80 V, 100 A, 9 mOhm — the switching-loss envelope in a TO-220
The STP100N8F6: The 9 mOhm max on-resistance at 50 A and 10 V gate drive keeps conduction losses under 45 W at full rated current — the 176 W power dissipation ceiling leaves headroom for switching losses in hard-switched topologies.
Through-hole TO-220 — board-fit and thermal path
The TO-220-3 through-hole package mounts into a standard 0.100-inch pitch footprint with the tab as the drain terminal.
Active lifecycle and compliance
The closest through-hole N-channel peers in the STripFET family are the STP120NF10 (100 V, 10.5 mOhm, 110 A) and the STP185N55F3 (55 V, 3.8 mOhm, 120 A). The STP120NF10 is a drop-in replacement for higher voltage margin at the cost of higher on-resistance; the STP185N55F3 offers lower conduction loss but only 55 V drain rating. Neither is a pin-compatible second source — the TO-220 footprint is identical, but the gate charge and capacitance differ, so the drive circuit may need adjustment.