Therefore, when the 2N2222A transistor is fully biased, then it allows a maximum of 800 mA current to flow across the collector emitter. It also offers a constant DC collector current like 800 mA. It is accessible in the package of To-92. It is a current controlled transistor, specially outlined to have fairly high speed even in low power, low to medium current, and medium voltage.
Since it’s an NPN transistor so the collector and emitter are reverse biased and the base is forward biased. It is a common NPN Bipolar Junction Transistor i.e., one P-doped layer stands between the two N-doped layers. Like every other amplifier, even a 2N2222A transistor is also used for amplification and switching. Working Principle of 2N2222A Transistor.
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