Renesas Adds 100V GaN FETs for AI and Industrial Power Conversion - EE Times India

Renesas's 100V GaN FET entry is not a catalog update—it is a positional play in the AI power architecture reshuffle. The 100V node sits precisely at the intermediate conversion stage between 48V bus rails and GPU/ASIC supply rails, and at the low-voltage core of industrial servo drives. This band has long been silicon SuperJunction MOSFET territory. GaN's 3-5x switching frequency advantage here directly shrinks magnetics footprint. Upstream, MOCVD epi capacity will shift toward mid-low voltage; downstream, NVIDIA's 800V HVDC roadmap is pulling the entire stack toward GaN as the default. Risk calculus: Renesas's fabs in Japan and packaging in Taiwan, China keep it largely insulated from US export controls near-term, but Aixtron/Veeco MOCVD equipment licensing remains a hidden chokepoint. The 100V GaN gate-drive circuit is EMI-sensitive; any EU CE/UL certification delay compresses the 2026 AI server production window. Competitive dynamics: Infineon owns brand equity at 650V+ but is thin at 100V—Renesas's differentiation wedge. Navitas and EPC iterate faster; Innoscience is penetrating the 60-100V band on cost. Renesas's real moat is the analog + MCU + power-management system-level bundle that locks in industrial customers. Projection: within 18 months, 100V GaN shifts from optional alternative to default choice. Silicon MOSFET gross margins in this band will compress below 15%, triggering consolidation among mid-power device makers.