BUY 2SJ49/2SK134 https://www.utsource.net/itm/p/1453396.html
LOW FREQUENCY POWER AMPLIFIER
Description: 2SJ49/2SK134 is a pair of complementary power MOSFETs in a TO-3 package. Features: Low on-resistance Low gate charge High speed switching High voltage capability Low input capacitance Low output capacitance Applications: DC-DC converters Motor control Power supply Switching regulators Battery chargers (For reference only)