2N2222A Bipolar Junction NPN Transistor

2N2222A Bipolar Junction NPN Transistor is commonly used in general-purpose low-power amplifying/switching applications. Bipolar Junction NPN Transistor is designed for low to medium current, low power, medium voltage, and can operate at moderately high speeds. It was originally made in the TO-18 metal can as shown in the picture. We have many other NPN transistor like BD139, BC547, BC548, 2SC945 etc. The 2N2222 is considered a very common transistor and is used as an exemplar of an NPN transistor. It is frequently used as a small-signal transistor, and it remains a small general-purpose transistor of enduring popularity.

Features of 2N2222A Bipolar Junction NPN Transistor:

1. Use in a 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.
2. 2N2222A 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.

Specifications of 2N2222A Bipolar Junction NPN Transistor:

1.  Transistor Polarity: NPN
2.  Collector-Emitter Voltage V(BR)CEO: 30V
3.  Power Dissipation Pd: 500mW
4.  DC Collector Current: 800mA
5.  DC Current Gain hFE: 100
6.  Transistor Case Style: TO-18
7.  No. of Pins: 3
8.  Collector-Emitter Voltage Vces: 400mV
9.  Continuous Collector Current Ic Max: 800mA
10.  Current Ic @ Vce Sat: 150mA
11.  Current Ic Continuous a Max: 800mA
12.  Current Ic hFE: 150mA
13.  Full Power Rating Temperature: 25°C
14.  Gain Bandwidth ft Min: 250MHz
15.  Gain Bandwidth ft Typ: 250MHz
16.  Hfe Min: 100
17.  No. of Transistors: 1
18.  Pin Configuration: a
19.  Power Dissipation Pd: 500mW
20.  Power Dissipation Ptot Max: 500mW
21.  Termination Type: Through Hole
22.  Voltage Vcbo: 60V

Applications:

1. Audio Preamplifiers
2. Audio Amplifier Stages
3. Switching many loads at the same time (Thanks to its 600mA output in a small TO-92 package)
4. Darlington Pairs
5. RF Circuits
6. Sensor Circuits

Package includes:

• 1 x 2N2222A Bipolar Junction NPN Transistor

Note: Complete Technical Details can be found in the 2N2222A datasheet, given at the end of this page.

Alternative:

BC549, BC636, BC639, BC547, 2N2369, 2N3055, 2N3904, 2N3906, 2SC5200

2N2222A Equivalent Transistors:

2N2907(PNP), 2N3904(PNP), 2N3906 (PNP), BC637, S9014, BC148, 2N4403, MPS2222, PN2222, KN2222, KTN2222

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