D1047 is a NPN transistor manufactured in TO-3P package. The transistor is mainly designed for audio amplification and power amplification purposes. The transistor is having good specs due to which it is not only limited to above mentioned purposes and can be used for variety of other applications. The maximum collector-emitter voltage is 140V due to which it can be used in many different high voltage applications under 140V. The maximum collector-emitter value of 140V doesn’t mean that you cannot use this transistor in low power and battery operated circuits the maximum collector-emitter voltage value only describes the maximum voltage load this transistor can withstand.
Moreover the maximum collector current is 12A which makes it ideal to use as a switch in variety of applications, the total power dissipation is 100 Watts, the maximum transition frequency is 15MHz and the maximum DC current gain of the transistor is 200.
