4N28300W

Overview

The onsemi 4N28300W is a single-channel transistor output optocoupler featuring a photodarlington detector. It provides high isolation capability with an insulation voltage of 5300 Vrms. The device operates within a temperature range of -55°C to +100°C and is housed in a PDIP-6 package. Key electrical parameters include a maximum collector-emitter voltage of 30 V, a forward current of 80 mA, and a power dissipation of 250 mW.

Feature Summary

• Photodarlington output configuration for high gain
• High isolation voltage rating
• Wide operating temperature range

Applications

• Industrial control systems
• Signal isolation circuits
• Power supply feedback loops

Procurement Notes

Verify component authenticity through authorized channels due to discontinued status. Confirm RoHS compliance details via official documentation. Check specific lot markings against datasheet requirements. Ensure storage conditions meet manufacturer specifications to maintain reliability. Validate pinout compatibility during integration planning.

Selection Notes

Evaluate the photodarlington output type for applications requiring higher current transfer ratios compared to standard phototransistors. Consider the 5300 Vrms isolation rating for safety-critical designs. Assess thermal management needs given the 250 mW power dissipation limit. Verify package dimensions fit the intended PCB layout constraints.

Part Context

This component belongs to the 4N28 series of optocouplers from onsemi. It shares functional similarities with other devices in the family but offers specific packaging and performance characteristics tailored for through-hole mounting. The series is designed for general-purpose isolation tasks.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.