The STF10P6F6 is a P-Channel power MOSFET from STMicroelectronics, built on the DeepGATE™ and STripFET™ VI process technology. The TO-220 Full Pack package has an isolated tab, which simplifies heatsink mounting without an insulating pad — useful in metal-enclosure designs where the heatsink is chassis-grounded.
The 60 V Vdss gives 20% margin on a 48 V bus and comfortable headroom on a 24 V rail. The 10 A continuous drain rating is at case temperature 25°C; derate with the thermal curve above that. Input capacitance of 340 pF at 48 V drain-source confirms the switching losses stay modest.
The STF10P6F6 is marked obsolete by STMicroelectronics. For new designs, a current-production P-channel MOSFET in the same voltage and current class should be selected — look at ST's STripFET F7 or similar series with comparable Rds(on) and gate charge. For existing BOM lines already using the STF10P6F6, the part can be sourced through independent distribution on a quoted-to-order basis.