<SEC-DOCUMENT>0001965837-23-000009.txt : 20230508
<SEC-HEADER>0001965837-23-000009.hdr.sgml : 20230508
<ACCEPTANCE-DATETIME>20230508163527
ACCESSION NUMBER:		0001965837-23-000009
CONFORMED SUBMISSION TYPE:	144
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20230508
DATE AS OF CHANGE:		20230508

SUBJECT COMPANY:	

	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:			1230

	FILING VALUES:
		FORM TYPE:		144
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	000-20388
		FILM NUMBER:		23898305

	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

REPORTING-OWNER:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Nayar Deepak
		CENTRAL INDEX KEY:			0001526287

	FILING VALUES:
		FORM TYPE:		144

	MAIL ADDRESS:	
		STREET 1:		8755 WEST HIGGINS ROAD
		STREET 2:		SUITE 500
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60631

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Deepak Nayar
		DATE OF NAME CHANGE:	20110720
</SEC-HEADER>
<DOCUMENT>
<TYPE>144
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
<XML>
<?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/ownership" xmlns:com="http://www.sec.gov/edgar/common">
  <headerData>
    <submissionType>144</submissionType>
    <filerInfo>
      <filer>
        <filerCredentials>
          <cik>0001526287</cik>
          <ccc>XXXXXXXX</ccc>
        </filerCredentials>
      </filer>
      <liveTestFlag>LIVE</liveTestFlag>



    </filerInfo>
  </headerData>
  <formData>
    <issuerInfo>
      <issuerCik>0000889331</issuerCik>
      <issuerName>LITTELFUSE INC /DE</issuerName>
      <secFileNumber>000-20388</secFileNumber>
      <issuerAddress>
        <com:street1>8755 WEST HIGGINS ROAD</com:street1>
        <com:city>CHICAGO</com:city>
        <com:stateOrCountry>IL</com:stateOrCountry>
        <com:zipCode>60631</com:zipCode>
      </issuerAddress>
      <issuerContactPhone>773-628-1000</issuerContactPhone>
      <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Nayar Deepak</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
      <relationshipsToIssuer>
        <relationshipToIssuer>Officer</relationshipToIssuer>
      </relationshipsToIssuer>
    </issuerInfo>
    <securitiesInformation>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <brokerOrMarketmakerDetails>
        <name>Merrill Lynch</name>
        <address>
          <com:street1>8890 Lyra Drive</com:street1>
          <com:street2>5th Floor</com:street2>
          <com:city>Columbus</com:city>
          <com:stateOrCountry>OH</com:stateOrCountry>
          <com:zipCode>43240</com:zipCode>
        </address>
      </brokerOrMarketmakerDetails>
      <noOfUnitsSold>6792</noOfUnitsSold>
      <aggregateMarketValue>1762811.00</aggregateMarketValue>
      <noOfUnitsOutstanding>24831600</noOfUnitsOutstanding>
      <approxSaleDate>05/08/2023</approxSaleDate>
      <securitiesExchangeName>nasdaq</securitiesExchangeName>
    </securitiesInformation>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>04/23/2020</acquiredDate>
      <natureOfAcquisitionTransaction>Stock Option Exercise</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Littlefuse, Inc</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>3573</amountOfSecuritiesAcquired>
      <paymentDate>05/08/2023</paymentDate>
      <natureOfPayment>cash</natureOfPayment>
    </securitiesToBeSold>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>04/22/2023</acquiredDate>
      <natureOfAcquisitionTransaction>Restricted Stock Lapse</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Littlefuse, Inc</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>323</amountOfSecuritiesAcquired>
      <paymentDate>04/22/2023</paymentDate>
      <natureOfPayment>n/a</natureOfPayment>
    </securitiesToBeSold>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>04/23/2023</acquiredDate>
      <natureOfAcquisitionTransaction>Restricted Stock Lapse</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Littlefuse, Inc</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>2511</amountOfSecuritiesAcquired>
      <paymentDate>04/23/2023</paymentDate>
      <natureOfPayment>n/a</natureOfPayment>
    </securitiesToBeSold>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>04/28/2023</acquiredDate>
      <natureOfAcquisitionTransaction>Restricted Stock Lapse</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Littlefuse, Inc</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>385</amountOfSecuritiesAcquired>
      <paymentDate>04/28/2023</paymentDate>
      <natureOfPayment>n/a</natureOfPayment>
    </securitiesToBeSold>
    <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
    <noticeSignature>
      <noticeDate>05/08/2023</noticeDate>
      <signature>Deepak Nayar</signature>
    </noticeSignature>
  </formData>
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</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
