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2N2222A NPN Bipolar Junction Transistor (Pack of 3) – High-Speed General Purpose BJT for Switching and Amplification – TO-92 Plastic Package

Parameter	Detailed Specification
Transistor Type	NPN Bipolar Junction Transistor (BJT)
Package / Case	TO-92 (Plastic)
Max Collector Current ($I_C$)	800 mA (Continuous)
Max Collector-Emitter Voltage ($V_{CEO}$)	40 V
Max Collector-Base Voltage ($V_{CBO}$)	75 V
Max Power Dissipation ($P_D$)	625 mW (Typical) / up to 1W
DC Current Gain ($h_{FE}$)	100 to 300
Transition Frequency ($f_T$)	250 MHz to 300 MHz
Operating Temperature Range	-65°C to +150°C

Price

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₹ 8.47

(Tax included)

Barcode: 3279962

Product Description

Empower your circuit designs with the 2N2222A NPN Bipolar Transistor, one of the most widely used semiconductors in the electronics world. This pack of 3 transistors is an essential addition to any hobbyist, student, or professional engineer's toolkit. At Robogears, we recommend the 2N2222A for its remarkable versatility; it excels in both high-speed switching and small-to-medium signal amplification tasks. Housed in a compact TO-92 plastic package, it handles a continuous collector current of up to 800mA, making it significantly more robust than other general-purpose transistors like the BC547. Whether you're driving small motors, controlling relays, or building pre-amplifiers at your Pimpri facility, this transistor provides stable gain and reliable performance.

Detailed Key Features

High Current Handling: Capable of managing up to 800mA, allowing it to drive small loads like LEDs, buzzers, and solenoids directly.
Fast Switching Speed: Features a high transition frequency (up to 300MHz) and low delay times, making it ideal for pulse-width modulation (PWM) and digital control circuits.
Excellent Linear Amplification: Offers a consistent DC current gain ($h_{FE}$) of up to 300, providing clear and stable signal boost for audio and sensor applications.
Compact TO-92 Form Factor: The standard 3-pin plastic package is easy to mount on breadboards and through-hole PCBs for rapid prototyping.
Wide Voltage Tolerance: Withstands a collector-base voltage of up to 75V, ensuring safe operation in low-to-medium voltage power supplies.

All Technical Details

Pin Configuration: 1. Emitter, 2. Base, 3. Collector (Standard TO-92 layout).
Saturation Voltage: Low collector-emitter saturation voltage ($V_{CE(sat)}$) ensures high efficiency in switching modes.
Input/Output Capacitance: Low internal capacitance (approx. 8-25pF) supports high-frequency stability.
Applications: Ideal for embedded systems, IoT projects, relay drivers, oscillators, and Darlington pairs.

Prototyping & Engineering Tips (Robogears Exclusive)

Heat Management: While the 2N2222A can handle 800mA, it will get warm at high currents. At your Pimpri workshop, if you plan to run it near its maximum rating for extended periods, ensure there is adequate airflow or consider using the metal-can TO-18 version for better heat dissipation.
Base Resistor Selection: To use the transistor as a switch, always calculate a proper base resistor to ensure the transistor enters "saturation" (fully ON). A common rule of thumb for 800mA loads is to provide roughly 5mA to 10mA of base current.
Complementary Pair: If your circuit requires a PNP equivalent (for push-pull amplifiers or high-side switching), the 2N2907 is the perfect complementary partner to the 2N2222A.
Safe Operating Area: For the longest lifespan, try to keep the continuous load below 600mA and the voltage below 40V, as per our recommended safety margins.

Package Includes

3 x 2N2222A NPN Bipolar Transistors (TO-92 Plastic Package)

Image Disclaimer

Product images are shown for illustrative purposes only. The branding marks (e.g., CDIL, ON Semi, or Generic) may vary between batches, but the technical 2N2222A NPN specifications and TO-92 package remain as described.