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. |
