2N2222A by Texas Instruments is a small signal NPN bipolar junction transistor (BJT) with a max collector-emitter voltage of 40V and a max collector current of 0.8A. It is commonly used for switching applications due to its fast turn on/off times (35ns/285ns) and high transition frequency (300MHz).
NPN; Configuration: SINGLE; Surface Mount: NO; Nominal Transition Frequency (fT): 300 MHz; Maximum Power Dissipation (Abs): .5 W; Maximum Collector Current (IC): .8 A;
Diodes Inc. 2N7002-7-F is a N-channel FET with 60V DS breakdown voltage, 0.115A max drain current, and 13.5 ohm RDS(on). Ideal for switching applications in enhancement mode operation. Features Gull Wing terminals, small outline package style, and operates up to 150°C.