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
                                                            Form 10-K for the
Fiscal Year Ended December 31, 2022
                                                            Filed February 6,
                                                            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.


                     Division of Corporation Finance

                     Office of Manufacturing