Transistor BC547: It is a NPN bipolar junction transistor and it is used mainly for amplification and switching purpose. Its features include maximum current gain of 800.It is used in CE configuration when used as an amplifier. Battery: A DC supply of 9V is given through a battery to power...
Generally, human body emits infrared energy which is sensed by the PIR sensor from a considerable distance. The output from the PIR sensor i.e., passive infrared detector is amplified to a transistor BC547, the output of which at the collector is connected to pin 1 of the microcontroller. ...
So you can see that a transistor labelled “BCxxx” will be a Silicon Audio Frequency Low Power Transistor. There are other systems as well. American semiconductors use theJEDECsystem, where 1 is a diode, 2 is a transistor and 3 are four-lead devices…usually obscure double-gate mosfets an...
What Is a BC547 Transistor? What Is an Epitaxial Transistor? What Is a 2N Transistor? What are the Basics of Transistor Substitution? Discussion Comments Bybagley79— On Aug 01, 2011 I still keep a transistor radio around the house and make sure I always have batteries for it. There have...