FOD617ASD

Overview

The FOD617ASD is a photovoltaic output optoisolator manufactured by onsemi. It features a single channel configuration housed in a 4-SMD surface-mount package. The device provides an insulation voltage of 5000 Vrms, ensuring robust electrical isolation between input and output circuits. Key electrical parameters include a maximum collector-emitter saturation voltage of 400 mV and a power dissipation rating of 200 mW. The component operates within a temperature range of -55°C to +100°C. It utilizes a gallium arsenide infrared LED coupled with a photovoltaic output structure for signal transmission.

Feature Summary

• Photovoltaic output architecture eliminates the need for external bias voltage on the output side
• High isolation voltage capability ensures safety in high-voltage circuit applications
• Surface-mount packaging facilitates automated assembly and compact board designs

Applications

• Data communication interface isolation
• Microprocessor system isolation
• Solid-state relay driver circuits

Procurement Notes

Verify the specific suffix designation against official manufacturer documentation to confirm pinout and performance characteristics. Confirm RoHS compliance status through current datasheets as regulatory requirements may evolve. Check for obsolescence notices or lifecycle changes directly from onsemi before finalizing procurement plans.

Selection Notes

Select this component when zero-offset voltage and low leakage current are critical for precision analog signal isolation. The photovoltaic output type requires careful consideration of load impedance and switching speed limitations compared to transistor outputs. Ensure the application voltage does not exceed the specified collector-emitter ratings under all operating conditions.

Part Context

This part belongs to the FOD617 series of optocouplers, which are designed for general-purpose isolation tasks. The series includes various packages and output types, with the ASD variant specifically denoting the surface-mount configuration. It serves as a standard solution for galvanic isolation in industrial and consumer electronics where reliable signal transfer across potential differences is required.

Replacement Considerations

Direct replacements must match the photovoltaic output topology and 4-SMD footprint. Verify that substitute components offer equivalent isolation voltage and thermal performance characteristics compatible with the existing design constraints.