Hello everyone! I hope you will be absolutely fine and having fun. Today, I am going to give an Introduction to 2N3904. It is basically an NPN transistor made up of silicon material. It acts as a general purpose amplifier and switch. You should also have a look at Introduction to 2N2222, which is also an NPN transistor and considered as 2N3904 equivalent.
It is mostly used for lower power amplifiers and switching applications. Its major functional area is enclosed in TO-92 package. Its a silicon NPN general purpose bipolar junction (BJT) transistor designed for switching purpose as well as for an amplifier. Its can bear lower amount of current, lower power and medium voltage levels. It is most commonly used BJT due to its smaller size, wide availability and low cost. It is less sensitive to fluctuations in voltages and currents as compared to other BJT's.
Introduction to 2N3904
2N3904 is a silicon NPN Bipolar Junction Transistor (BJT), enclosed in TO-92 package and is normally used for switching & amplification purposes.
2N3904 Pinout consists of 3 Pins i.e. Base, Emitter & Collector.
As it's an NPN transistor, so major charge carriers are electrons caryying negative charge.
Small voltage at base(around 0.7V) changes its state from reverse to forward biased and starts conducting.
It has a wide range of applications i.e. used in televisions, home appliances, medium-load switches, PWM applications etc.
Now let's have a look at 2n3904 Pinout:
2N3904 Pinout has three pins in total:
Emitter denoted by E
Base denoted by B.
Collector denoted by C.
2N3904 Pin Diagram is shown in below figure:
2N3904 Pinouts alongwith their symbols are shown in the table given below.
Let's have a look at the Datasheet of 2N3904:
In order to get in-depth knowledge on any component, must read its datasheet. Here's the link to download 2n3904 Datasheet:
You should watch this below video to understand how to run this Proteus Simulation:
So that is all from the tutorial Introduction to 2N3904. I hope you really enjoyed this tutorial. If you face any sort of problem regarding any thing, you can ask me anytime in comments without even feeling any kind of hesitation. I will try my level to entertain you and to solve your issues in a better way, if possible. Our entire team is 24/7 here to entertain you and to solve your issues in a way or the other. I will explore different IC's in my later tutorials and will surely share all them with all of as you as well. So, till then, Take Care :)
I am Syed Zain Nasir, the founder of The Engineering Projects (TEP). I am a
programmer since 2009 before that I just search things, make small projects and now I am sharing my
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