BC547 Switch Circuit

Introduction: BC547 Switch Circuit

About: start exploring electronics with electronicjail

With this instructable surely you will get an idea about using a BC547 transistor as a switch.

Step 1: Getting to Know BC547 Transistor

The transistor we are going to use has three terminals collector,emitter and base.Out of these the base is for controlling the input across collector and emitter.The transistor has three operating regions which are

1)Saturation region

2)Cut-off region

3)Active region

In these regions the transistor will work as a switch in saturation and cut-off regions and as an amplifier in active region.

Step 2: Recommended Current and Voltage Ratings

The above mentioned current and voltage ratings are very important for the proper working of the transistor.The main thing to keep in mind is the base current, it should not exceed 5mA. And you can connect upto a maximum of 100mA load to the collector emitter area.

Step 3: BC547 Transistor As a Switch

Be the First to Share


    • Puzzles Speed Challenge

      Puzzles Speed Challenge
    • "Can't Touch This" Family Contest

      "Can't Touch This" Family Contest
    • CNC Contest 2020

      CNC Contest 2020