Exhibit 24.1

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 (the “Corporation”) and file with the Securities and Exchange Commission the Corporation’s Annual Report on Form 10-K for 2017, and any amendments.

Dated: February 21, 2018

/s/ ATSUSHI ABE

Atsushi Abe

POWER OF ATTORNEY

(Alan Campbell)

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 (the “Corporation”) and file with the Securities and Exchange Commission the Corporation’s Annual Report on Form 10-K for 2017, and any amendments.

Dated: February 21, 2018

/s/ ALAN CAMPBELL

Alan Campbell

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 (the “Corporation”) and file with the Securities and Exchange Commission the Corporation’s Annual Report on Form 10-K for 2017, and any amendments.

Dated: February 21, 2018

/s/ CURTIS J. CRAWFORD

Curtis J. Crawford

POWER OF ATTORNEY

(Gilles Delfassy)

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 (the “Corporation”) and file with the Securities and Exchange Commission the Corporation’s Annual Report on Form 10-K for 2017, and any amendments.

Dated: February 21, 2018

/s/ GILLES DELFASSY

Gilles Delfassy

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 (the “Corporation”) and file with the Securities and Exchange Commission the Corporation’s Annual Report on Form 10-K for 2017, and any amendments.

Dated: February 21, 2018

/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 (the ”Corporation”) and file with the Securities and Exchange Commission the Corporation’s Annual Report on Form 10-K for 2017, and any amendments.

Dated: February 21, 2018

/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 (the “Corporation”) and file with the Securities and Exchange Commission the Corporation’s Annual Report on Form 10-K for 2017, and any amendments.

Dated: February 21, 2018

/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 (the “Corporation”) and file with the Securities and Exchange Commission the Corporation’s Annual Report on Form 10-K for 2017, and any amendments.

Dated: February 21, 2018

/s/ TERESA M. RESSEL

Teresa M. Ressel