FOD814A300W

Overview

The FOD814A300W is a single-channel transistor output optocoupler from onsemi, housed in a 4-DIP package. It features a 5000Vrms isolation voltage and supports AC/DC input signals. The device offers a collector-emitter saturation voltage of up to 200mV and a maximum DC forward current of 50mA. Current transfer ratios range from 20% to 300% at 1mA input. Typical switching times are 4µs rise and 3µs fall. Operating temperatures span -55°C to 110°C.

Feature Summary

• Provides high-voltage electrical isolation between input and output circuits
• Supports both AC and DC signal inputs for versatile interface applications
• Delivers fast switching speeds suitable for digital communication
• Features low collector-emitter saturation voltage for efficient power handling

Applications

• Industrial control systems requiring galvanic isolation
• Solid-state relay driver circuits
• Microcontroller interface isolation
• Power supply feedback loops

Procurement Notes

Verify the specific suffix '300W' corresponds to the required 4-DIP packaging configuration. Confirm that the 5000Vrms isolation rating meets system safety standards. Ensure operating temperature ranges align with environmental conditions. Check for RoHS compliance documentation if required by project specifications.

Selection Notes

Select this component when high isolation voltage and moderate speed are required. Compare current transfer ratio variations across temperature ranges. Consider package size constraints relative to PCB layout. Evaluate thermal dissipation requirements under continuous operation conditions.

Part Context

This part belongs to the FOD814 series of transistor output optocouplers. It serves as a replacement for legacy H11AA814 devices. The series is designed for general-purpose isolation tasks. It maintains compatibility with standard DIP footprints.

Replacement Considerations

FOD814A300W is listed as a direct substitute for the discontinued H11AA814W. Verify pinout compatibility before implementation.