FSTU16862QSPX

Overview

The FSTU16862QSPX is a silicon N-channel MOSFET manufactured by Fairchild Semiconductor, now part of onsemi. It features a 600 V drain-source breakdown voltage and a continuous drain current rating of 16 A. The device utilizes PowerTrench technology to achieve low on-resistance and fast switching speeds. It is housed in a TO-263AB (D2PAK) surface-mount package with three leads. The component is designed for high-efficiency power conversion applications requiring robust performance under thermal stress.

Feature Summary

• PowerTrench technology for optimized Rds(on) and switching performance
• High voltage capability suitable for industrial power supplies
• Surface-mount D2PAK package for efficient thermal dissipation

Applications

• DC-DC converters
• Synchronous rectification
• Industrial motor control

Procurement Notes

Verify the manufacturer designation as onsemi due to corporate acquisition history. Confirm the specific suffix 'QSPX' matches datasheet requirements for automotive or qualified grades if applicable. Ensure RoHS compliance status aligns with project specifications. Cross-reference the exact package outline dimensions against PCB footprint libraries before procurement.

Selection Notes

Select this component for designs requiring 600V isolation with moderate current handling. Evaluate thermal resistance parameters relative to the heatsinking strategy. Compare total gate charge against available driver capabilities to ensure adequate switching speed. Verify that the operating junction temperature range meets the environmental constraints of the target application.

Part Context

This device belongs to the PowerTrench family of MOSFETs from Fairchild Semiconductor. These components are engineered for high-density power applications. The series emphasizes low conduction losses and improved thermal characteristics compared to standard planar technologies. It represents a transition period product between Fairchild branding and onsemi integration.

Replacement Considerations

Consult official cross-reference guides for direct equivalents. Verify pinout compatibility and thermal pad configurations. Ensure replacement devices meet or exceed the 600V and 16A ratings. Check for any changes in gate threshold voltage that might affect drive circuitry.