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Difference between IGBT and MOSFET

Difference between IGBT and MOSFET

Are you looking for an in-depth comparison between an IGBT and MOSFET transistor? Understanding the differences between these two power switches requires an understanding of their varying functions, capabilities, and limitations. In this blog post, we’ll be taking a look at the various features IGBTs and MOSFETs offer so you can make an informed decision about which type is best suited for your application. We’ll explain each device’s characteristics when it comes to switching speed, voltage handling capacity, conduction losses, gate drive requirements as well as drawbacks associated with each technology. Read on to learn how they differ and why that might affect your choice.

What is IGBT?

IGBT, or insulated-gate bipolar transistor, is a type of power semiconductor device. IGBTs are versatile, since they can be used as both switches and amplifiers depending on the needs of the particular circuit. IGBTs offer several advantages when compared to other types of transistors because of their high efficiency and low switching losses. IGBTs are also able to control very large currents from a low voltage input making them ideal for use in motor drives, computer peripherals, and other electronic products. As versatile devices IGBTs make it possible to build reliable electronic circuits that offer more flexibility than ever before.

What is MOSFET?

MOSFET stands for Metal Oxide Semiconductor Field-Effect Transistor, and it is the most widely used type of power transistor. MOSFETs are convenient to use due to their high efficiency and low switching losses, as well as their ability to handle high voltages and large currents. MOSFETs can also be used to amplify signals in analog circuits more optimally than traditional bipolar transistors, making them useful for a variety of modern electronic applications in industries such as automotive, computers and wireless communications. MOSFETs have revolutionized the way many devices are built, offering numerous advantages compared to other types of transistors.

Difference between IGBT and MOSFET

IGBT and MOSFET are two semiconductor devices that are often compared to one another due to their similar electrical characteristics. IGBT stands for Insulated Gate Bipolar Transistor and is a type of device where the increased voltage and current capabilities of bipolar transistors can still be combined with the advantages of FETs, while MOSFET stands for Metal Oxide Semiconductor Field-Effect Transistor which is a type of transistor that relies on an electric field to control the flow of current.

  • IGBTs tend to have better performance, higher speed switching, lower power loss, and longer working life; however, IGBTs are also pricier than MOSFETS.
  • The primary differences between IGBTs and MOSFETs include power ratings, gate threshold voltage requirements, package sizes, gate drive requirements, operational frequency range and gate capacitance.
  • Ultimately each device offers its own benefits depending on specific needs and applications; it’s important to understand both IGBTs and MOSFETS before deciding which will work best for a given project.


IGBTs are better than MOSFETs because of their low on-resistance, high input impedance, and fast switching speed. They also have a lower Vgs(th) (Gate Threshold Voltage), which makes them easier to turn ON.

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