80 V, 75 A, 4 mOhm — the switching MOSFET for a 48 V or 12 V rail
The IPA040N08NM5SXKSA1 is an N-channel OptiMOS™ power MOSFET from Infineon, rated for 80 V drain-source breakdown and 75 A continuous drain current at 25°C case temperature. The 4 mOhm max on-resistance at 38 A and 10 V gate drive keeps conduction losses low in a 48 V telecom rectifier or a 12 V automotive DC-DC stage. It comes in the TO-220 Full Pack (PG-TO220-FP) — the fully isolated tab means no thermal pad or insulator is needed between the back of the part and the heatsink. That saves assembly time and avoids the extra thermal resistance of a silicone pad.
Switching performance — gate charge and capacitance for the drive budget
Total gate charge is 93 nC at 10 V gate drive. For a 100 kHz hard-switched converter, the average gate-drive current needed is Qg × fsw = 9.3 mA — well within the output capability of a standard driver like the 2EDN or IRS21867. Input capacitance is 6400 pF at 40 V drain-source. This sets the switching energy and the driver's peak current requirement; a 2 A gate driver charges Ciss in about 3.2 ns at the Miller plateau, which keeps cross-conduction short. The drive voltage range is 6 V to 10 V for achieving the rated Rds(on) — 10 V gives the full 4 mOhm, but a 6 V drive still turns the FET on hard enough for most 5 V-logic gate-drive schemes.
Through-hole TO-220 Full Pack — rework and mounting
The TO-220 Full Pack is a through-hole package with a fully moulded plastic back — no exposed metal tab. That means the mounting screw hole is electrically isolated from the drain, so the heatsink can be chassis ground without an insulating washer. Rework is straightforward: the three leads are 0.8 mm thick and the plastic body handles 260°C peak soldering temperature per JEDEC. A standard soldering iron or a hot-air station with a nozzle that covers all three pins will lift the part cleanly without pad damage — just pre-tin the board side and wick the old solder first.
Active production, RoHS3, and sourcing
No stock-holding claim — quoted to order per your BOM quantity.