600 V, 2.4 A — what the SuperMESH™ ratings mean for your offline supply
The STD3NK60ZT4: Its 600 V drain-source breakdown voltage (Vdss) provides headroom for universal-input AC-DC stages. Gate charge (Qg) is 11.8 nC at 10 V. Input capacitance (Ciss) of 311 pF at 25 V drain-source helps keep switching losses low.
NRND status — plan your last-time-buy or select a replacement now
This means STMicroelectronics is not actively promoting this part for new projects. For existing BOM lines, you have two paths: secure last-time-buy (LTB) inventory through the independent channel while stock remains available, or qualify a pin-compatible replacement. The base product number is STD3NK60, and parts sharing this base (STD3NK60Z, STD3NK60T4) are in the same SuperMESH™ family — but confirm pin compatibility and parametric overlap from the datasheet before swapping.
DPAK footprint and thermal reality
The TO-252 (DPAK) surface-mount package with two leads and a tab is the standard medium-power SMD footprint. Power dissipation is 45 W (Tc).