<SEC-DOCUMENT>0000889331-24-000125-index.html : 20240430
<SEC-HEADER>0000889331-24-000125.hdr.sgml : 20240430
<ACCEPTANCE-DATETIME>20240430170431
ACCESSION NUMBER:		0000889331-24-000125
CONFORMED SUBMISSION TYPE:	8-K
PUBLIC DOCUMENT COUNT:		41
CONFORMED PERIOD OF REPORT:	20240430
ITEM INFORMATION:		Results of Operations and Financial Condition
ITEM INFORMATION:		Regulation FD Disclosure
ITEM INFORMATION:		Financial Statements and Exhibits
FILED AS OF DATE:		20240430
DATE AS OF CHANGE:		20240430

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			LITTELFUSE INC /DE
		CENTRAL INDEX KEY:			0000889331
		STANDARD INDUSTRIAL CLASSIFICATION:	SWITCHGEAR & SWITCHBOARD APPARATUS [3613]
		ORGANIZATION NAME:           	04 Manufacturing
		IRS NUMBER:				363795742
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1228

	FILING VALUES:
		FORM TYPE:		8-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-20388
		FILM NUMBER:		24898373

	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>8-K
<SEQUENCE>1
<FILENAME>lfus-20240430.htm
<DESCRIPTION>8-K
<TEXT>
Document 1 - file: lfus-20240430.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-99.1 <SEQUENCE>2 <FILENAME>q12024earningsreleaseex991.htm <DESCRIPTION>EX-99.1 <TEXT> Document 2 - file: q12024earningsreleaseex991.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-99.2 <SEQUENCE>3 <FILENAME>q1-24slides2.htm <DESCRIPTION>EX-99.2 <TEXT> Document 3 - file: q1-24slides2.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-101.SCH <SEQUENCE>4 <FILENAME>lfus-20240430.xsd <DESCRIPTION>XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT <TEXT> Document 4 - file: lfus-20240430.xsd
</DOCUMENT> <DOCUMENT> <TYPE>EX-101.LAB <SEQUENCE>5 <FILENAME>lfus-20240430_lab.xml <DESCRIPTION>XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT <TEXT> Document 5 - file: lfus-20240430_lab.xml
</DOCUMENT> <DOCUMENT> <TYPE>EX-101.PRE <SEQUENCE>6 <FILENAME>lfus-20240430_pre.xml <DESCRIPTION>XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT <TEXT> Document 6 - file: lfus-20240430_pre.xml
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>7 <FILENAME>lfuselogo1.jpg <TEXT> Document 7 - file: lfuselogo1.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>8 <FILENAME>lfuslogo2.jpg <TEXT> Document 8 - file: lfuslogo2.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>9 <FILENAME>q1-24slides2001.jpg <TEXT> Document 9 - file: q1-24slides2001.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>10 <FILENAME>q1-24slides2002.jpg <TEXT> Document 10 - file: q1-24slides2002.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>11 <FILENAME>q1-24slides2003.jpg <TEXT> Document 11 - file: q1-24slides2003.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>12 <FILENAME>q1-24slides2004.jpg <TEXT> Document 12 - file: q1-24slides2004.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>13 <FILENAME>q1-24slides2005.jpg <TEXT> Document 13 - file: q1-24slides2005.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>14 <FILENAME>q1-24slides2006.jpg <TEXT> Document 14 - file: q1-24slides2006.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>15 <FILENAME>q1-24slides2007.jpg <TEXT> Document 15 - file: q1-24slides2007.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>16 <FILENAME>q1-24slides2008.jpg <TEXT> Document 16 - file: q1-24slides2008.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>17 <FILENAME>q1-24slides2009.jpg <TEXT> Document 17 - file: q1-24slides2009.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>18 <FILENAME>q1-24slides2010.jpg <TEXT> Document 18 - file: q1-24slides2010.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>19 <FILENAME>q1-24slides2011.jpg <TEXT> Document 19 - file: q1-24slides2011.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>20 <FILENAME>q1-24slides2012.jpg <TEXT> Document 20 - file: q1-24slides2012.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>21 <FILENAME>q1-24slides2013.jpg <TEXT> Document 21 - file: q1-24slides2013.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>22 <FILENAME>q1-24slides2014.jpg <TEXT> Document 22 - file: q1-24slides2014.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>23 <FILENAME>q1-24slides2015.jpg <TEXT> Document 23 - file: q1-24slides2015.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>24 <FILENAME>q1-24slides2016.jpg <TEXT> Document 24 - file: q1-24slides2016.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>25 <FILENAME>q1-24slides2017.jpg <TEXT> Document 25 - file: q1-24slides2017.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>26 <FILENAME>q1-24slides2018.jpg <TEXT> Document 26 - file: q1-24slides2018.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>27 <FILENAME>q1-24slides2019.jpg <TEXT> Document 27 - file: q1-24slides2019.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>28 <FILENAME>q1-24slides2020.jpg <TEXT> Document 28 - file: q1-24slides2020.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>29 <FILENAME>q1-24slides2021.jpg <TEXT> Document 29 - file: q1-24slides2021.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>30 <FILENAME>q1-24slides2022.jpg <TEXT> Document 30 - file: q1-24slides2022.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>31 <FILENAME>q1-24slides2023.jpg <TEXT> Document 31 - file: q1-24slides2023.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>32 <FILENAME>q1-24slides2024.jpg <TEXT> Document 32 - file: q1-24slides2024.jpg
</DOCUMENT> <DOCUMENT> <TYPE>XML <SEQUENCE>34 <FILENAME>R1.htm <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 34 - file: R1.htm
</DOCUMENT> <DOCUMENT> <TYPE>EXCEL <SEQUENCE>35 <FILENAME>Financial_Report.xlsx <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 35 - file: Financial_Report.xlsx
</DOCUMENT> <DOCUMENT> <TYPE>XML <SEQUENCE>36 <FILENAME>Show.js <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 36 - file: Show.js
</DOCUMENT> <DOCUMENT> <TYPE>XML <SEQUENCE>37 <FILENAME>report.css <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 37 - file: report.css
</DOCUMENT> <DOCUMENT> <TYPE>XML <SEQUENCE>39 <FILENAME>FilingSummary.xml <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 39 - file: FilingSummary.html
Document 39 - RAW XML: FilingSummary.xml
</DOCUMENT> <DOCUMENT> <TYPE>JSON <SEQUENCE>42 <FILENAME>MetaLinks.json <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 42 - file: MetaLinks.json
</DOCUMENT> <DOCUMENT> <TYPE>ZIP <SEQUENCE>43 <FILENAME>0000889331-24-000125-xbrl.zip <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 43 - file: 0000889331-24-000125-xbrl.zip
</DOCUMENT> <DOCUMENT> <TYPE>XML <SEQUENCE>45 <FILENAME>lfus-20240430_htm.xml <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 45 - file: lfus-20240430_htm.html
Document 45 - RAW XML: lfus-20240430_htm.xml
</DOCUMENT> </SEC-DOCUMENT>