4N38ASMT&R

Transistor, Photovoltaic Output Optoisolators Overview

The 4N38ASMT&R is a single-channel surface-mount optocoupler manufactured by Isocom Components. It features an infrared LED input and a phototransistor output with a base lead for improved switching performance. The device provides electrical isolation with a maximum isolation voltage of 5300 Vrms. Key electrical parameters include a maximum forward current of 60 mA, a typical forward voltage of 1.5 V, and a collector-emitter breakdown voltage of 80 V at 1 mA. The package type is a 6-pin surface-mount DIP.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Integrates an infrared emitting diode with a phototransistor detector for signal transmission
• Includes a dedicated base terminal on the output transistor to enhance switching speed and sensitivity
• Provides high-voltage electrical isolation between input and output circuits

Transistor, Photovoltaic Output Optoisolators Applications

• Industrial control systems requiring signal isolation
• Data communication interfaces
• Microprocessor system isolation

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix 'DG' or other variants if present in ordering codes, as they may indicate tape-and-reel packaging or specific binning. Confirm that the 6-pin surface-mount package matches the PCB footprint requirements. Ensure the 5300 Vrms isolation rating meets the safety standards required for the target application environment.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when a phototransistor output with a base connection is needed for faster response times compared to standard versions without a base lead. The surface-mount format is suitable for automated assembly processes. Verify that the 60 mA maximum forward current and 80 V collector-emitter voltage are sufficient for the intended load conditions.

Transistor, Photovoltaic Output Optoisolators Part Context

This part belongs to the 4N38 series of optocouplers, which are widely used for general-purpose isolation. The ASMT&R designation indicates the surface-mount variant with reel packaging. It serves as a compact alternative to through-hole DIP packages while maintaining similar electrical characteristics for circuit isolation tasks.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Compatible substitutes include the 4N38XSMT&R, which shares the same channel count and isolation voltage but may differ in current transfer ratio specifications.