PN4392 is an NPN transistor manufactured by Vishay. It is a high-power transistor with a power rating of 500 mW. It has an ITO-220AB package and uses the standard TO-220AB pinout. It has a maximum collector current of 500 mA, an hFE of 130 at 1mA, a minimum required collector voltage of 20V, and a minimum required emitter voltage of 12V. The PN4392 is a reliable, robust option for a wide variety of applications ranging from motor control systems to consumer electronics.