FOD250LSD

Overview

The FOD250LSD is a single-channel photovoltaic output optoisolator from onsemi, housed in an 8-pin SOIC surface-mount package. It provides high-voltage isolation rated at 5000Vrms between input and output circuits. The device features a photovoltaic output structure that generates voltage upon illumination, eliminating the need for external biasing on the output side. Key electrical parameters include a maximum DC forward current of 25 mA and a typical current transfer ratio of 50% at 16 mA input. The output channel supports a continuous current of 8 mA.

Feature Summary

• Photovoltaic output architecture requiring no external power supply for operation
• High isolation voltage rating of 5000Vrms for robust circuit separation
• Single-channel configuration designed for compact signal transmission
• Surface-mount SOIC packaging for automated assembly integration

Applications

• Industrial automation control systems
• Machine vision interface circuits
• Robotics drive isolation
• Data center server power supplies

Procurement Notes

Verify component authenticity through authorized distribution channels only. Confirm lot codes and date codes against manufacturing records to ensure compliance with quality standards. Check for obsolescence status as this specific part number may be discontinued or superseded by newer generations within the same family. Request detailed datasheets and test reports prior to final procurement decisions.

Selection Notes

Select this component when high-voltage isolation is required without complex output biasing networks. The photovoltaic output simplifies design by removing the need for pull-up resistors or separate output voltage rails. Ensure the application voltage requirements align with the 5000Vrms isolation capability. Consider thermal management and PCB layout constraints associated with the SOIC-8 package dimensions during integration.

Part Context

This device belongs to the FOD series of optoisolators manufactured by onsemi, focusing on intelligent power and sensing technologies. The series targets mission-critical applications in industrial energy infrastructure and data centers. The FOD250LSD specifically utilizes photovoltaic technology to provide galvanic isolation, distinguishing it from transistor or logic gate output variants within the broader product line.

Replacement Considerations

The FOD250LSD is listed as obsolete. Verify availability of direct substitutes such as other FOD250 series variants or equivalent photovoltaic optocouplers from onsemi. Ensure replacement parts maintain identical pinout configurations and isolation ratings to avoid redesign efforts.