JFET: Construction and Working Explained

In this video, the construction and working of n-channel JFET and p-channel JFET are explained.

By watching this video, you will learn the following topics:

1:01 Construction of n-channel JFET

2:25 Working of n-channel JFET

6:01 Output characteristics (Drain curves) of n-channel JFET

11:07 Different regions of operation of JFET

13:07 p-channel JFET

14:44 Symbols of n-channel and p-channel JFET

JFET (Junction Field Effect Transistor) :

The junction field Effect Transistor (JFET) is used in a wide range of applications. It is a three terminal device. (The 3 terminals are Gate, Drain, and Source)

JFET can be classified as either n-channel JFET or p-channel JFET.

n-channel JFET:
In the n-channel JFET, the channel is made up of n-type semiconductor material and two small p-type regions are formed near the channel.

p-channel JFET:
In the p-channel JFET, the channel is made up of p-type semiconductor material and two small n-type regions are formed near the channel.

In this video, the construction and working of JFET are explained by taking the example of n-channel JFET. And at the latter part of the video, the output characteristics (Drain curves) and the different region of operation of JFET is also discussed.

Different regions of operation of JFET:
1) Ohmic region
2) Saturation Region
3) Cut-off Region
4) Breakdown Region

This video will be helpful to all students of science and engineering in understanding the construction and working of JFET.

#JFET
#JFETWorking
#NchannelJFET
#PchannelJFET

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Music Credit:

[ALLABOUTELECTRONICS]

The timestamps for the different topics covered in the video:

1:01 Construction of n-channel JFET

2:25 Working of n-channel JFET

6:01 Output characteristics (Drain curves) of n-channel JFET

11:07 Different regions of operation of JFET

13:07 p-channel JFET

14:44 Symbols of n-channel and p-channel JFET

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[jariabbas]

Sir No words for you .... You are great... Thanks a lot... It helped me to understand my project related to JFET.

[anubhavprakash]

amazing lecture. even better than my prof at IITM

[rajkamaldey]

nice video!!!
at pinch off voltage, 2 depletion region nearly touch each other, but don't touch it due to electro-static repulsion...

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[NatureLover-oquc]

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[elenitza]

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[poojashah]

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[wire]

I used it in my circuits on my channel. Thank you for sharing!

[andreapresutti]

this is one of, if not the clearest explaination of a jfet i've come across

[Iseeyouthroughandthrough]

8:13, I am not able to understand the reason behind Id≠0, but can it be due to the repulsion between the depletion regions?

[Iseeyouthroughandthrough]

At 6:46, does the electrical resistance starts increasing at a certain time, not uniformly as Id increases as Vds increases linearly?

[Karthikreddy]

Excellent lecture sir..
Keep uploading more videos regarding Electronics..