4N38SR2M

Transistor, Photovoltaic Output Optoisolators Overview

The onsemi 4N38SR2M is a single-channel optocoupler featuring a DC input and a phototransistor output with a base terminal. It utilizes a surface-mount 6-SMD (鸥翼) package. Key electrical parameters include a maximum collector-emitter voltage of 80V, a peak forward current of 80 mA, and a typical forward voltage of 1.15V. The device offers an isolation voltage of 4170Vrms and supports an operating temperature range from -40°C to 100°C. Typical switching times are 5µs for both turn-on and turn-off. The minimum current transfer ratio is 20% at 10mA input.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Integrated base terminal on the phototransistor output for improved switching speed and linearity control
• High-voltage insulation capability suitable for isolating high-potential circuits
• Surface-mount construction designed for automated assembly processes

Transistor, Photovoltaic Output Optoisolators Applications

• Industrial communication interface isolation
• Solid-state relay driver circuits
• Microcontroller I/O isolation in embedded systems

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix 'R2M' to confirm the reel packaging configuration, as this affects handling and storage requirements. Ensure compliance with RoHS3 standards if required by your manufacturing process. Check the latest Product Change Notification (PCN) documents for any updates regarding assembly sources or material declarations before finalizing procurement plans.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when a surface-mount footprint is required for space-constrained designs. The integrated base pin allows for faster discharge of the transistor's base charge, offering better performance than standard variants without a base connection. Confirm that the 80V output voltage rating meets the load requirements of the isolated side circuitry.

Transistor, Photovoltaic Output Optoisolators Part Context

This part belongs to the 4N38 family of optocouplers, which are widely used general-purpose isolation devices. The 4N38SR2M variant specifically adapts the traditional through-hole design into a surface-mount form factor to meet modern PCB assembly needs while maintaining similar electrical characteristics to its DIP counterparts.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

The 4N38SM is a parameter-equivalent alternative available from onsemi. Verify package compatibility and lead time differences when substituting.