Characteristics of Field Effect Transistor

It has the advantages of high input resistance (100000000-1000000000 Ω), low noise, low power consumption, large dynamic range, easy integration, no secondary breakdown phenomenon, wide safe working area, and good thermal stability. It has become a strong competitor to bipolar transistors and power transistors.

Function: Field effect transistors can be used for amplification. Due to the high input impedance of field effect transistor amplifiers, the coupling capacitance can have a smaller capacity and does not require the use of electrolytic capacitors.

Field effect transistors can be used as electronic switches.

The high input impedance of field-effect transistors is very suitable for impedance transformation and is commonly used in the input stage of multi-stage amplifiers for impedance transformation. Field effect transistors can be used as variable resistors. Field effect transistors can be conveniently used as constants.