2SK1155, 2SK1156 are bipolar MOSFETs with low on-resistance, high switching speed, low drive current, suitable for switching regulator and DC-DC converter.
The 2SK1155 and 2SK1156 are silicon N‑channel MOSFETs designed for high‑speed power switching applications such as switching regulators and DC‑DC converters. They feature low on‑resistance, fast switching, low drive current and no secondary breakdown.
The devices are supplied in a TO‑220AB package and are rated for up to 450 V (2SK1155) or 500 V (2SK1156) drain‑to‑source voltage, 5 A continuous drain current, and 50 W power dissipation. Detailed electrical characteristics, thermal impedance data and typical output curves are provided for design reference.