What is FET?
FET stands for Filed Effect Transistor . It is three terminal semiconductor device . It have Source , Drain , Gate and Body bit mostly body is sorted along with this it have a channel through which current flows from drain to source . It is unipolar because only majority charge carriers are responsible for flow of current .FET can be used as amplifiers , switches or voltage controlled resistor. Based on the type of channel FET can be classified as
- N Channel FET : In this channel is of N type
- P Channel FET : In this channel is of P type
FET are of two types :
- JFET : JFET stands for Junction Field Effect Transistor . It is three terminal device
- MOSFET : MOSFET stands for Metal Oxide Semiconductor Field Effect Transistor . It is four terminal device.
Difference Between BJT and FET
The transistor is a three-terminal semiconductor device, it is an active device that is used in most of the electronics devices. Transistors can be used as insulators and as conductors as needed. we can use a transistor as a switch and as an amplifier. It can be used with other circuit elements and can be able to amplify current and voltage. We can classify transistors into two types that is Bipolar, and Field Effect Transistor.
BJT is a three-terminal device, it has two PN junctions. It is mostly used analog electronic device because of its high current gain. FET is a very important component in today’s electronic devices. FET is a type of device in which electric fields are used to control the flow of charges or current flowing through a channel. Due to its high input impedance, low output impedance, and high gain capacity, they are widely used in electronic devices.
BJT and FET both are used in many different devices and they have many different characteristics that make them different from each other. In this article, we will go through all the things that make them different and we will get the overview of BJT and FET.
Table of Content
- What is BJT
- What is FET
- BJT vs FET operation comparison
- Difference Between BJT and FET
- Applications of BJT
- Applications of FET
- Conclusion
- FAQs