https://www.overseadia.com/en-US/detail/5a33bd5fb3cc88d40626db5d47abf061 STMicroelectronics STB14NK50ZT4 is a powerful surface mount type N Channel MOSFET that offers 500 V, 14A (Tc), and 150W (Tc) for unparalleled performance. With avalanche rating and small outline packing, this MOSFET is perfect for high voltage and high current applications. Though not yet qualified for certification, STB14NK50ZT4 guarantees reliability and superior performance.