<SEC-DOCUMENT>0000889331-21-000021-index.html : 20210312
<SEC-HEADER>0000889331-21-000021.hdr.sgml : 20210312
<ACCEPTANCE-DATETIME>20210312111003
ACCESSION NUMBER:		0000889331-21-000021
CONFORMED SUBMISSION TYPE:	DEF 14A
PUBLIC DOCUMENT COUNT:		14
CONFORMED PERIOD OF REPORT:	20201231
FILED AS OF DATE:		20210312
DATE AS OF CHANGE:		20210312

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:			1226

	FILING VALUES:
		FORM TYPE:		DEF 14A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-20388
		FILM NUMBER:		21735954

	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>a2021proxystatementdef14a.htm
<DESCRIPTION>DEF 14A 2021 PROXY STATEMENT
<TEXT>
Document 1 - file: a2021proxystatementdef14a.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>daveheinzmann1a.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 2 - file: daveheinzmann1a.jpg

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<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>green1a.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 3 - file: green1a.jpg

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<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>image051a.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 4 - file: image051a.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>5
<FILENAME>image061a.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 5 - file: image061a.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>6
<FILENAME>image071a.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 6 - file: image071a.jpg

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<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>7
<FILENAME>image091a.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 7 - file: image091a.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>8
<FILENAME>image111a.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 8 - file: image111a.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>9
<FILENAME>image131a.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 9 - file: image131a.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>10
<FILENAME>kristinacernigliabw002a011a.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 10 - file: kristinacernigliabw002a011a.jpg

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<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>11
<FILENAME>lflogo_taglinexblackjpg3.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 11 - file: lflogo_taglinexblackjpg3.jpg

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<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>12
<FILENAME>proxycard2021_pagex11.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 12 - file: proxycard2021_pagex11.jpg

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<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>13
<FILENAME>proxycard2021_pagex21.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 13 - file: proxycard2021_pagex21.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>14
<FILENAME>stafford_sig1a.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 14 - file: stafford_sig1a.jpg

</DOCUMENT>
</SEC-DOCUMENT>