Gate drive and switching — 62 nC at 10 V
Gate charge of 62 nC at 10 V is moderate for a 550 V, 33 A device. A typical gate-drive IC or PWM controller output can switch it in the tens of nanoseconds with a reasonable drive resistor. The 2670 pF input capacitance at 100 V drain-source confirms the gate-drive current needed for a given rise time — budget around 0.5 A peak drive for 50 ns edges.
Through-hole TO-220 — field-swappable
The TO-220-3 package with through-hole mounting is a field-serviceable form factor. No hot-air station needed — a soldering iron and a desoldering pump or wick is enough to swap it on site. The tab is the drain, and the gate and source pins are clearly marked on the package face; orientation is unambiguous even under a work light in a parking lot.
STMicroelectronics lists the STP36N55M5 as obsolete. If you are filling a BOM line for a legacy design, this is a broker-sourced part; for a new design, look at ST's current MDmesh series for a pin-compatible replacement.