PUBLISHER: Mordor Intelligence | PRODUCT CODE: 2124827
PUBLISHER: Mordor Intelligence | PRODUCT CODE: 2124827
According to Mordor Intelligence, the power transistor market size is expected to grow from USD 21.38 billion in 2025 to USD 22.63 billion in 2026 and is forecast to reach USD 30.07 billion by 2031 at 5.86% CAGR over 2026-2031.

This report is Segmented by Product (Low-Voltage FETs, and More), Material (Silicon, and More), Type (Bipolar Junction Transistor, and More), Packaging (Discrete Devices, and More). Power Rating (Low Power (Less Than 40 V), and More), End-User Industry (Data Centers and HPC, and More), Application (Inverters and Converters, and More), and Geography. The Market Forecasts are Provided in Terms of Value (USD).
SiC MOSFETs are displacing silicon IGBTs in 400 V and 800 V traction inverters because they deliver 40% lighter, 30% smaller assemblies and cut switching losses, which extends driving range. STMicroelectronics plans to commercialize fourth-generation STPOWER SiC MOSFETs in 2025, tailored for both voltage classes. A billion-euro supply deal between ST and Semikron covering SiC eMPack modules for a German automaker from 2025 anchors long-term demand. Chinese, Japanese, and South Korean OEMs are likewise integrating captive SiC modules, tightening ties with substrate makers. As assembly volumes rise, learning-curve savings partially offset today's SiC wafer premiums.
Roll-out timelines for 5G macro and small-cell radios drive urgent need for high-efficiency RF front ends. GaN high-electron-mobility transistors (HEMTs) handle wide bandwidth and high drain voltages without compromising linearity, making them preferred over LDMOS or GaAs in new radio architectures. Wolfspeed's 28 V, 30 W GaN HEMT die operates to 8 GHz, meeting telecom and satellite specifications while satisfying NASA reliability metrics. Asia-Pacific carriers, particularly in China and South Korea, remain the volume anchors; North America follows with mid-band deployments that stipulate stringent efficiency targets to curb site-level power bills. With private-network and satellite-internet roll-outs ahead, RF GaN remains on an upward curve.
Fourteen 200 mm SiC fabs announced since 2024 remain insufficient to eliminate the wafer deficit through the decade. Limited boule yields raise epitaxial wafer prices and inflate power-module bills of material, slowing adoption in cost-sensitive solar and industrial inverters. STMicroelectronics is investing EUR 5 billion in Catania to create a fully integrated SiC complex, aiming for 15,000 wafers/week by 2033. Multi-year wafer-supply agreements, such as Infineon-Wolfspeed's expanded pact, partially buffer availability, yet supply tightness persists until 200 mm crystal growth matures.
Other drivers and restraints analyzed in the detailed report include:
For complete list of drivers and restraints, kindly check the Table Of Contents.
MOSFETs contributed 45.55% of revenue in 2025, underscoring their ubiquity from handset chargers to industrial drives. The power transistor market size for wide-bandgap power transistors is projected to climb from USD 8.53 billion in 2026 to USD 12.49 billion by 2031, translating to an 7.95% CAGR. GaN gets a further boost from Infineon's CoolGaN G5 launch that embeds a Schottky diode, trimming dead-time and EMI.
Demand for IGBTs in traction inverters and industrial drives still rises, yet at a tempered rate as SiC options proliferate. Super-junction MOSFETs defend medium-voltage servers thanks to mature supply lines and cost position. RF & microwave transistors record healthy gains from telecom and satellite links as GaN displaces GaAs for higher-power services.
Silicon accounted for 70.40% of 2025 shipments, but GaN revenue is forecast to expand at a 9.45% CAGR, the steepest across materials. The power transistor market share for GaN surpassed 7.25% in 2025 and is on track to achieve low-teens penetration by 2031. Consumer fast-chargers, motor drives, and 48 V data-center rails form the early-majority demand pool.
SiC's stronghold remains applications above 600 V in EVs, solar, and storage. Market leader STMicroelectronics held 32.6% of SiC device revenue in 2024. Emerging candidates such as gallium oxide remain early-research propositions, yet they highlight ongoing material-science innovation.
Field-effect architectures captured 61.30% of 2025 revenue because power MOSFETs scale efficiently across voltage grades. The power transistor market size for FETs is set to expand steadily as design-ins migrate toward WBG platforms. Heterojunction bipolar transistors, though smaller, gain momentum in millimeter-wave 5G and low-Earth-orbit satellite payloads that prize high-frequency efficiency.
Bipolar-junction devices persist in legacy industrial controls where robustness trumps switching speed. Hybrid topologies that marry GaN gate drivers with SiC MOSFET output stages are surfacing, signaling convergent design approaches that favor system-centric optimization.
Asia Pacific generated 51.40% of power transistor market revenue in 2025 and holds undisputed volume leadership. China's EV output surge, combined with expanding domestic SiC and GaN fabs, cements demand across the supply chain. Japan and South Korea add high-value automotive and consumer-device design-ins, while India accelerates foundry investments under its semiconductor mission. Joint ventures such as STMicroelectronics-Sanan for 200 mm SiC production exemplify the region's bid to localize WBG capability. Thailand's 27% rise in integrated-circuit imports during 2024 signals broader regional integration.
North America and Europe jointly account for about 40% of the market, anchored in automotive power electronics, data-center infrastructure, and industrial automation. U.S. CHIPS Act incentives underpin a new wave of SiC and GaN fabs that prioritize automotive and defense supply resilience. Europe's Critical Raw Materials Act and innovation programs target DC-DC converters, solid-state transformers, and battery modules, reinforcing its power electronics value chain. Both regions cultivate technical partnerships to advance 200 mm SiC crystal growth and zero-defect GaN epitaxy.
The Middle East & Africa represent a small but fastest-growing slice, with an 8.45% CAGR forecast to 2031. National programs such as Saudi Vision 2030 and the UAE's G42 semiconductor push channel investment into renewable energy inverters, data-center clusters, and EV charging corridors. Abundant solar irradiation and favorable power tariffs provide a natural pull for high-voltage SiC device deployment, while local design hubs attract diaspora engineering talent.