600 V CoolMOS™ N-channel — what it brings to the switching stage
The Infineon SPD03N60S5 is a 600 V N-channel CoolMOS™ power MOSFET in a TO-252-3 (DPak) surface-mount package. It is rated for 3.2 A continuous drain current at 25 °C case temperature and carries a 1.4 Ohm maximum on-resistance when driven with a 10 V gate signal. The 16 nC typical gate charge keeps switching losses manageable in hard-switched topologies like PFC boost stages, flyback converters, and auxiliary power supplies. Junction temperature spans -55 to 150 °C, so it handles the thermal cycling of outdoor telecom or industrial power supplies without derating at the cold end.
Package and mounting — TO-252-3 (DPak) land pattern
The SPD03N60S5 uses the standard TO-252-3 (DPak) footprint with a single drain tab. The supplier device code is PG-TO252-3-313. The tab is the drain terminal; ensure the PCB copper area under the tab is sized for heat spreading — the 38 W dissipation rating assumes adequate board-level thermal management. No heatsink is needed at moderate loads, but a thermal pad or via array under the tab helps keep the junction below 150 °C in continuous operation.
Lifecycle and compliance — active, no LTB watch
Infineon lists the SPD03N60S5 as Active with no end-of-life notification. ROHS3 compliance is confirmed, so it passes EU material restrictions for new designs. The CoolMOS™ S5 series is a mature, still-shipping portfolio; no second-source or direct replacement is needed for supply continuity. For BOM-freeze planning, this part carries no imminent PCN risk.