Transistor 2N2222

Transistor 2N2222 NPN, 0.8A TO-92

Transistors

Reference: TR2N2222A

Part.No: 2N2222

€1.00

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The 2N2222 is a classic general-purpose NPN Bipolar Junction Transistor (BJT) in a TO-92 package, from CDIL. Widely used for switching and small-signal amplification in Arduino, Raspberry Pi and general-purpose DIY electronics.

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Description
Product Details

2N2222 NPN Transistor - The Classic General-Purpose Switch & Amplifier

The 2N2222 is one of the most widely referenced NPN transistors in electronics history, valued for its higher current handling compared to smaller signal parts like the BC547 or 2N3904. It remains a go-to choice for hobbyists and engineers who need a robust, inexpensive switch for relays, motors, LEDs, or a dependable stage for general audio-frequency amplification.

Functions & Applications

Higher Current Rating: Handles up to 0.8A, giving more headroom than typical small-signal TO-92 transistors.
Standard TO-92 Package: Compact through-hole design, easy to solder and breadboard-friendly.
Proven, Well-Documented Design: One of the most characterized transistors ever made, with abundant reference circuits and application notes.
Versatile Switching & Amplification: Suitable for driving relays, small motors, LEDs and general-purpose audio-frequency amplifier stages.
MCU Compatible: Works well with 3.3V/5V logic outputs from Arduino, ESP32 and Raspberry Pi via a base resistor.

Technical Specifications

Parameter	Value / Specification
Transistor Type	BJT (Bipolar Junction Transistor)
Polarity / Channel	NPN
Package / Case	TO-92
Collector-Emitter Voltage (Vceo)	30V
Collector-Base Voltage (Vcbo)	60V
Max Collector Current (Ic)	800mA
Power Dissipation (Pd)	500mW
DC Current Gain (hFE)	~100-300
Mounting Type	Through-Hole (THT)

Frequently Asked Questions

Q: What is the complementary PNP part for the 2N2222?
A: The complementary PNP transistor is the 2N2907, matched for similar voltage and current ratings.

Q: Can the 2N2222 drive a small 12V relay or DC motor directly?
A: Yes, as long as the load current stays under roughly 800mA (Ic) and you add a flyback diode across any inductive load like a relay coil or motor.

Note: Price refers to one (1) piece. The component is shipped in bulk without individual packaging.

Transistor Type: BJT (Bipolar Junction Transistor)
Transistor Polarity / Channel: NPN
Transistor Case Style: TO-92

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