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Basics of BC547

Hello friends, I hope you are all doing great and having fun in your lives. In today's tutorial, I am gonna discuss a new electronic component named as BC547. It's a BJT transistor and is normally used where fast switching is required. If you are using this transistor in your Engineering Project then I would suggest you download this Proteus Simulation of BC547 because it's always a better strategy to work on simulation first before going on to hardware. So, let's have a look at the basics of BC547. Here's the pinout Diagram of BC547:

Basics of BC547

Here are the key points which you must know about BC547:

  • BC547 is a Bipolar Junction Transistor, abbreviated as BJT.
  • It is an NPN transistor.
  • It has three terminals named as:
    1. Emitter
    2. Collector
    3. Base
  • The maximum current gain of BC547 is 800A.
  • Collector-Emitter Voltage is 65V.
  • Collector-Base Voltage is 80V.
  • Emitter-Base Voltage is 8V.

Working of BC547

BC547 has two working states which are:

  • Forward Biased.
  • Reverse Biased.

In a forward biased state, the collector and emitter are connected allowing current to pass through. While in a reverse biased state, it works as an open switch and doesn't allow the current to pass.

Applications of BC547

BC547 is normally used for:

  • Current Amplification.
  • Fast switching.
  • Pulse Width Modulation.

So if you have some project in which you wanna control the speed of a motor or actuator then you can easily do that by using this transistor. Moreover, it is also used as a switch i.e. if you want to turn on or off DC appliances then you can easily do that using this transistor.

I hope you have enjoyed today's tutorial. If you are working on this transistor and got into some trouble then ask in comments and I will try my best to resolve it. Will meet you guys in the next tutorial. Till then take care and have fun !!! :)



Technopreneur :P

17 Aug 2018, 13:52


August 20, 2018 09:44

Good read. You nail down everything in simple steps that are easy to digest and convey the main idea quite impressively.

0 Votes