2N2222A NPN Transistor: Datasheet, Pinout and Equivalents

2N2222A is a NPN transistor hence the collector and emitter will be left open (Reverse biased) when the base pin is held at ground and will be closed (Forward biased) when a signal is provided to base pin. 2N2222A has a gain value of 110 to 800, this value determines the amplification capacity of the transistor.

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Central Semiconductor 2N2222A technical specifications, attributes, parameters and parts with similar specifications to Central Semiconductor 2N2222A.

• High current (max.800mA)

• Low voltage (max.40V)

• Lead Free Finish/RoHS Complaint

• Can be used to switch large current (up to 800mA) loads

• Can be used in a variety of switching applications

• Can be used in Darlington pairs

• Motors speed control

• Inverters and other rectifier circuits

• Can be used in Darlington pairs

2N2222A can allow collector current upto 800mA and also has power dissipation of 652mW which can be used to drive large loads. And if you are looking for an NPN transistor that could switch loads of higher current, 2N2222A might the right choice for your project.

2N2222A NPN transistor can be used either as a switch or as an amplifier. 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. This resistor will limit the current flowing through the transistor to prevent it from damaging. The value for this resistor can be calculated using the formula.

To make things simple I have shown a simplified circuit to make a transistor as switch. In actual circuit modifications might be required. I have used a base voltage of 5V and a value of 1K as current limiting resistor.

Since 1974, Central Semiconductor has manufactured innovative discrete semiconductors used in electronic products worldwide. Devices currently include standard and custom small signal transistors, bipolar power transistors, MOSFETs, diodes, rectifiers, protection devices, current limiting diodes, bridge rectifiers, thyristors, and silicon carbide devices. Central’s devices are available in industry standard surface mount and through-hole packages, bare die, TLMs (Tiny Leadless Modules™), and MDMs (Multi Discrete Modules™). Central has earned a reputation as a manufacturer of the highest quality products consistently delivered on-time, and a provider of exceptional value-added services.

Download datasheets and manufacturer documentation for Central Semiconductor 2N2222A.