2SB857-D-BP 2SB857-D-T6C-K 2SB857G-D 2SB857G-D-T6C-K 2SB857L 2SB857L-B-T6C-K 2SB857L-B-TN3-R 2SB857L-C-TA3-T 2SB857L-C-TN3-R 2SB857L-D