900V, 15A, 340mOhm — the C3 switching-loss profile
The IPA90R340C3XKSA2: The 94nC total gate charge and 2400pF input capacitance at 100V Vds define the switching energy per cycle — at a 100kHz hard-switched frequency, the gate drive current needed is about 9.4mA average, and the capacitive turn-on loss scales with Coss. This part is sized for the 100-300W range in flyback, PFC, or LLC converters where 900V margin covers universal AC input with derating.
TO-220 Full Pack — isolated tab, no pad needed
The PG-TO220-FP (full-pack) package has a fully isolated backside tab — no insulating pad or washer is required between the device and the heatsink. This simplifies assembly in through-hole designs and eliminates the thermal interface gap that a pad introduces. Maximum power dissipation is 35W at case temperature, and the junction range spans -55°C to 150°C, covering industrial ambient environments. The through-hole mounting suits single-sided or double-sided boards where the heatsink attaches directly to the chassis or a dedicated heatsink.