From the course: Electronics Foundations: Semiconductor Devices
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BJT vs. MOSFET
From the course: Electronics Foundations: Semiconductor Devices
BJT vs. MOSFET
- [Instructor] Although BJTs and MOSFETs can be used for similar purposes, they are different types of transistors that work in different ways and each have their own set of pros and cons. Deciding whether to use a BJT or a MOSFET for certain projects can be a bit of a struggle. And unfortunately, there isn't a straightforward answer for which one is best to use. It depends on what you're doing. So, to help with planning your next electronics project, I'll discuss some of the pros and cons of each one. BJTs tend to have better, more linear gain characteristics and can give you a lot higher voltage gain than MOSFETs. They're also able to handle higher output currents and have a lower output impedance. That gives BJTs a huge advantage over MOSFETs for building amplifier circuits that need to provide a significant amount of output power and/or drive loads that have low input impedance. MOSFETs are going to have a harder time…
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