<SEC-DOCUMENT>0001104659-18-002723-index.html : 20180118
<SEC-HEADER>0001104659-18-002723.hdr.sgml : 20180118
<ACCEPTANCE-DATETIME>20180118060042
ACCESSION NUMBER:		0001104659-18-002723
CONFORMED SUBMISSION TYPE:	8-K
PUBLIC DOCUMENT COUNT:		7
CONFORMED PERIOD OF REPORT:	20180115
ITEM INFORMATION:		Entry into a Material Definitive Agreement
ITEM INFORMATION:		Completion of Acquisition or Disposition of Assets
ITEM INFORMATION:		Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant
ITEM INFORMATION:		Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers
ITEM INFORMATION:		Other Events
ITEM INFORMATION:		Financial Statements and Exhibits
FILED AS OF DATE:		20180118
DATE AS OF CHANGE:		20180118

FILER:

	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

	FILING VALUES:
		FORM TYPE:		8-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-20388
		FILM NUMBER:		18532846

	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
</SEC-HEADER>
<DOCUMENT>
<TYPE>8-K
<SEQUENCE>1
<FILENAME>a18-3337_18k.htm
<DESCRIPTION>8-K
<TEXT>
Document 1 - file: a18-3337_18k.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-10.2
<SEQUENCE>2
<FILENAME>a18-3337_1ex10d2.htm
<DESCRIPTION>EX-10.2
<TEXT>
Document 2 - file: a18-3337_1ex10d2.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-10.3
<SEQUENCE>3
<FILENAME>a18-3337_1ex10d3.htm
<DESCRIPTION>EX-10.3
<TEXT>
Document 3 - file: a18-3337_1ex10d3.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-10.4
<SEQUENCE>4
<FILENAME>a18-3337_1ex10d4.htm
<DESCRIPTION>EX-10.4
<TEXT>
Document 4 - file: a18-3337_1ex10d4.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.1
<SEQUENCE>5
<FILENAME>a18-3337_1ex99d1.htm
<DESCRIPTION>EX-99.1
<TEXT>
Document 5 - file: a18-3337_1ex99d1.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>6
<FILENAME>g33371kmi001.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 6 - file: g33371kmi001.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>7
<FILENAME>g33371mmi001.gif
<DESCRIPTION>GRAPHIC
<TEXT>
Document 7 - file: g33371mmi001.gif

</DOCUMENT>
</SEC-DOCUMENT>