ON Semiconductor Corp.
onsemi (ON)
Overview
ON Semiconductor Corporation, which does business as "onsemi," is a Scottsdale, Arizona-based semiconductor designer and manufacturer operating in the Technology sector's semiconductor industry. Spun off from Motorola's semiconductor division in 1999 and taken public in 2000, onsemi has grown through major acquisitions — including SANYO Semiconductor in 2011 and Fairchild Semiconductor in 2016 — into a top-20 global chipmaker with roughly 22,600 employees and a portfolio of more than 25,000 product SKUs. The company generates around $6.2 billion in trailing annual revenue and carries a market capitalization near $29 billion, with its business increasingly concentrated on power management and sensing chips for automotive, industrial, and, more recently, AI data center applications.
What They Do & How They Make Money
onsemi designs and sells semiconductors that don't compute or store data in the way a CPU or memory chip does — instead, they manage power (converting, regulating, and switching electrical current efficiently) and sense the physical world (capturing images, light, and depth for machines to interpret). Revenue comes from selling these chips to original equipment manufacturers (OEMs) and their suppliers, primarily in automotive and industrial end markets, through a mix of direct sales to large customers and distribution partners for smaller ones. The company's growth strategy centers on capturing more "content" — more dollars of onsemi silicon — per vehicle or per industrial system as electrification and automation increase, particularly through its silicon carbide (SiC) technology, which is especially well-suited to the high-voltage power conversion needs of electric vehicles. onsemi has also been pushing into AI data centers, where its power semiconductors help manage the enormous and rapidly growing electricity demands of AI computing hardware — a newer but fast-growing revenue stream that more than doubled year-over-year in early 2026.
Business Segments
onsemi organizes its business into three operating segments:
- Power Solutions Group (PSG) — designs and manufactures discrete, module, and integrated semiconductor devices for power conversion and power management, including power switching, signal conditioning, and circuit protection components, along with the company's silicon carbide (SiC) portfolio used heavily in EV powertrains and industrial power systems. This is a core growth engine, with products like the new GaNEXUS gallium nitride power portfolio targeting AI data centers and industrial automation.
- Analog and Mixed-Signal Group (AMG) — develops analog and mixed-signal chips for power management, sensor interfacing, and connectivity, serving automotive, industrial automation, AI data center, computing, and mobile markets.
- Intelligent Sensing Group (ISG) — produces CMOS image sensors, image signal processors, short-wave infrared (SWIR) sensors, single-photon avalanche diode (SPAD) arrays, and silicon photomultiplier (SiPM) devices used for depth sensing, factory automation, robotics, and safety systems (including automotive driver-assistance and in-cabin sensing).
The company does not break out granular segment revenue and profit publicly beyond these three groups, but automotive and industrial customers together represent the substantial majority of total revenue, with SiC-based power products being the fastest-growing and most closely watched product line given the strategic importance of electric-vehicle content growth.
Competitors
- Power semiconductors and silicon carbide: Infineon Technologies and STMicroelectronics are onsemi's largest direct competitors in automotive and industrial power semiconductors and SiC, with Wolfspeed a smaller but SiC-focused specialist competitor.
- Analog and mixed-signal: Texas Instruments, Analog Devices, NXP Semiconductors, and Renesas Electronics compete across various analog, power-management, and automotive-electronics product lines.
- Broader diversified semiconductor competitors: Microchip Technology and Vishay Intertechnology overlap in parts of onsemi's discrete and power-component portfolio.
- Image sensing: Sony Semiconductor Solutions and OmniVision Technologies compete in CMOS image sensors, though onsemi's sensing focus is weighted more toward industrial, automotive, and depth-sensing applications than consumer cameras.
Competitive Position
onsemi's most important competitive asset is its vertically integrated silicon carbide manufacturing — controlling the process from crystal growth through wafer fabrication to finished modules — which gives it cost and supply-chain advantages as SiC demand grows with EV adoption. That position has translated into design wins with major automakers, including an expanded collaboration with Geely on 900-volt EV architectures and a continuing relationship with Rivian, cementing onsemi as a preferred power-semiconductor supplier as automakers standardize on higher-voltage EV platforms that particularly benefit from SiC's efficiency advantages over traditional silicon. The company's pending roughly $7 billion acquisition of Synaptics is intended to extend this position into Edge AI and connectivity chips, an effort to diversify beyond automotive/industrial cyclicality and address a total addressable market management estimates could expand by $30 billion by 2030. Recent results show meaningful operating leverage, with free cash flow quadrupling year-over-year in a recent quarter and non-GAAP earnings growing roughly four times faster than revenue, reflecting cost discipline including facility divestitures in the Philippines and Pennsylvania.
The principal risks are cyclicality and competitive intensity. onsemi's core automotive and industrial end markets are notoriously cyclical, and any slowdown in EV adoption or industrial capital spending would directly hit demand for its highest-growth SiC products. The SiC market itself has become considerably more competitive as Wolfspeed, STMicroelectronics, and Infineon have all expanded capacity, raising the risk of pricing pressure just as onsemi's own SiC investments are meant to pay off. Customer concentration among a relatively small number of large automotive OEMs adds revenue risk if any single relationship weakens. Chinese semiconductor competitors, often supported by state subsidies, are also emerging as lower-cost alternatives in power semiconductors, a long-term structural risk to onsemi's pricing power in cost-sensitive segments. Finally, the pending Synaptics acquisition carries typical integration risk — execution missteps or slower-than-expected synergy realization could offset the strategic benefit of diversifying into Edge AI.