2N2222 Transistor Pinout, Equivalent, Features, Uses & Applications

2N2222 transistor pinout, equivalent, features, uses, applications, description about the transistor and information about how and where to use it.


2N2222 Transistor Pinout, Equivalent, Features, Uses & Applications


Features / technical specifications:

  • Package Type: TO-92
  • Transistor Type: NPN
  • Max Collector Current(IC): 600mA
  • Max Collector-Emitter Voltage (VCE): 40V
  • Max Collector-Base Voltage (VCB): 75V
  • Max Emitter-Base Voltage (VEBO): 6V
  • Max Collector Dissipation (Pc): 625 miliWatt
  • Max Transition Frequency (fT): 300 MHz
  • Minimum & Maximum DC Current Gain (hFE): 35 – 300
  • Max Storage & Operating temperature Should Be: -55 to +150 Centigrade


PNP Complementary:

PNP Complementary of 2N2222 is 2N2907


Replacement and Equivalent:

2N2219, 2N1613, 2N2218, 2N2792, NTE123A, 2N3904 (Pin configuration of SOME transistors are different from 2N2222, check pin configuration before replacing in a circuit)


2N2222 Transistor Explained / Description:

2N2222 is also one of the widely used transistor in commercial appliances, educational and hobby projects. The transistor contains some of the best feature in its little package. For example the collector current of the transistor is 600mA that is quite good to use it as a switch to drive many loads at a time in an electronic circuit. The max collector dissipation of the transistor is 625mW which makes this transistor ideal to use it in audio amplifier stages and as an output amplifier to drive small audio speaker. The max collector emitter voltage of the transistor is 40V, therefore the user can use it in any circuit operating under 40V DC.


Where We Can Use it & How to Use:

Due to its good features 2N2222 can be used in wide variety of electronic projects, the large 600mA collector current makes this transistor ideal to use it in your electronic projects to control relays, high power LEDs, other high power transistors and ICs at the same time. 2N2222 can also be used to amplify audio signals for example it can be used in audio preamplifier stages and also in audio amplifier stages. It can also be used as a small audio amplifier or to drive a small speaker in electronic projects.



Audio Preamplifiers

Audio Amplifier Stages

Switching many loads at the same time (Thanks to its 600mA output in a small TO-92 package)

Darlington Pairs

RF Circuits

Sensor Circuits


How to Safely Long Run in a Circuit:

To get best performance with 2N2222 transistor the user should no drive load more than 600mA, the collector-emitter voltage of the transistor must in under 40V. Use a suitable base resistor which provides the required current at the base of the transistor. Do not store or operate the transistor below -55 centigrade and above +150 centigrade.

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