ON Semiconductor : 2022 Proxy Card

ON SEMICONDUCTOR CORPORATION 5005 EAST MCDOWELL ROAD PHOENIX, AZ 85008

ATTN: LAW DEPARTMENT

TO VOTE, MARK BLOCKS BELOW IN BLUE OR BLACK INK AS FOLLOWS:

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Use the Internet to transmit your voting instructions and for electronic delivery of information up until 11:59 p.m. Eastern Time the day before the cut-off date or meeting date. Have your proxy card in hand when you access the website and follow the instructions to obtain your records and to create an electronic voting instruction form.

ELECTRONIC DELIVERY OF FUTURE PROXY MATERIALS

If you would like to reduce the costs incurred by ON Semiconductor Corporation ("we" or the "Company") in mailing proxy materials, you can consent to receiving all future proxy statements, proxy cards and annual reports electronically via e-mail or the Internet. To sign up for electronic delivery, please follow the instructions above to vote using the Internet and, when prompted, indicate that you agree to receive or access proxy materials electronically in future years.

VOTE BY PHONE - 1-800-690-6903

Use any touch-tone telephone to transmit your voting instructions up until 11:59 p.m. Eastern Time the day before the cut-off date or meeting date. Have your proxy card in hand when you call and then follow the instructions.

VOTE BY MAIL

Mark, sign and date your proxy card and return it in the postage-paid envelope we have provided or return it to Vote Processing, c/o Broadridge, 51 Mercedes Way, Edgewood, NY 11717.

D71272-P64883

THIS PROXY CARD IS VALID ONLY WHEN SIGNED AND DATED.

ON SEMICONDUCTOR CORPORATION

The Board of Directors recommends a vote FOR each of

the listed director nominees:

1.

To elect ten directors, each for a one-year term expiring at the 2023 Annual Meeting of Stockholders and until their successors are duly elected and qualified, or until the earlier time of their death, resignation or removal.

Nominees:

• 1a. Atsushi Abe

• 1b. Alan Campbell

• 1c. Susan K. Carter

• 1d. Thomas L. Deitrich

• 1e. Gilles Delfassy

• 1f. Hassane El-Khoury

  For Against Abstain

  KEEP THIS PORTION FOR YOUR RECORDS DETACH AND RETURN THIS PORTION ONLY

  The Board of Directors recommends a vote FOR Proposals

  • 2 and 3.

• 1g. Bruce E. Kiddoo

• 1h. Paul A. Mascarenas

• 1i. Gregory L. Waters

• 1j. Christine Y. Yan

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• 2. Advisory (non-binding) resolution to approve the compensation of our named executive officers.

• 3. Ratification of the selection of PricewaterhouseCoopers LLP as our independent registered public accounting firm for the year ending December 31, 2022.

NOTE: To transact such other business as may properly come before the meeting and any adjournment or postponement of the meeting.

Please sign exactly as your name(s) appear(s) hereon. Joint owners should each sign. When signing as attorney, executor, administrator, corporate officer, trustee, guardian or custodian, please give full title.

Signature [PLEASE SIGN WITHIN BOX]

Date

Signature (Joint Owners)

For Against Abstain

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Date

Important Notice Regarding the Availability of Proxy Materials for the Annual Meeting:

The Notice and Proxy Statement and Annual Report are available atwww.proxyvote.com.

D71273-P64883

ON SEMICONDUCTOR CORPORATION

Annual Meeting of Stockholders

May 26, 2022, 8:00 a.m. local time

This proxy is solicited by the Board of Directors

The stockholder(s) hereby appoint(s) Alan Campbell, Hassane El-Khoury and Pamela Tondreau, or any of them, as proxies, each with the power to appoint (his/her) substitute, and hereby authorize(s) them to represent and to vote, as designated on the reverse side of this ballot, all of the shares of common stock of ON Semiconductor Corporation that the stockholder(s) is/are entitled to vote at the Annual Meeting of Stockholders to be held at 8:00 a.m. (local time), on May 26, 2022, at the Company's principal executive office at 5005 East McDowell Road, Phoenix, AZ 85008, and any adjournment or postponement thereof.

This proxy, when properly executed, will be voted in the manner directed herein. If no such direction is made, this proxy will be voted in accordance with the Board of Directors' recommendations.

Continued and to be signed on reverse side