Top 3 Electronics Projects using 2n2222 transistor
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
Replacement
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
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.
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.
Applications
☻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
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