Thermal and package reality
The TO-220 Full Pack (PG-TO220-3-31) isolates the tab electrically — no insulating pad needed, but the junction-to-case thermal resistance is higher than a standard TO-220. Maximum power dissipation is 39 W at case temperature, derated above that point.
Gate drive and input capacitance
Gate threshold voltage is 3.9 V maximum at 250 µA drain current, so a 10 V gate drive is recommended to achieve the rated Rds(on).
