<SEC-DOCUMENT>0001437749-18-014981-index.html : 20180809
<SEC-HEADER>0001437749-18-014981.hdr.sgml : 20180809
<ACCEPTANCE-DATETIME>20180808205430
ACCESSION NUMBER:		0001437749-18-014981
CONFORMED SUBMISSION TYPE:	S-8
PUBLIC DOCUMENT COUNT:		3
FILED AS OF DATE:		20180809
DATE AS OF CHANGE:		20180808
EFFECTIVENESS DATE:		20180809

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:		S-8
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-226707
		FILM NUMBER:		181002941

	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>S-8
<SEQUENCE>1
<FILENAME>lfus20180806_s8.htm
<DESCRIPTION>FORM S-8
<TEXT>
Document 1 - file: lfus20180806_s8.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-5.1
<SEQUENCE>2
<FILENAME>ex_121056.htm
<DESCRIPTION>EXHIBIT 5.1
<TEXT>
Document 2 - file: ex_121056.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-23.1
<SEQUENCE>3
<FILENAME>ex_120760.htm
<DESCRIPTION>EXHIBIT 23.1
<TEXT>
Document 3 - file: ex_120760.htm

</DOCUMENT>
</SEC-DOCUMENT>