UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D. C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 OR 15(d) of The

Securities Exchange Act of 1934

August 30, 2012

Date of report (Date of earliest event reported)

ON Semiconductor Corporation

(Exact name of registrant as specified in its charter)

Delaware	000-30419	36-3840979
(State or other jurisdiction of incorporation)	(Commission File Number)	(IRS Employer Identification No.)
ON Semiconductor Corporation 5005 E. McDowell Road Phoenix, Arizona		85008
(Address of principal executive offices)		(Zip Code)

(602) 244-6600

(Registrant’s telephone number, including area code)

Not applicable

(Former name or former address, if changed since last report.)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

¨ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

¨ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

¨ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

¨ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Item 5.02. Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.

(b) ON Semiconductor Corporation (“Company”) is announcing a change to the Company’s chief operating officer position and related roles and responsibilities. On August 30, 2012, W. John Nelson, our current Executive Vice President and Chief Operating Officer, advised the Company of his decision to resign as an officer of the Company in order to become the chief executive officer of an Asia-based, semiconductor related manufacturing company. It is anticipated that Dr. Nelson will remain in his existing positions at the Company until approximately September 28, 2012. During this transition period, the Company intends to (i) redistribute Dr. Nelson’s global responsibilities internally within the current management team, and (ii) not hire a replacement chief operating officer.

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SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

		ON SEMICONDUCTOR CORPORATION
		(Registrant)
Date: August 31, 2012	By:	/S/ KEITH D. JACKSON
		Keith D. Jackson
		Chief Executive Officer and President

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