Difference between JFET and MOSFET
JFET (Junction Gate Field-Effect Transistor):
JFET is a field-effect transistor and it is the three terminal devices. There are number of application of that, it can be used as switch, amplifier, etc. It is classified into two categories: N-Channel JFET and P-Channel JFET.
MOSFET (Metal–Oxide–Semiconductor Field-Effect Transistor):
The MOSFET is a field-effect transistor and it is a four terminal device with source(S), gate (G), drain (D) and body (B) terminals. It’s generally classified into two basic configurations: Depletion Mode MOSFET and Enhancement Mode MOSFET.
Let’s see the difference between Primary Key and Foreign Key:
S.NO. | PRIMARY KEY | FOREIGN KEY |
---|---|---|
1 | JFET(Junction Gate Field-Effect Transistor) is a three-terminal semiconductor device. | MOSFET(Metal–Oxide–Semiconductor Field-Effect Transistor) is a four-terminal semiconductor device. |
2 | It can only operates in the depletion mode. | It operates in both depletion mode and enhancement mode. |
3 | It has high input impedance on the order of 1010 ohms, therefore they are more sensitive towards input voltage signals. | It offers even higher input impedance than the JFETs, theredore they are more resistive. |
4 | It allows the gate leakage current on the order of 10^-9 A | While the gate leakage current for MOSFETs will be of the order of 10^-12 A. |
5 | It is relatively cheaper than MOSFETs | It is expensive one. |
6 | These are ideal for low noise applications. | These are mainly used for high noise applications. |
7 | These are less susceptible to damage because of the high input capacitance. | These are more susceptible to damage because of the metal oxide insulator. |
8 | Manufacturing process of JFETs is simple. | Manufacturing process of MOSFETs is complex. |
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