The 2N2222 is a high-speed NPN bipolar junction transistor designed for general-purpose switching and amplification applications. It offers a maximum collector current of 800 mA and a voltage rating of 40 V, ensuring reliable performance in low to medium power circuits. Ideal for signal processing, driver circuits, and small motor control, it is compatible with standard through-hole PCB layouts and operates efficiently over a wide temperature range of –55 °C to +150 °C.