is the minimum gate-to-source voltage () that allows current to flow. If then the device is in cut-off. Otherwise, if , the device is in the saturation region. If both and , then the device is in the linear region.

is the minimum gate-to-source voltage () that allows current to flow. If then the device is in cut-off. Otherwise, if , the device is in the saturation region. If both and , then the device is in the linear region.

is the minimum gate-to-source voltage () that allows current to flow. If then the device is in cut-off. Otherwise, if , the device is in the linear region. If both and , then the device is in the saturation region.

is the minimum gate-to-source voltage () that allows current to flow. If then the device is in cut-off. Otherwise, if , the device is in the linear region. If both and , then the device is in the saturation region.

is the drain-to-source voltage () at which the transistor enters saturation, causing the drain current () to become independent of .

is the minimum gate-to-source voltage () required to form an inversion channel. If then the transistor is in the cut-off region. If then the transistor is in the saturation region.