2N3904
The 2N3904 (P/N 151-0190-00,151-0224-00) is a general-purpose silicon NPN transistor.
The 2N3906 is the complementary (PNP) part.
The 2N3904 (P/N 151-0190-00,151-0224-00) is a general-purpose silicon NPN transistor.
The 2N3906 is the complementary (PNP) part.