ON Semiconductor, now known as Onsemi, was founded with the core mission of providing advanced semiconductor solutions to enhance energy efficiency and enable innovative electronics. The company focuses on supplying analog, standard logic, and discrete semiconductors for data and power management. Their product portfolio includes integrated circuits (ICs), analog ICs, and discrete semiconductors in various surface mount and standard packages. Onsemi targets a broad market, including automotive, industrial, cloud power, and IoT sectors.

Notable affiliated individuals include Hassane El-Khoury, who has been instrumental in driving the company's strategic direction. Key investors have included prominent venture capital firms and industry stakeholders. Onsemi has achieved significant milestones, such as the development of high-power IGBT modules and leading MOSFET technologies that revolutionize data center performance. The company's impact is evident in its contributions to energy-efficient technologies and robust semiconductor solutions that support critical market needs globally.