View 2sd1047 datasheet:

Ordering number:680F PNP Epitaxial Planar Silicon Transistors NPN Triple Diffused Planar Silicon Transistors 2SB817/2SD1047 140V/12A AF 60W Output Applications Features Package Dimensions · Capable of being mounted easily because of one- unit:mm point fixing type plastic molded package (Inter- 2022A changeable with TO-3). [2SB817/2SD1047] · Wide ASO because of on-chip ballast resistance. · Good depenedence of fT on current and excellent high frequency responce. The descriptions in parentheses are for the 2SB817 only : other descriptions than those in parentheses are common to the 2SB817 and 2SD1047. 1 : Base 2 : Collector 3 : Emitter SANYO : TO-3PB Specifications Absolute Maximum Ratings at Ta = 25?C Parameter Symbol Conditions Ratings Unit Collector-to-Base Vol