Core idea
A MOSFET is an electronic switch that controls a larger load with a small gate signal.
Explains the Gate, Drain and Source terminals of a MOSFET and its switching principle.
A MOSFET is an electronic switch that controls a larger load with a small gate signal.
Gate is the control input. Drain and Source form the main path for load current.
Not every MOSFET can be driven directly by a microcontroller. Check logic-level suitability and RDS(on).
Use this lesson together with Claddify component pages and finder tools. Verify the datasheet and connection orientation before building a real circuit.
This page MOSFET Fundamentals is step 1 of 6 in the path.