This document describes the features and characteristics of the STP14NK50Z, STP14NK50ZFP, STB14NK50Z, STB14NK50Z-1, STW14NK50Z N-channel MOSFET products, including extremely low on-resistance, extremely high dv/dt capability, 100% avalanche tested, minimized gate charge, very low intrinsic capacitances, and very good manufacturing repeatability.