsemi, featuring an AlGaAs infrared LED coupled to a silicon phototransistor. It provides electrical isolation with a rated voltage of 7.5 kV and is housed in a compact 6-SMD surface-mount package. The device includes a built-in base terminal for the phototransistor, allowing for adjustable speed and sensitivity characteristics. Designed for industrial applications, it offers reliable signal transmission across isolation barriers while maintaining low power consumption and high common-mode rejection capabilities.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• High isolation voltage rating of 7.5 kV for robust barrier protection
• Integrated base terminal enables customizable switching speed and gain control
• AlGaAs LED source ensures efficient infrared coupling and high CTR stability
• Surface-mount 6-SMD package facilitates automated assembly and space-constrained designs

Transistor, Photovoltaic Output Optoisolators Applications

• Industrial communication interfaces requiring galvanic isolation
• Solid-state relay drivers in automation systems
• Microcontroller input/output isolation for noise immunity
• Power supply feedback loops for safety compliance

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix FR2VM against official onsemi documentation to confirm the exact tape-and-reel packaging configuration and lead-free status. Ensure compatibility with standard SMD reflow profiles. Confirm that the 7.5 kV isolation rating meets the system's safety requirements under operating conditions. Check for any recent lifecycle notices or obsolescence warnings directly from the manufacturer before finalizing procurement plans.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when high-speed digital isolation is required alongside adjustable phototransistor performance via the base pin. The 6-SMD form factor suits PCBs with limited real estate. Consider the forward voltage of the internal LED and the collector-emitter saturation voltage of the transistor for drive circuit design. Ensure the operating temperature range aligns with the intended industrial environment specifications.

Transistor, Photovoltaic Output Optoisolators Part Context

This part belongs to onsemi’s portfolio of discrete optoelectronic components designed for signal isolation. It complements other optocouplers in the series by offering a balance between switching speed and isolation capability. The inclusion of the base terminal distinguishes it from standard two-terminal devices, providing designers with additional flexibility in optimizing response times for specific application needs.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Direct replacements must match the 6-SMD package, 7.5 kV isolation rating, and presence of a base terminal. Verify pinout compatibility to avoid redesigning the footprint. Cross-reference datasheets for equivalent switching speeds and current transfer ratios to ensure functional parity in existing circuits.

Transistor, Photovoltaic Output Optoisolators FAQ

What is the function of the base terminal on the phototransistor?

The base terminal allows external connection to adjust the switching speed and sensitivity of the phototransistor, enabling optimization for specific application requirements.

What type of light emitter is used in this optocoupler?

It utilizes an Aluminum Gallium Arsenide (AlGaAs) infrared LED as the light source for efficient coupling to the silicon phototransistor.