Exhibit 24.1

POWER OF ATTORNEY

(Keith D. Jackson)

I hereby appoint Bernard Gutmann, George H. Cave and Mark N. Rogers, and each of them, my attorneys-in-fact, each with full power of substitution, to sign for me on behalf of the registrant, ON Semiconductor Corporation, and/or as a Director and/or Chief Executive Officer (i.e., as principal executive officer) of ON Semiconductor Corporation and file with the Securities and Exchange Commission the Corporation’s Form 10-K Annual Report for 2014, and any amendments.

Dated: February 6, 2015

/s/ KEITH D. JACKSON

Keith D. Jackson

POWER OF ATTORNEY

(Bernard Gutmann)

I hereby appoint George H. Cave and Mark N. Rogers, and each of them, my attorneys-in-fact, each with full power of substitution, to sign for me on behalf of the registrant, ON Semiconductor Corporation, and/or as a Chief Financial Officer (i.e., as both principal financial officer and principal accounting officer) of ON Semiconductor Corporation and file with the Securities and Exchange Commission the Corporation’s Form 10-K Annual Report for 2014, and any amendments.

Dated: February 6, 2015

/s/ BERNARD GUTMANN

Bernard Gutmann

POWER OF ATTORNEY

(J. Daniel McCranie)

I hereby appoint Bernard Gutmann, George H. Cave and Mark N. Rogers, and each of them, my attorneys-in-fact, each with full power of substitution, to sign for me as Chairman of the Board of Directors of ON Semiconductor Corporation and file with the Securities and Exchange Commission the Corporation’s Form 10-K Annual Report for 2014, and any amendments.

Dated: February 6, 2015

/s/ J. DANIEL MCCRANIE

J. Daniel McCranie

POWER OF ATTORNEY

(Atsushi Abe)

I hereby appoint Bernard Gutmann, George H. Cave and Mark N. Rogers, and each of them, my attorneys-in-fact, each with full power of substitution, to sign for me as a Director of ON Semiconductor Corporation and file with the Securities and Exchange Commission the Corporation’s Form 10-K Annual Report for 2014, and any amendments.

Dated: February 6, 2015

/s/ ATSUSHI ABE

Atsushi Abe

POWER OF ATTORNEY

(Curtis J. Crawford)

I hereby appoint Bernard Gutmann, George H. Cave and Mark N. Rogers, and each of them, my attorneys-in-fact, each with full power of substitution, to sign for me as a Director of ON Semiconductor Corporation and file with the Securities and Exchange Commission the Corporation’s Form 10-K Annual Report for 2014, and any amendments.

Dated: February 6, 2015

/s/ CURTIS J. CRAWFORD

Curtis J. Crawford

POWER OF ATTORNEY

(Bernard L. Han)

I hereby appoint Bernard Gutmann, George H. Cave and Mark N. Rogers, and each of them, my attorneys-in-fact, each with full power of substitution, to sign for me as a Director of ON Semiconductor Corporation and file with the Securities and Exchange Commission the Corporation’s Form 10-K Annual Report for 2014, and any amendments.

Dated: February 6, 2015

/s/ BERNARD L. HAN

Bernard L. Han

POWER OF ATTORNEY

(Emmanuel T. Hernandez)

I hereby appoint Bernard Gutmann, George H. Cave and Mark N. Rogers, and each of them, my attorneys-in-fact, each with full power of substitution, to sign for me as Director of ON Semiconductor Corporation and file with the Securities and Exchange Commission the Corporation’s Form 10-K Annual Report for 2014, and any amendments.

Dated: February 6, 2015

/s/ EMMANUEL T. HERNANDEZ

Emmanuel T. Hernandez

POWER OF ATTORNEY

(Paul Mascarenas)

I hereby appoint Bernard Gutmann, George H. Cave and Mark N. Rogers, and each of them, my attorneys-in-fact, each with full power of substitution, to sign for me as a Director of ON Semiconductor Corporation and file with the Securities and Exchange Commission the Corporation’s Form 10-K Annual Report for 2014, and any amendments.

Dated: February 6, 2015

/s/ PAUL MASCARENAS

Paul Mascarenas

POWER OF ATTORNEY

(Daryl A. Ostrander)

I hereby appoint Bernard Gutmann, George H. Cave and Mark N. Rogers, and each of them, my attorneys-in-fact, each with full power of substitution, to sign for me as a Director of ON Semiconductor Corporation and file with the Securities and Exchange Commission the Corporation’s Form 10-K Annual Report for 2014, and any amendments.

Dated: February 6, 2015

/s/ DARYL A. OSTRANDER

Daryl A. Ostrander

POWER OF ATTORNEY

(Teresa M. Ressel)

I hereby appoint Bernard Gutmann, George H. Cave and Mark N. Rogers, and each of them, my attorneys-in-fact, each with full power of substitution, to sign for me as a Director of ON Semiconductor Corporation and file with the Securities and Exchange Commission the Corporation’s Form 10-K Annual Report for 2014, and any amendments.

Dated: February 6, 2015

/s/ TERESA M. RESSEL

Teresa M. Ressel