<SEC-DOCUMENT>0001437749-18-004809-index.html : 20180316
<SEC-HEADER>0001437749-18-004809.hdr.sgml : 20180316
<ACCEPTANCE-DATETIME>20180316080056
ACCESSION NUMBER:		0001437749-18-004809
CONFORMED SUBMISSION TYPE:	DEF 14A
PUBLIC DOCUMENT COUNT:		17
CONFORMED PERIOD OF REPORT:	20180427
FILED AS OF DATE:		20180316
DATE AS OF CHANGE:		20180316
EFFECTIVENESS DATE:		20180316

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:		DEF 14A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-20388
		FILM NUMBER:		18694225

	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>DEF 14A
<SEQUENCE>1
<FILENAME>lfus20180308_def14a.htm
<DESCRIPTION>FORM DEF 14A
<TEXT>
Document 1 - file: lfus20180308_def14a.htm
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>2 <FILENAME>prx2.jpg <TEXT> Document 2 - file: prx2.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>3 <FILENAME>prx1.jpg <TEXT> Document 3 - file: prx1.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>4 <FILENAME>x3.jpg <TEXT> Document 4 - file: x3.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>5 <FILENAME>image13.jpg <TEXT> Document 5 - file: image13.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>6 <FILENAME>image12.jpg <TEXT> Document 6 - file: image12.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>7 <FILENAME>image11.jpg <TEXT> Document 7 - file: image11.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>8 <FILENAME>image10.jpg <TEXT> Document 8 - file: image10.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>9 <FILENAME>image09.jpg <TEXT> Document 9 - file: image09.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>10 <FILENAME>image08.jpg <TEXT> Document 10 - file: image08.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>11 <FILENAME>image07.jpg <TEXT> Document 11 - file: image07.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>12 <FILENAME>image06.jpg <TEXT> Document 12 - file: image06.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>13 <FILENAME>image05.jpg <TEXT> Document 13 - file: image05.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>14 <FILENAME>image16.jpg <TEXT> Document 14 - file: image16.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>15 <FILENAME>stafford_sig.jpg <TEXT> Document 15 - file: stafford_sig.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>16 <FILENAME>image03.jpg <TEXT> Document 16 - file: image03.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>17 <FILENAME>image01.jpg <TEXT> Document 17 - file: image01.jpg
</DOCUMENT> </SEC-DOCUMENT>