PNP general-purpose transistors in a small SOT23 (TO-236AB), Surface-Mounted Device (SMD) plastic package. Table 1. Product overview Type number Package NPN complement Nexperia JEDEC BC856-Q SOT23 TO-236AB BC846-Q BC856A-Q BC846A-Q BC856B-Q BC846B-Q BC857-Q BC847-Q BC857A-Q BC847A-Q BC857B-Q BC847B-Q BC857C-Q BC847C-Q BC858B-Q BC848B-Q