APT40M42JN

Single FETs, MOSFETs Overview

The APT40M42JN is an N-channel enhancement mode high voltage power MOSFET from Microsemi Corporation, housed in a single die ISOTOP® SOT-227 package. It features a drain-source breakdown voltage of 400V and a continuous drain current of 86A at 25°C case temperature. The device exhibits a maximum on-state resistance of 0.042Ω at VGS=10V. Operating junction temperatures range from -55°C to 150°C with a total power dissipation of 690W.

Single FETs, MOSFETs Feature Summary

• Single-chip ISOTOP® packaging for direct heatsink mounting
• High-voltage capability with 400V drain-source rating
• Low on-state resistance for efficient conduction
• Wide operating temperature range suitable for harsh environments

Single FETs, MOSFETs Applications

• Industrial motor drives
• Power supply inverters
• High-current switching applications

Single FETs, MOSFETs Procurement Notes

Verify the specific revision level (Rev E) against your design requirements. Confirm thermal interface material compatibility with the ISOTOP® base plate. Ensure electrostatic discharge handling procedures are followed during installation. Check datasheet footnotes regarding pulse width limitations for pulsed current ratings.

Single FETs, MOSFETs Selection Notes

Select this component when high voltage isolation and robust mechanical mounting are required. The ISOTOP® package allows for direct screw-down attachment to heatsinks, simplifying thermal management. Consider the 0.042Ω RDS(on) for conduction loss calculations at full load currents up to 86A.

Single FETs, MOSFETs Part Context

This part belongs to the APT series of high-power MOSFETs designed for demanding industrial applications. The ISOTOP® technology integrates the die directly into the package outline, providing superior thermal performance compared to traditional leaded packages. It serves as a reliable solution for high-current switching where space and thermal constraints are critical.

Single FETs, MOSFETs Replacement Considerations

Check pinout compatibility if substituting with other SOT-227 devices. Verify that replacement parts meet the same 400V and 86A specifications. Ensure thermal impedance characteristics are comparable to maintain system cooling efficiency.