Toshiba Electronic Devices & Storage Corporation (東芝) states that an IGBT (Insulated Gate Bipolar Transistor) combines the high input impedance of a MOSFET with the low on-state voltage characteristic of a bipolar transistor (BJT)CITE:E1. The company explains that this hybrid structure places a MOSFET on the input side and a bipolar transistor (BJT) on the output sideCITE:E2. Toshiba further describes the switching mechanism: the device turns power on and off between the collector and emitter by controlling the voltage between the gate and emitter, in the same way a MOSFET doesCITE:E4. In other words, the gate-driven, high-impedance input inherited from the MOSFET side governs a bipolar-style output stage capable of carrying higher current.
Toshiba's discrete IGBT lineup covers a collector-emitter voltage range of 300 to 800V and a DC current range of 5 to 80ACITE:E3.
| Specification | Range |
|---|---|
| Collector-Emitter Voltage | 300V – 800V |
| DC Current | 5A – 80A |
This voltage and current spread positions discrete IGBTs for switching tasks that require handling more current than typical small-signal MOSFETs while still being controlled through a gate-voltage interfaceCITE:E3.
onsemi supplies IGBTs for electronic ignition, flash, motor drive, and other high-current switching applicationsCITE:E5. Mitsubishi Electric (三菱電機) states that its power modules serve a wide range of applications spanning industrial equipment, electric railway, and automotive systemsCITE:E6. Together, the two companies' stated use cases span consumer ignition and flash circuits through to industrial, rail, and automotive power systems.
Mitsubishi Electric states that its IGBT module reduces external size by approximately 36% compared to conventional productsCITE:E7. The company says this reduction contributes to the miniaturization of industrial equipment, which it refers to as CIBCITE:E7.
What this means: the structural description from Toshiba — a MOSFET-style gate driving a BJT-style output — explains why a single device family can span a 300–800V, 5–80A range while still being controlled through gate voltageCITE:E1CITE:E3CITE:E4. That same electrical range aligns with the motor-drive, industrial, rail, and automotive applications that onsemi and Mitsubishi Electric each cite for their IGBT productsCITE:E5CITE:E6, and Mitsubishi Electric's approximately 36% external-size reduction shows one concrete way module design has moved to fit those same industrial-equipment applicationsCITE:E7.
Toshiba Electronic Devices & Storage Corporation (東芝) states that an IGBT (Insulated Gate Bipolar Transistor) combines the high input impedance of a MOSFET with…
Toshiba's discrete IGBT lineup covers a collector-emitter voltage range of 300 to 800V and a DC current range of 5 to 80ACITE:E3.
onsemi supplies IGBTs for electronic ignition, flash, motor drive, and other high-current switching applicationsCITE:E5.
Mitsubishi Electric states that its IGBT module reduces external size by approximately 36% compared to conventional productsCITE:E7.
The technical detail worth isolating here is the split architecture itself: a MOSFET-style gate input paired with a BJT-style output stage is what lets one device family cover a 300–800V, 5–80A range while still being driven through simple gate-voltage control, rather than the base-current drive a pure BJT would need. That structural choice is also what makes the device suit both onsemi's high-current switching use cases and Mitsubishi Electric's industrial, rail, and automotive power modules — the same gate-driven mechanism scales across very different current and voltage demands. The concrete indicator to watch next is packaging: Mitsubishi Electric's roughly 36% external-size reduction on its latest IGBT module suggests miniaturization, not voltage or current range, may be the next axis IGBT vendors compete on for industrial equipment.
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