<SEC-DOCUMENT>0000889331-21-000023-index.html : 20210312
<SEC-HEADER>0000889331-21-000023.hdr.sgml : 20210312
<ACCEPTANCE-DATETIME>20210312111235
ACCESSION NUMBER:		0000889331-21-000023
CONFORMED SUBMISSION TYPE:	DEFA14A
PUBLIC DOCUMENT COUNT:		4
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:		DEFA14A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-20388
		FILM NUMBER:		21735962

	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>DEFA14A
<SEQUENCE>1
<FILENAME>a2021proxynotice.htm
<DESCRIPTION>DEFA14A PROXY NOTICE
<TEXT>
Document 1 - file: a2021proxynotice.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>proxynotice2021_pagex11.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 2 - file: proxynotice2021_pagex11.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>proxynotice2021_pagex21.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 3 - file: proxynotice2021_pagex21.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>proxynotice2021_pagex31.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 4 - file: proxynotice2021_pagex31.jpg

</DOCUMENT>
</SEC-DOCUMENT>