<SEC-DOCUMENT>0001193125-19-157068-index.html : 20190524
<SEC-HEADER>0001193125-19-157068.hdr.sgml : 20190524
<ACCEPTANCE-DATETIME>20190524163056
ACCESSION NUMBER:		0001193125-19-157068
CONFORMED SUBMISSION TYPE:	SD
PUBLIC DOCUMENT COUNT:		6
<RULE>
<RULE-NAME>13p-1
<ITEM>
<ITEM-NUMBER>1.01
<ITEM-PERIOD>20181231
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<ITEM>
<ITEM-NUMBER>1.02
<ITEM-PERIOD>20181231
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FILED AS OF DATE:		20190524
DATE AS OF CHANGE:		20190524

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ON SEMICONDUCTOR CORP
		CENTRAL INDEX KEY:			0001097864
		STANDARD INDUSTRIAL CLASSIFICATION:	SEMICONDUCTORS & RELATED DEVICES [3674]
		IRS NUMBER:				363840979
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SD
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-30419
		FILM NUMBER:		19854858

	BUSINESS ADDRESS:	
		STREET 1:		5005 EAST MCDOWELL ROAD
		CITY:			PHOENIX
		STATE:			AZ
		ZIP:			85008
		BUSINESS PHONE:		6022446600

	MAIL ADDRESS:	
		STREET 1:		5005 EAST MCDOWELL ROAD
		CITY:			PHOENIX
		STATE:			AZ
		ZIP:			85008

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	SCG HOLDING CORP
		DATE OF NAME CHANGE:	19991027
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<TYPE>SD
<SEQUENCE>1
<FILENAME>d767156dsd.htm
<DESCRIPTION>SD
<TEXT>
Document 1 - file: d767156dsd.htm

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<DOCUMENT>
<TYPE>EX-1.01
<SEQUENCE>2
<FILENAME>d767156dex101.htm
<DESCRIPTION>EX-1.01
<TEXT>
Document 2 - file: d767156dex101.htm

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<SEQUENCE>3
<FILENAME>g767156g36h62.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 3 - file: g767156g36h62.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>g767156g59f37.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 4 - file: g767156g59f37.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>5
<FILENAME>g767156g85i02.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 5 - file: g767156g85i02.jpg

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<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>6
<FILENAME>g767156g93e44.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 6 - file: g767156g93e44.jpg

</DOCUMENT>
</SEC-DOCUMENT>