Compare between BJT and FET

Compare between BJT and FET

1. The BJT is a current-controlled device since its output is determined on the input current, while FET is considered as a voltage-controlled device, because it depends on the field effect of the applied voltage.

2. The BJT (Bipolar Junction Transistor) uses both the minority and majority carriers (holes and electrons), while FETs, which are sometimes called unipolar transistors, uses either holes or electrons for conduction .

3. BJT three terminals are named the base, emitter, and collector, while FET  are named the source, drain, and gate .

 4 . The BJT is responsible for overheating due to a negative temperature co-efficient , While FET has a +Ve temperature coefficient for stopping over heating.

  5 . The input impedance of field effect transistors has high compared with bipolar junction transistors.