So it really doesn’t matter whether you want to use 2n2222 or BC547 NPN transistor. The same electronic projects can also be developed using the BC547 instead using the 2n2222 NPN transistor. Portable security system using Mini PIR Sensor.Non Contact AC line Voltage detector/tester.We will make the following four projects using the 2N2222 NPN transistors. The Gerber files of the PCB board used in this project can be downloaded from the PCBWay official website. PCBWay is quite professional in the field of PCB manufacturing you can try their services at extremely low prices, Only 5 dollars for 10 PCBs and 30 dollars in total for 20 PCBs assembly, besides this the new members also get a 5 Dollars bonus. The 12V and 5V power supply PCB board used in this video is sponsored by the PCBWay Company. For step by step explanation you can watch a video tutorial given at the end of this article. I will also explain the working principle of each electronic circuit, and we will test each circuit on breadboard. In this article, we will develop the same electronic projects using the most popular 2n2222 NPN transistors. Recently some electronic projects got viral which were completely based on the BC547 Transistor. So many amazing electronic projects can be built using this transistor. Electronic projects with 2n2222 Transistor or BC547 Transistor- BC547 NPN Transistor is of the most popular Bipolar Junction Transistors.

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