nsistors 2SB817/2SD1047 140V/12A AF 60W Output Applications Features · Capable of being mounted easily because of onepoint fixing type plastic molded package (Interchangeable with TO-3). · Wide ASO because of on-chip ballast resistance. · Good depenedence of fT on current and excellent high frequency responce. Package Dimensions unit:mm 2022A [2SB817/2SD1047] The descriptions in parentheses are for the 2SB817 only : other descriptions than those in parentheses are common to the 2SB817 and 2SD1047.