<SEC-DOCUMENT>0001384707-17-000009-index.html : 20170207
<SEC-HEADER>0001384707-17-000009.hdr.sgml : 20170207
<ACCEPTANCE-DATETIME>20170207164922
ACCESSION NUMBER:		0001384707-17-000009
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20161212
FILED AS OF DATE:		20170207
DATE AS OF CHANGE:		20170207

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			LITTELFUSE INC /DE
		CENTRAL INDEX KEY:			0000889331
		STANDARD INDUSTRIAL CLASSIFICATION:	SWITCHGEAR & SWITCHBOARD APPARATUS [3613]
		IRS NUMBER:				363795742
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		8755 WEST HIGGINS ROAD
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60631
		BUSINESS PHONE:		773-628-1000

	MAIL ADDRESS:	
		STREET 1:		8755 WEST HIGGINS ROAD
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60631

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			NOGLOWS WILLIAM P
		CENTRAL INDEX KEY:			0001201094

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-20388
		FILM NUMBER:		17579719

	MAIL ADDRESS:	
		STREET 1:		C/O CABOT MICROELECTRONICS CORP
		STREET 2:		870 N. COMMONS DR
		CITY:			AURORA
		STATE:			IL
		ZIP:			60504
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
Document 1 - file: primary_doc.html

Document 1 - RAW XML: primary_doc.xml

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-24
<SEQUENCE>2
<FILENAME>wpnsecpoa.txt
<DESCRIPTION>POWER OF ATTORNEY
<TEXT>
Document 2 - file: wpnsecpoa.txt

</DOCUMENT>
</SEC-DOCUMENT>