STFW4N150

Single FETs, MOSFETs Overview

The STFW4N150 is an N-channel PowerMESH power MOSFET manufactured by STMicroelectronics, housed in a fully isolated TO-3PF plastic package. It features a breakdown voltage of 1500 V and a typical on-resistance of 6 Ohms at room temperature, with a maximum rating of 5 Ohms in some documentation contexts, supporting a continuous drain current of 4 A. The device utilizes the consolidated strip-layout-based MESH OVERLAY process to minimize intrinsic capacitances and gate charge (Qg), enabling high-speed switching capabilities. All units are 100% avalanche tested to ensure robustness under transient conditions.

Single FETs, MOSFETs Feature Summary

• Utilizes the consolidated strip-layout-based MESH OVERLAY process for optimized performance
• Features minimized intrinsic capacitances and gate charge for high-speed switching
• Includes 100% avalanche testing for enhanced reliability
• Housed in a fully isolated TO-3PF plastic package

Single FETs, MOSFETs Applications

• High-voltage industrial power supplies
• Resonant converter circuits
• Motor drive systems requiring high blocking voltage

Single FETs, MOSFETs Procurement Notes

Verify the specific datasheet revision when ordering, as on-resistance specifications may vary slightly between 5 Ohm and 6 Ohm typ. values across different document iterations. Confirm that the TO-3PF package requirement aligns with your thermal management design, as this component requires through-hole mounting. Ensure compatibility with high-voltage gate drive signals given the 1500 V rating.

Single FETs, MOSFETs Selection Notes

Select the STFW4N150 for applications demanding very high voltage blocking capability combined with moderate current handling in a standard through-hole package. The PowerMESH technology offers improved performance over comparable standard parts from other manufacturers. Consider the thermal resistance of the TO-3PF package when designing heat dissipation solutions for continuous 4 A operation.

Single FETs, MOSFETs Part Context

This component belongs to STMicroelectronics' PowerMESH series of high-voltage MOSFETs. The series leverages proprietary overlay processes to achieve low on-resistance and fast switching speeds. The STFW4N150 specifically targets the >700 V segment, providing a rugged solution for industrial and energy conversion applications where reliability and high voltage isolation are critical.

Single FETs, MOSFETs Replacement Considerations

The STW4N150 is a related variant offering similar electrical characteristics but packaged in a TO-247-3 format instead of TO-3PF. Designers must verify pinout compatibility and mechanical footprint differences before substituting. Other high-voltage MOSFETs from different manufacturers may match the 1500 V rating but will differ in switching speed and thermal properties.