GTO
Gate-turn-off thyristor
A gate-turn-off thyristor has a documented gate-controlled turn-off capability.
Schematic
Symbols · IGCT
Integrated gate-commutated thyristor
A high-power thyristor device operated with an integrated gate-unit arrangement for controlled switching.
Schematic · IGCT
What it represents
A high-power thyristor device operated with an integrated gate-unit arrangement for controlled switching.
On a schematic, identify the anode/cathode power connections and associated gate unit and trace the converter leg and gate-unit supply/control interfaces. Keep the component tag and signal/reference names consistent across the control drawing, terminal schedule and device documentation.
An IGCT includes a specific gate-drive arrangement; its abbreviation is not interchangeable with a generic SCR or GTO.
The preview is an independently drawn educational functional reference. Add the selected component’s actual power pins, terminal numbers, timing or analogue reference details when producing a construction drawing.
How to read it
- Identify the anode/cathode power connections and associated gate unit.
- Trace the converter leg and gate-unit supply/control interfaces.
Information to show or reference
- Label the anode/cathode power connections and associated gate unit.
- Cross-reference the converter leg and gate-unit supply/control interfaces.
- Add the selected device or circuit documentation revision, power/reference connections and project signal convention.
A distinction that matters
An IGCT includes a specific gate-drive arrangement; its abbreviation is not interchangeable with a generic SCR or GTO.
Sources you can follow
These public references support the explanation and provide further detail. Their graphics and downloadable files remain with their publishers.
Integrated gate-commutated thyristor devices
Public primary manufacturer documentation establishes the component function or circuit/topology relationship. Preview geometry and drafting explanations are independently authored.
About this graphic
This illustration was authored independently by Elora Grid to explain the concept. It is not reproduced from a customer drawing, an official standard graphic or a manufacturer CAD file. Its correspondence to an exact IEC or IEEE symbol identifier has not been certified.
SVG and DXF downloads contain this original artwork. DXF uses unscaled drawing units; a GA envelope supplies no product dimensions, clearances or fabrication information. Original artwork is available under CC BY 4.0. Third-party references retain their own terms.
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