4N28G

Overview

The 4N28G is a single-channel optoisolator manufactured by Isocom Components 2004 LTD. It features a transistor output configuration housed in a 6-pin DIP package. The device provides an isolation voltage of 5300Vrms, ensuring robust electrical separation between input and output circuits. This component is designed for applications requiring reliable signal transmission across isolated domains with high voltage withstand capabilities.

Feature Summary

• Single-channel optical isolation architecture
• Transistor-based output stage
• High dielectric isolation voltage rating

Applications

• General-purpose signal isolation
• Microprocessor interface circuits
• Logic level shifting

Procurement Notes

Verify the manufacturer designation as Isocom Components 2004 LTD when sourcing this specific variant. Confirm the 6-pin DIP package style matches your PCB footprint requirements. Ensure the single-channel transistor output specification aligns with your circuit design needs before procurement.

Selection Notes

Select this component when a standard single-channel optocoupler with transistor output is required. The 5300Vrms isolation rating supports general industrial and commercial isolation tasks. Consider the 6-pin DIP form factor for through-hole mounting compatibility in legacy or standard designs.

Part Context

Isocom Components 2004 LTD specializes in infrared optoelectronic devices, including optocouplers and optoswitches. The company has over 40 years of industry expertise, originating from Litronix management and engineering teams. Their product portfolio focuses on reliable isolation components for various electronic applications.

Replacement Considerations

Cross-reference with other 4N28 series variants from different manufacturers if supply constraints exist. Verify pinout compatibility and electrical specifications such as current transfer ratio and isolation voltage to ensure functional equivalence without redesigning the host circuit.