What is Field Effect Transistor (FET)? || Differences between BJT and FET || Types of FET

In this video, the brief introduction to the Field Effect Transistor (FET) has been given and the different types of FETs are discussed.

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

0:20 What is Field Effect Transistor (FET)?

1:25 Differences between BJT and FET

3:18 Types of FET

What is Field Effect Transistor (FET)?

The FET is a terminal device that uses an electric field to control the current flowing through the device.
The three terminals of the FET are known as Gate, Drain, and Source.
It is a voltage controlled device, where the input voltage controls the output current.

Application of FETs:
1) Amplifier
2) Oscillator
3) Analog Switch
4) Integrated Circuits
5) Buffer Amplifiers

Differences between the BJT and FET :

1) The FET is a unipolar device, while BJT is a bipolar device
2) The input impedance of FET is very high compared to BJT
3) The power consumption in FET is less than BJT
4) In size, the FETs are smaller than BJT
5) Thermally, FETs are more stable than BJT

Types of FET:

There are many types of FETs. But mainly there are two types of FET:

1) JFET (Junction Field Effect Transistor)
1.1 n-channel JFET
1.2 p-channel JFET

2) IG-FET (Insulated Gate Field Effect Transistor)

MOSFET (Metal Oxide Semiconductor Field Effect Transistor) is the most common type of IG-FET, where a layer of SiO2 is used as an insulating layer to insulate the gate from the channel.

The MOSFET can be further classified into
2.1 Depletion-type MOSFET (n-channel and p-channel)
2.2 Enhancement-Type MOSFET (n-channel and p-channel)

This video will be helpful to all the students of science and engineering in understanding what is FET and the different types of FET.

#FET
#JFET
#MOSFET
#TypesofFET

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Music Credit:

[ALLABOUTELECTRONICS]

The timestamps for the different topics covered in the video:

0:20 What is Field Effect Transistor (FET)?

1:25 Differences between BJT and FET

3:18 Types of FET

[atriacharya]

thank you so so much sir. gratitude can't be expressed through just words...

[floflo]

Very good explanation. Everything is understandable (thanks to subtitles). I'm not sure 100% I understood all concepts but thanks to your video, i could sense I understand more things about FET (especially JFET, I would watch the part about MOSFET later)


Thank you for making videos with simple and clear explanations!

[stomp]

Another fantastic lecture. These videos are getting me through my university course. Thank you for sharing your knowledge and teaching skills.

[sumankumar_phy]

you are legend of electronics at least at the level of topic you teach.

[abhiramanne]

Interesting fact. Notice the metal part of the FET shown at the beginning of the video. It is used for heat dissipation. It is screwed to a PCB board using the hole and then a small amount of heat gel (heat sink compound) is applied between the metal part and the PCB board.

[sampal]

00:16 The field effect transistor (FET) is a three-terminal device that uses electric field to control current flow.
01:25 Field effect transistor (FET) is a voltage control device, while Bipolar Junction Transistor (BJT) is a current-controlled device.
02:22 BJTs are commonly used as amplifiers and switches, while FETs are preferred for their high input impedance, smaller size, and lower power consumption.
03:23 There are two types of FETs: JFET and IG-FET (or MOSFET).
04:25 The JFET or junction field effect transistor is a type of field effect transistor.
05:27 There are two types of JFET - n-channel and p-channel
06:29 There are two types of MOSFETs: depletion type and enhancement type.
07:31 FETs are further classified as n-channel or p-channel MOSFETs

[ashishtayade]

Thank you sir very nice gide & very nice best explain FET field effect transister teaching video.👍

[komalgupta]

Thanks sir 🌝🌝🌝 you did an amazing job 😀

[shailjatiwari]

best explanation.
And you are doing a great job.
Thankyou so much.

[kishor_kedar.]

Best lectures and helpful for engineering students👍👍👍❤️❤️🙏🙏

[rohitbhosle]

Are Bhai mechanical ka banda hu ..but electronics Mai bhi interest badhna chalu hua h ty for such videos really appreciate your knowledge and hardwork

[angaragangabhavyasri]

Super explanation sir
Thank you so much sir

[poojashah]

The beginning of the new topic is awesome sir❤

[WillsJazzLoft]

Wow! It's so easy to understand why the use of FETs has become so widespread. Voltage control consumes remarkably less power than current control !

[Paopao]

thank you so much for making this video, it is very easy to follow im so glad i found this

[frankreiserm.s.]

You make electronics very understandable.
Frank
Frank Reiser Video/Audio Service
Caldwell, NJ

[Ziyakbam]

🙏 thank you for this video! It helped me so much for my presentation.

[ManishKumar-jwsd]

Good morning sir, best helpful video Sir, very-very thanks sir.

[ruchii_shah]

It was too easily understandable. Thank you very much 💕