Transistor

2SB647 Tranistor
Low frequency power amplifier
Complementary pair with 2SD667/A

2SB633 Tranistor
85V/6A, AF 25 to 35W Output Applications

2SB554 Transistor Power amplifier Application
Complementary to 2SD424

2SB539 PNP Power Transistors

2SB1375 Transistor
SI-P NF-L 60V 3A 25W 9MHz