# Insulated-gate bipolar transistor

Canonical URL: https://eloragrid.ai/symbols/insulated-gate-bipolar-transistor
Publisher: Elora Grid
Updated: 2026-10-14
Lookup label: IGBT
Drawing use: Schematic
Reference families: Manufacturer

A power transistor combining insulated-gate control with a bipolar collector-emitter conduction structure.

## What it represents

A power transistor combining insulated-gate control with a bipolar collector-emitter conduction structure.
On a schematic, identify the gate drive, collector/emitter and any separate emitter-sense connection and trace the converter switching leg and driver return. Keep the component tag and signal/reference names consistent across the control drawing, terminal schedule and device documentation.
An IGBT is not a MOSFET with renamed pins; reverse conduction and antiparallel-diode arrangements depend on the selected device.
Terminal letters describe electrical roles, not package pin numbers. Check the selected public datasheet for the actual pin assignment, polarity and any internally connected terminals before completing the drawing.

## How to read it

- Identify the gate drive, collector/emitter and any separate emitter-sense connection.
- Trace the converter switching leg and driver return.

## Information to show or reference

- Label the gate drive, collector/emitter and any separate emitter-sense connection.
- Cross-reference the converter switching leg and driver return.
- Add the selected device or circuit documentation revision, power/reference connections and project signal convention.

## Important distinction

An IGBT is not a MOSFET with renamed pins; reverse conduction and antiparallel-diode arrangements depend on the selected device.

## Facts

- Common schematic mnemonic: IGBT — descriptive only; project/device documentation defines reference designations.
- Terminal / interface focus: The gate drive, collector/emitter and any separate emitter-sense connection
- Artwork scope: Original educational component glyph; not a certified standard graphic or package pinout.

## Public references

- [IGBT device families](https://www.infineon.com/products/power/igbt) — Infineon Technologies. Public primary manufacturer documentation establishes the component function or circuit/topology relationship. Preview geometry and drafting explanations are independently authored.

## Graphic scope

Independent original educational concept illustration by Elora Grid. Not a certified standards graphic or manufacturer footprint. Unitless; not to scale. Original artwork licence: https://creativecommons.org/licenses/by/4.0/. Publisher material is linked only.