LM317T by Texas Instruments is an adjustable positive single output standard regulator with a max output voltage of 37V and max input-output voltage differential of 40V. Operating temperature ranges from 0 to 125°C, making it suitable for various applications requiring precise voltage regulation in electronic circuits. With a max output current of 1.5A, this through-hole package regulator is ideal for power supply designs where adjustable voltage levels are needed.
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).