The SPTECH MJW0281A is a high voltage, high current power NPN transistor in a TO-3PN package and is RoHS compliant. The device is designed for use in switching and linear applications, such as high voltage switching regulators, high frequency amplifiers, and fast switching converters. It can handle a maximum collector-emitter voltage of 800V and has a collector current rating of 4A. It is suitable for operation in temperature ranges of up to 150°C and has an average transition frequency of 80 MHz. It can handle a maximum collector-base voltage of 1500V and has a hFE (DC current gain) between 10 to 80. The device is available in tube, tape and reel, and tray packaging options.