FSB50250S

Overview

The FSB50250S is a Smart Power Module (SPM) manufactured by Fairchild Semiconductor, now part of onsemi. It integrates a three-phase MOSFET inverter within an SPM5 package. The device supports a collector-emitter voltage of 500 V and operates with a continuous collector current of 2 A at 25°C. The typical on-resistance is 6.5 Ohms. It functions within a temperature range of -20°C to +150°C and utilizes surface mount technology for installation.

Feature Summary

• Integrates a complete three-phase inverter bridge into a single compact module.
• Includes built-in protection features such as over-current, short-circuit, and over-temperature detection.
• Utilizes low on-resistance MOSFET technology for efficient power conversion.
• Designed for simplified thermal management through direct board mounting.

Applications

• Brushless DC motor drives
• Switched reluctance motor control
• Compressor motor inverters

Procurement Notes

Verify the manufacturer status, as Fairchild Semiconductor was acquired by onsemi. Confirm the specific suffix 'BS' or 'S' matches the required datasheet revision. Check for moisture sensitivity levels and reflow soldering profile requirements during assembly. Ensure the ordering quantity aligns with reel packaging specifications provided by authorized distributors.

Selection Notes

Select this component for applications requiring a compact, integrated solution for three-phase motor control. Consider the 500V rating and 2A current limit when sizing for load requirements. Evaluate the thermal resistance characteristics against the expected operating environment. Compare pin compatibility if replacing existing designs from the same SPM family.

Part Context

This module belongs to the SPM5 series of intelligent power modules. It represents a consolidation of discrete power components into a single package to reduce footprint and parasitic inductance. The series is widely used in appliance and industrial motor control applications where space efficiency and reliability are critical design factors.

Replacement Considerations

Consult official cross-reference lists for equivalents like FSB50250A or FSB50250AB. Verify that substitute parts maintain identical pinout configurations and electrical ratings. Ensure thermal interface material compatibility remains unchanged during any swap.