2N2222A

NPN bipolar switching transistor.

Tutorial / documentation

Transistors & diodes

First tests with 2N2222A

  1. Identify the exact 2N2222A variant, package and manufacturer documentation.
  2. Identify power, ground and signal pins in the documentation. Assemble the circuit with power disconnected.
  3. Follow the manufacturer’s evaluation circuit. Use a current-limited low-voltage supply and the recommended logic levels.
  4. Mesurez les signaux d’entrée et de sortie. Comparez leur comportement à la fonction : transistor bipolaire npn de commutation.

2N2222A

NPN bipolar switching transistor.

  • Identify the exact 2N2222A variant, package and manufacturer documentation.
  • Identify power, ground and signal pins in the documentation. Assemble the circuit with power disconnected.
  • Follow the manufacturer’s evaluation circuit. Use a current-limited low-voltage supply and the recommended logic levels.
  • Mesurez les signaux d’entrée et de sortie. Comparez leur comportement à la fonction : transistor bipolaire npn de commutation.
Technical documentation