2SB647L 2SB647L-B-AP 2SB647L-C-AP 2SB647L-C-T9N-B 2SB647L-C-T9N-K 2SB647L-D-AP 2SB647L-D-T9N-B 2SB647L-D-T9N-K 2SB647-TA 2SB647TZ-EQ