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:
||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.
||It can only operates in the depletion mode.
||It operates in both depletion mode and enhancement mode.
||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.
||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.
||It is relatively cheaper than MOSFETs
||It is expensive one.
||These are ideal for low noise applications.
||These are mainly used for high noise applications.
||These are less susceptible to damage because of the high input capacitance.
||These are more susceptible to damage because of the metal oxide insulator.
||Manufacturing process of JFETs is simple.
||Manufacturing process of MOSFETs is complex.
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