Little Bird
2N2222A NPN Transistor
$0.46
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The 2N2222A is a widely used general-purpose NPN bipolar junction transistor (BJT) in a TO-92 package. With a maximum collector current of 800 mA and a colle...
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The 2N2222A is a widely used general-purpose NPN bipolar junction transistor (BJT) in a TO-92 package. With a maximum collector current of 800 mA and a collector-emitter voltage of 75 V, it's suitable for switching and amplification in a broad range of electronic circuits.
Key Features
- NPN Bipolar Transistor – General-purpose switching and amplification
- TO-92 Package – Standard through-hole footprint
- 800 mA Collector Current – Suitable for driving relays, LEDs, and small motors
- 75 V Collector-Emitter Voltage – Handles moderate voltage applications
- High Current Gain – hFE of 100–300
Specifications
- Type – NPN BJT
- Package – TO-92
- Collector-Emitter Voltage (Vce) – 75 V
- Collector Current (Ic) – 800 mA
- Current Gain (hFE) – 100–300
- Power Dissipation – 1.8 W at 25 °C
Ideal For
- Switching circuits (relays, LEDs, motors)
- Signal amplification
- Arduino and microcontroller interfacing
- General-purpose electronic projects
Jargon buster
Plain-language definitions for the technical terms used above.
- microcontroller
- A microcontroller is a small computer on a chip that runs your program and controls connected inputs and outputs. For this product, it is the part that reads buttons and sensors, drives the display and speaker, and communicates over Bluetooth.
- Power dissipation
- Power dissipation is electrical energy being turned into heat inside a component. It matters because too much heat can reduce efficiency, affect reliability, or require a larger component or better cooling.
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