Sparkfun Transistor - NPN, 100V 5A (TIP122G)

The TIP122G is a powerful NPN Darlington transistor designed to bridge the gap between microcontrollers and high-current loads. It serves as an efficient high-current switch, allowing your Arduino or Raspberry Pi to control devices that require significant power, such as motors, solenoids, high-power LED strips, or relays.

Consider using this transistor when you need to control a motor or a high-power LED strip with your microcontroller. The TIP122G handles the heavy lifting, enabling your microcontroller to manage these demanding components with ease. By using a small logic-level signal from your microcontroller, you can operate much larger loads, making it perfect for projects that require significant power management.

The Darlington configuration of the TIP122G provides a high DC Current Gain, with a minimum gain of 1000. This feature allows a small input current to control a much larger output current, making it an excellent choice for general-purpose amplification and low-speed switching. Its design is tailored for digital on/off applications, ensuring reliable performance in your large-scale projects.