IGBT Modules (HVAC inverter drives)

Japanese electrical equipment and semiconductor company (TSE: 6504); produces X-Series IGBT-based IPM modules for air conditioners, inverters, and servo systems. Dual-In-Line Small IPMs (15-30A/600V) with integrated protection circuits for appliance applications. Fuji Electric is a significant Japanese IPM producer alongside Mitsubishi; supplies both Japanese appliance OEMs and global export markets. Also manufactures power generation equipment and vending machines — same company makes power semiconductors and industrial vending machines.

German power semiconductor company (FSE: IFX, HQ Neubiberg); produces CIPOS (Compact Intelligent Power Module) IPM series for home appliance motor drives (Nano/Micro/Mini/Maxi variants). ~40% combined IGBT market share alongside Mitsubishi Electric. Infineon acquired International Rectifier (2015) and Cypress Semiconductor (2020), making it the world's largest automotive semiconductor supplier and one of the largest power electronics suppliers. Primary IGBT/IPM manufacturing at Villach, Austria (300mm wafer fab). Same Infineon that makes chips for every modern car's power electronics also makes the inverter module in a washing machine.

Japanese diversified electronics conglomerate (TSE: 6503); semiconductor division produces DIPIPM (Dual-In-line Packaged Intelligent Power Module) — the de facto standard for Japanese and Korean appliance inverter motor control since commercialization in 1997. Product family: Super Mini DIPIPM, Mini DIPIPM, Compact DIPIPM, and DIPIPM+ for washing machines, inverter air conditioners, and heat pump water heaters. Market leader in appliance IPMs (identified as #1 globally alongside Infineon in IGBT/IPM). Over 36% of automated manufacturing facilities use Mitsubishi's ultra-compact IPM modules. Same company also supplies IGBT modules for EV traction — appliance and automotive IGBT share production facilities and supply chains, creating cross-sector shortage cascade risk.

Fast-growing US automotive power semiconductor company; pivoted from consumer electronics to automotive as EV adoption accelerated. Major supplier of silicon carbide (SiC) power modules for EV inverters (competing with Wolfspeed, STMicro). Acquired GTAT SiC wafer business. Supply of EV traction inverter chips is Onsemi's primary growth driver. Acquired GT Advanced Technologies (SiC). NYSE: ON.

World's largest SiC substrate and RF GaN wafer manufacturer. Controls 33.7% of SiC substrate market and 60% of world SiC materials capacity. Spun out of Cree, Inc. in 2021. Filed Chapter 11 bankruptcy June 2025 after EV demand slowdown and Chinese SiC competition drove a 30% wafer price drop; emerged September 2025 with $4.6B debt eliminated. Building "The Moat" — the world's largest SiC fab in Siler City, NC (2M+ sq ft).