2SB1260L-R-TN3-R 2SB1260-P 2SB1260-P-TP 2SB1260-P-TP-HF 2SB1260Q 2SB1260-Q 2SB1260-Q-TP-HF 2SB1260R 2SB1260-R 2SB1260R code BE