2N2222, NPN Switching Transistor, TO-92

The 2N2222 is a popular NPN bipolar junction transistor used for low-power switching and signal amplification. It offers reliable performance in analog circuits, such as amplifiers and digital interface systems. The plastic TO-92 package version is widely adopted in hobbyist and industrial applications due to its small size and ease of use.

Key Features:

• General Purpose NPN: Used in amplification and switching.
• Moderate Voltage Rating: Collector-emitter voltage up to 30–40V depending on version.
• High Switching Speed: Turn-on time as fast as 35 ns.
• Current Capacity: Supports up to 800 mA collector current.
• Low Saturation Voltage: V_CE(sat) typically under 0.4V at 150 mA.
• Low Saturation Voltage: V_CE(sat) typically under 0.4V at 150 mA.

Additional Specifications:

• Type: NPN
• Max Voltage: 30V
• Max Current: 800mA