3/27/2021 0 Comments 2N222A Datasheet Pdf
They are designed for high speed switching application at collector current up to 500mA, and feature useful current gain over a wide range of collector current, low leakage currents and low saturation voltage.Operating Junction Temperat ure 175 o C TO-18 TO-39 2N2219A approved to CECC 50002-100, 2N2222A approved to CECC 50002-101 available on request.Italian: Alldatasheetit.com Portuguese: Alldatasheetpt.com.
The maximum amount of current that could flow through the Collector pin is 800mA, hence we cannot connect loads that consume more than 800mA using this transistor. To bias a transistor we have to supply current to base pin, this current (I B ) should be limited to 5mA. When base current is removed the transistor becomes fully off, this stage is called as the Cut-off Region and the Base Emitter voltage could be around 660 mV. But there are two important features that distinguish both. N2222A can allow collector current upto 800mA and also has power dissipation of 652mW which can be used to drive larger loads than compared with BC547. The Base-Emitter voltage of this transistor is 6V so you just have to supply this voltage across the base and emitter of the transistor to induce a base current into the transistor. This transistor will make it forward biased and thus closes the connection between collector and emitter. However one important thing to notice is the Base resistor a.k.a current limiting resistor. ![]() The value for this resistor can be calculated using the formula. I have used a base voltage of 5V and a value of 1K as current limiting resistor.
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