2SB1440R 2SB1440-R 2SB1440-R(TX) 2SB1440-R(TX)/2SB14400TL 2SB1440-R(TX)+ 2SB1440R1KU 2SB1440S 2SB1440-S 2SB1440-S(TX) 2SB1440-S(TX)+