Mitsubishi Electric (power devices)
One of Japan's largest power semiconductor makers, supplying IGBT and SiC power modules for trains, industrial drives, EVs and power grids. It is building a new 8-inch SiC wafer plant in Kumamoto.
三菱電機・Chipmakers・Last updated: October 22, 2026
Overview
Mitsubishi Electric was founded in 1921 and is headquartered in Chiyoda, Tokyo. Its power device business is based in Fukuoka, with wafer fabs in Koshi (Kumamoto), Fukuyama (Hiroshima) and Itami (Hyogo).
In March 2023 it doubled its five-year investment plan to about 260 billion yen through March 2026, including about 100 billion yen for a new 8-inch SiC wafer plant at its site in the Shisui area of Kumamoto Prefecture.
Business: IGBT and SiC power modules, RF and optical devices
Why it matters
Main products
- •IGBT power modules
- •SiC power modules
- •High-frequency and optical devices
Sites in Japan
Chiyoda, Tokyo
Fukuoka, Fukuoka
Koshi, Kumamoto
Fukuyama, Hiroshima
Itami, Hyogo
Fabs operated
- Koshi Factory (Koshi, Kumamoto): Power semiconductors
- Itami Factory (Itami, Hyogo): Power semiconductors, high-frequency and optical devices
- Fukuyama Factory (Fukuyama, Hiroshima): Power semiconductors