BC239C MPSA55-BP BC239CG SS8050-C-AP BC307BG 2SA733-P-BP BC307BRL1 MPS2907A-H-AP BC307BZL1G BC636-16-AP BC307C 2N5551-AP BC307CG 8050SS-D-BP BC327-016 2SA950-Y-AP BC327-016G S8550-C-AP BC327-025 KTA1267-Y-BP