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A gate line beside a continuous channel line.
Also known as: Depletion mode MOSFET, D-MOSFET, Normally on MOSFET, Solid line transistor
A depletion-mode MOSFET conducts with no gate voltage applied and is turned off by one, which is the opposite of the enhancement type. Its symbol says so with an unbroken channel line, and a circuit that assumes the wrong one is conducting at power-up.
Denotes a depletion-mode MOSFET: conducting at zero gate-source voltage and turned off by an applied gate voltage.
Contexts: Electrical equipment
Is drawn with a continuous channel line, against the three separate segments of the enhancement-mode symbol.
Contexts: Electrical equipment
Is far less common than the enhancement type in modern designs, surviving mainly in specialist analogue and constant-current applications.
Contexts: Electrical equipment
A vertical gate line separated by a gap from one continuous vertical channel line, with drain and source leads and an arrow on the substrate lead.