4N28XG

Overview

The 4N28XG is a single-channel optoisolator manufactured by Isocom Components 2004 LTD. It features a transistor output with base configuration housed in a 6-pin DIP package. The device provides an isolation voltage rating of 5300Vrms, ensuring robust electrical separation between input and output circuits.

Feature Summary

• Integrates an infrared emitting diode with a phototransistor detector for signal transmission
• Provides high-voltage electrical isolation via internal dielectric barrier
• Includes a base terminal on the output transistor for enhanced switching control

Applications

• Industrial control systems requiring galvanic isolation
• Microprocessor interface circuits
• Signal isolation in noisy environments

Procurement Notes

Verify the specific manufacturer designation against official Isocom Components 2004 LTD documentation to confirm authenticity. Ensure the part number matches the exact suffix requirements for your application. Cross-reference technical specifications with the latest datasheet to validate performance parameters before procurement.

Selection Notes

Select this component when a standard transistor-output optocoupler with base access is required. The 6-DIP form factor suits through-hole mounting. Confirm that the 5300Vrms isolation rating meets system safety standards. Evaluate current transfer ratio requirements against typical values found in official specifications.

Part Context

This device belongs to the general family of single-channel transistor output optoisolators. It shares functional similarities with other industry-standard parts like the 4N28 series. The component serves as a fundamental building block for isolating low-voltage digital signals from higher voltage loads or noisy power lines.

Replacement Considerations

Consult official substitution guides for compatible equivalents. Verify pinout compatibility and electrical ratings match the original design requirements before replacing.