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).
P-CHANNEL; Configuration: SINGLE WITH BUILT-IN DIODE; Surface Mount: YES; Maximum Power Dissipation (Abs): 3 W; JESD-609 Code: e0; Field Effect Transistor Technology: METAL-OXIDE SEMICONDUCTOR;
NDT2955 by Onsemi is a P-CHANNEL FET with 60V DS Breakdown Voltage, ideal for SWITCHING applications. It features a max IDM of 15A and EAS of 174mJ, suitable for ENHANCEMENT MODE operation. With a compact SMALL OUTLINE package and -55 to 150 °C operating range, it offers efficient power dissipation up to 3W.