Now that we have discussed all the above three, let us try to compare some of their properties.
|
TERMS |
BJT |
FET |
MOSFET |
|
Device type |
Current controlled |
Voltage controlled |
Voltage Controlled |
|
Current flow |
Bipolar |
Unipolar |
Unipolar |
|
Terminals |
Not interchangeable |
Interchangeable |
Interchangeable |
|
Operational modes |
No modes |
Depletion mode only |
Both Enhancement and Depletion modes |
|
Input impedance |
Low |
High |
Very high |
|
Output resistance |
Moderate |
Moderate |
Low |
|
Operational speed |
Low |
Moderate |
High |
|
Noise |
High |
Low |
Low |
|
Thermal stability |
Low |
Better |
High |
So far, we have discussed various electronic components and their types along with their construction and working. All of these components have various uses in the electronics field. To have a practical knowledge on how these components are used in practical circuits, please refer to the ELECTRONIC CIRCUITS tutorial.