The 2N2222 is a commonly used bipolar junction transistor (BJT) that can be used as a switch or an amplifier. It is an NPN (negative-positive-negative) type of transistor, The 2N2222 can be used as an amplifier and a switch. The 2N2222 is a versatile and low-cost transistor that is widely used in a variety of applications, including digital circuits, power control circuits, and analog circuits.

Package Includes:

• 1 x Transistor NPN 2N2222

Features:

• Type: The 2N2222 is an NPN (negative-positive-negative) type of transistor, meaning it has a layer of p-type semiconductor material sandwiched between two layers of n-type semiconductor material.
• Voltage and Current Ratings: The 2N2222 has a maximum collector-emitter voltage rating of 40V and a maximum collector current rating of 800mA. These ratings determine the maximum safe operating conditions for the transistor.
• Gain: The gain of a transistor, also known as the hFE, is a measure of the transistor's ability to amplify a signal. The gain of the 2N2222 is typically in the range of 100 to 300, which makes it a good choice for a wide range of amplification applications.
• Frequency Response: The 2N2222 has a relatively low maximum frequency of operation, typically in the range of 100 MHz to 300 MHz, making it suitable for low-frequency amplification and switching applications.
• Switching Speed: The 2N2222 has a relatively fast switching speed, which makes it suitable for high-frequency switching applications.

Description:

The 2N2222 is a commonly used bipolar junction transistor (BJT) that can be used as a switch or an amplifier. It is an NPN (negative-positive-negative) type of transistor, which means that it consists of three layers of semiconductor material with different doping types. The 2N2222 is used to control the flow of current in a circuit by acting as a switch. When a small current is applied to the base of the transistor, it controls the flow of a larger current between the collector and emitter, allowing the transistor to act as a switch. The 2N2222 can also be used as an amplifier by applying a small input signal to the base of the transistor and amplifying it to produce a larger output signal at the collector. The 2N2222 is a versatile and low-cost transistor that is widely used in a variety of applications, including digital circuits, power control circuits, and analog circuits.

Principle of Work:

The Bluetooth HC-06 Wireless Transceiver Serial Module is based on Bluetooth technology, which is a wireless communication standard that allows devices to communicate with each other over short distances. The module contains a Bluetooth radio transceiver and a microcontroller that implements the Bluetooth protocol stack. The microcontroller handles the communication between the module and the host device (such as an Arduino) using a simple serial interface. The host device sends AT commands to the module to configure and control its operation, and the module sends and receives data over the Bluetooth connection. When the module is powered on, it goes into discovery mode and waits for a Bluetooth connection from a host device. Once a connection is established, the module operates as a slave device and communicates with the host device over the Bluetooth link. The Bluetooth HC-06 module only supports slave mode and implements the classic Bluetooth SPP (Serial Port Profile), which provides a simple serial communication channel between two devices. The module can be easily configured and controlled with AT commands and supports baud rate adjustment from 9600 to 115200 bps.

Pinout of the Module:

• Collector (C): This pin is used to collect the flow of current. It is typically the largest or middle pin of the transistor and is connected to the load in the circuit.
• Base (B): This pin is used to control the flow of current between the collector and emitter. It is typically the smallest or closest to the collector pin of the transistor and is connected to a current-limiting resistor in the circuit.
• Emitter (E): This pin is used to emit the flow of current. It is typically the farthest from the collector pin of the transistor and is connected to the ground in the circuit.

Applications: 

• Amplification: The 2N2222 can be used as a common-emitter amplifier to amplify small signals and produce a larger output signal.
• Switching: The 2N2222 can be used as a switch to control the flow of current in a circuit by turning the device on or off.
• Digital Circuits: The 2N2222 can be used as a digital switch in digital circuits to control the flow of current.

Circuit:

 

 

Library:

 No need to use a library to work with this Transistor.

Code:  

no code needed

 

Technical Details:

• Type: The 2N2222 is a NPN bipolar junction transistor (BJT).
• Collector-Emitter Voltage (VCE): The maximum collector-emitter voltage rating is 40 V.
• Collector Current (IC): The maximum collector current is 800 mA.
• Gain (hFE): The minimum gain of the 2N2222 is 30, and the typical gain is around 100.
• Switching Speed: The 2N2222 has a fast switching speed, with a typical transition time of 30 ns.
• Package: The 2N2222 is available in a TO-92 plastic package.
• Applications: The 2N2222 is commonly used for amplification, switching, and digital circuits.

Resources:

• Tutorial

Comparisons: