United States securities and exchange commission logo September 14, 2023 Thad Trent Chief Financial Officer ON Semiconductor Corporation 5701 N. Pima Road Scottsdale, Arizona 85250 Re: ON Semiconductor Corporation Form 10-K for the Fiscal Year Ended December 31, 2022 Filed February 6, 2023 File No. 001-39317 Dear Thad Trent: We have completed our review of your filing. We remind you that the company and its management are responsible for the accuracy and adequacy of their disclosures, notwithstanding any review, comments, action or absence of action by the staff. Sincerely, Division of Corporation Finance Office of Manufacturing