Here the 2N2222 transistor is used which can endure upto 800mA current and 40V voltage. It has three terminals namely emitter, base, and collector. A-572, Block 7 Gulistan-e-Johar, Karachi, Sindh 75290. 2N2222 provides continuous dc collector current is 800mA. It is very much similar to BC547 but 2N2222 can drive larger loads as the maximum collector current is up to 800mA with low power dissipation. 2N2222 NPN Transistor Introduction. 2N2222 Low Power Bipolar Transistors Page 2 06/04/06 V1.0 Absolute Maximum Ratings (Ta = 25°C unless specified otherwise) Description Symbol 2N2222 Unit Collector Emitter Voltage VCEO 30 Collector Base Voltage CBO 60V Emitter Base Voltage VEBO 5 Collector Current Continuous IC 800 mA Power Dissipation at Ta = 25°C Derate above 25°C It was originally made in the TO-18 metal package. It is designed for low to medium current, low power, medium voltage, and can operate at moderately high speeds. It is made of silicon material and specially designed for low voltage, low to medium current and low power amplifier applications. All Rights Reserved © 2020 – Circuits-DIY, How to make Electronic Digital Clock using AT89C2051 – DIY Project, Infrared Proximity Sensor Using Transistors – IR LED, How to make a Simple Mobile Phone Call Detector Circuit, Music Reactive LED Strip with Microphone Module – Arduino Project, Arduino High Voltage Driver Circuit Using IRF9540 Power MOSFET, Police LED light Flasher Circuit Using 12V Relay – DIY, Automatic Emergency Light Circuit Using 5V Relay, Door Knock Sensing Doorbell using Piezoelectric Sensor, School/College Quiz Buzzer Circuit – Electronics Projects, 5V Power Supply (5A) using TIP2955 Power Transistor, PCB Design 101 – Top 5 Fatal Mistakes Made With PCB Designs, JLCPCB: The Right Way of Making Your PCBs & Assembling Your Board, Stereo Audio Amplifier Circuit Using TDA7297 Amplifier IC, Laser Tripwire Security Alarm Using NE555 Timer IC, Digital Infrared Forehead Thermometer Gun, Heartbeat Sensor Circuit Using LM358 – Electronics Projects, Smart Home Automation System using NodeMcu ESP8266, IR Detector Project | IR Sensor | Photodiode Circuit, It is also used as a switch to turn ON or OFF any appliances automatically, Because of its fast response time, it can be used for pulse width modulation, Can be used to switch high current (up to 800mA) loads. 2N2222 NPN transistor has been commonly used for switching and very high frequency(VHF) amplifier applications. 2N2222 is an NPN bipolar junction transistor commonly used for low power amplification and switching. 2N2222 is an NPN bipolar junction transistor commonly used for low power amplification and switching.It has three terminals namely emitter, base, and collector. You may widen the range but going above 40 LEDs per 2N2222 is not recommended. It is designed for low to medium current, low power, medium voltage, and can operate at moderately high speeds. A single 2A2222 transistor can withstand with 40 LEDs but for test here we put just 5 LEDs.

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