    <SEC-DOCUMENT>0001140361-22-009682-index.html : 20220316
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    <ACCEPTANCE-DATETIME>20220316070025
    ACCESSION NUMBER:		0001140361-22-009682
    CONFORMED SUBMISSION TYPE:	DEF 14A
    PUBLIC DOCUMENT COUNT:		17
    CONFORMED PERIOD OF REPORT:	20220428
    FILED AS OF DATE:		20220316
    DATE AS OF CHANGE:		20220316

    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:			0101

    	FILING VALUES:
    		FORM TYPE:		DEF 14A
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	000-20388
    		FILM NUMBER:		22743269

    	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
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    <TYPE>DEF 14A
    <SEQUENCE>1
    <FILENAME>edge20001891x1_def14a.htm
    <DESCRIPTION>DEF 14A
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    Document 1 - file: edge20001891x1_def14a.htm

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    <FILENAME>edge20001891x1_anthony.jpg
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    Document 2 - file: edge20001891x1_anthony.jpg

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    <FILENAME>edge20001891x1_cary.jpg
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    Document 3 - file: edge20001891x1_cary.jpg

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    <FILENAME>edge20001891x1_david.jpg
    <TEXT>
    Document 4 - file: edge20001891x1_david.jpg

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    <FILENAME>edge20001891x1_gordon.jpg
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    Document 5 - file: edge20001891x1_gordon.jpg

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    <FILENAME>edge20001891x1_kristina.jpg
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    Document 6 - file: edge20001891x1_kristina.jpg

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    <FILENAME>edge20001891x1_maria.jpg
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    Document 7 - file: edge20001891x1_maria.jpg

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    <FILENAME>edge20001891x1_nathan.jpg
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    Document 8 - file: edge20001891x1_nathan.jpg

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    <FILENAME>edge20001891x1_pc-1.jpg
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    Document 9 - file: edge20001891x1_pc-1.jpg

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    <FILENAME>edge20001891x1_pc-2.jpg
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    Document 10 - file: edge20001891x1_pc-2.jpg

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    <FILENAME>edge20001891x1_piechartx1.jpg
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    Document 11 - file: edge20001891x1_piechartx1.jpg

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    <FILENAME>edge20001891x1_skills.jpg
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    Document 12 - file: edge20001891x1_skills.jpg

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    <FILENAME>edge20001891x1_tzau.jpg
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    Document 13 - file: edge20001891x1_tzau.jpg

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    <FILENAME>edge20001891x1_william.jpg
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    Document 14 - file: edge20001891x1_william.jpg

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    <FILENAME>logo_littelfuse.jpg
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    Document 15 - file: logo_littelfuse.jpg

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    <FILENAME>logo_littelfusefooter.jpg
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    Document 16 - file: logo_littelfusefooter.jpg

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    <FILENAME>sig_ryankstafford.jpg
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    Document 17 - file: sig_ryankstafford.jpg

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