The STD90N03L-1 is marked obsolete by STMicroelectronics. For existing BOM lines, procurement must turn to the independent surplus and broker channel.
The low Rds(on) keeps conduction losses down in high-current switching applications like DC-DC converters, motor drives, and load switches. Gate charge is 32 nC at 5 V, which gives a reasonable switching speed for a through-hole part in the TO-251-3 (IPak) package.
Housed in a TO-251-3 (IPak) through-hole package with short leads, the STD90N03L-1 mounts into a PCB with a standard hole pattern. The IPak footprint is similar to DPAK but with through-hole leads for manual assembly or rework. Maximum power dissipation is 95 W at the case, so a thermal pad or heatsink interface is expected for continuous high-current operation. The supplier device package is I-PAK.
