The MPSA06G is manufactured in a plastic TO-92 case. When looking at the flat side with the leads pointed downward, the three leads emerging from the transistor are, from left to right, the emitter, base, and collector leads. Here is an image showing the pin diagram of this transistor.
Complementary PNP transistor
The complementary PNP transistor to the MPSA06G is the MPSA56G.
SMD Version of MPSA06G transistor
The 2SC2882-Y (SOT-89), 2SC3438-E (SOT-89), 2SC4209-Y (SOT-23), KTC4374Y (SOT-89), MMBTA06 (SOT-23), PMBTA06 (SOT-23), PZTA06 (SOT-223) and SMBTA06 (SOT-23) is the SMD version of the MPSA06G transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.