Difference between JFET and MOSFET

In this article we will know about the difference between JFET and MOSFET. In this article  we will learn about the main difference between MOSFET and JFET.

Difference between JFET and MOSFET


JFET (Junction Field Effect Transister)

 MOSFET ( Metal Oxide Field Effect Transistor)


difference between JFET and MOSFET, what is difference between MOSFET and JFET

difference between JFET and MOSFET, what is difference between MOSFET and JFET
It is symbol diagram of MOSFET ( Metal oxide semiconductor field effect transistor.
which three terminal
1. Gate
2. Drain
3. Source
1. In JFET gate biasing is reverse biasing.
 In MOSFET is forward biasing or reverse biasing
The mode of operation of JFET is depletion mode
In case of MOSFET mode operation is both depletion mode and enhancement mode.
2. The input impedance of JFET is very high as compare to MOSFET.
The input impedance of MOSFET is low as compare to JFET.
3. The Drain resistance of JFET is higher than MOSFET. It is higher than MOSFET.
The Drain resistance of lower that JFET. It is main difference between F=JFET and MOSFET.
4. The manufacturing compatibility of JFET is less easy than MOSFET
It is easy to manufacture
5. The gate current leakage is Nano ampere
In the order of bico ampere
6. Compatibility to ic fabrication is suitable
Compatibility to IC fabrication is more suitable than JFET.
7. In JFET power classification is more.
In MOSFET power classification is less.
8. Its gate margin is 0.1 to 10 mA/V.
Its gate margin is 0.1 to 20 m/a/V.
9. JFET has not p-n junction which have high resistivity.
It is a voltage controlled field effect has a metal oxide gate electrode. Which is electrically insulated from a channel n-type or p-type by very thin layer of insulating material?
10. The JFET is normally ON device. it is most important difference between JFET and MOSFET
The MOSFET is normally off devices.

Hence it is difference between JFET and MOSFET. If you will find any incorrect above article please
comment below in comment box.

If you want to know more about the difference between JFET and MOSFET. You must watch this video.

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