600 V, 34 A power switch for primary-side and motor-drive stages
The STF43N60DM2: This puts it squarely in the primary-side switching position of a 300–400 W offline SMPS, or as the inverter leg in a fractional-horsepower motor drive. The TO-220FP full-pack package isolates the tab electrically, so no insulating pad or washer is needed between the device and the heatsink.
Gate charge and switching behaviour
A gate driver sourcing 1 A can charge the gate in roughly 56 ns, though the practical switching speed is limited by the input capacitance of 2500 pF at Vds = 100 V and the gate-drive loop inductance. The MDmesh DM2 series includes a fast-recovery body diode, which reduces reverse-recovery losses in bridge topologies like LLC resonant converters or phase-shifted full bridges.
Thermal and environmental ratings
The TO-220FP package's junction-to-case thermal resistance is specified through the 40 W power dissipation limit at Tc = 25°C — derate above that case temperature per the datasheet curve.