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A pack of 5 PN2222A NPN transistors in through-hole TO-92 packages. A versatile general-purpose transistor commonly used for switching and signal amplificati...
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A pack of 5 PN2222A NPN transistors in through-hole TO-92 packages. A versatile general-purpose transistor commonly used for switching and signal amplification in microcontroller projects — apply a small voltage to the base to control a larger current flowing from collector to emitter.
Key Features
- NPN Type – Current flows from collector to emitter when base is driven high
- General Purpose – Suitable for switching, amplification, and logic level control
- Through-Hole TO-92 – Breadboard and perfboard friendly
- 600 mA Max Collector Current – Drive relays, LEDs, motors, and other loads
Specifications
- Part Number – PN2222ARLRPG
- Type – NPN
- Package – TO-92-3 (TO-226)
- Max DC Collector Current – 600 mA
- Collector-Base Voltage (VCBO) – 75V
- Collector-Emitter Voltage (VCEO) – 40V
- Emitter-Base Voltage (VEBO) – 6V
- Gain Bandwidth Product (fT) – 300 MHz
- Collector-Emitter Saturation Voltage – 1V
- DC Current Gain (hFE min) – 35
- Max Power Dissipation – 625 mW
Package Contents
- 5× PN2222A NPN transistors (TO-92)
Ideal For
- Switching loads from microcontroller GPIO pins
- LED and relay driver circuits
- Signal amplification
- Electronics learning and prototyping
Resources
Jargon buster
Plain-language definitions for the technical terms used above.
- GPIO
- General-purpose input/output pins are microcontroller pins you can set in software to read signals, switch devices on and off, or connect to peripherals. The number of GPIO pins matters because it limits how many buttons, LEDs, sensors, and other parts you can wire directly to the board.
- LED
- A light-emitting diode is a small electronic component that lights up when current flows through it in the correct direction. In this kit, LEDs create the flashing effect, so polarity and correct soldering matter for the project to work.
- 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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