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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
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<SEC-DOCUMENT>0001104659-03-022141.txt : 20031002
<SEC-HEADER>0001104659-03-022141.hdr.sgml : 20031002
<ACCEPTANCE-DATETIME>20031002200428
ACCESSION NUMBER:		0001104659-03-022141
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20030630
FILED AS OF DATE:		20031002

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			GREENE JAMES H JR
		CENTRAL INDEX KEY:			0001205970

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-10879
		FILM NUMBER:		03926076

	MAIL ADDRESS:	
		STREET 1:		C/O KKR
		STREET 2:		9 W 57TH ST
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10019

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			AMPHENOL CORP /DE/
		CENTRAL INDEX KEY:			0000820313
		STANDARD INDUSTRIAL CLASSIFICATION:	ELECTRONIC CONNECTORS [3678]
		IRS NUMBER:				222785165
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		358 HALL AVE
		CITY:			WALLINGFORD
		STATE:			CT
		ZIP:			06492
		BUSINESS PHONE:		2032658900
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>a4.xml
<DESCRIPTION>4
<TEXT>
<XML>
<?xml version="1.0" encoding="utf-8"?>
<ownershipDocument>
    <schemaVersion>X0201</schemaVersion>

    <documentType>4</documentType>
  <periodOfReport>2003-06-30</periodOfReport>
  <notSubjectToSection16>0</notSubjectToSection16>
    <issuer>
        <issuerCik>0000820313</issuerCik>
        <issuerName>AMPHENOL CORP /DE/</issuerName>
        <issuerTradingSymbol>APH</issuerTradingSymbol>
  </issuer>
  <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001205970</rptOwnerCik>
            <rptOwnerName>GREENE JAMES H JR</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O KKR</rptOwnerStreet1>
            <rptOwnerStreet2>9 W 57TH ST</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10019</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
            <reportingOwnerRelationship>
      <isDirector>1</isDirector>
      <isOfficer>0</isOfficer>
      <isTenPercentOwner>0</isTenPercentOwner>
      <isOther>1</isOther>
      <otherText>10% Owner;See Remarks</otherText>
    </reportingOwnerRelationship>
  </reportingOwner>
  <derivativeTable>
    <derivativeTransaction>
      <securityTitle>
        <value>Phantom Stock Units</value>
      </securityTitle>
      <conversionOrExercisePrice>
        <footnoteId id="F1"/>
      </conversionOrExercisePrice>
      <transactionDate>
        <value>2003-06-30</value>
      </transactionDate>
      <transactionCoding>
        <transactionFormType>4</transactionFormType>
        <transactionCode>A</transactionCode>
        <equitySwapInvolved>0</equitySwapInvolved>
      </transactionCoding>
      <transactionTimeliness>
        <value></value>
      </transactionTimeliness>
      <transactionAmounts>
        <transactionShares>
          <value>160.19</value>
        </transactionShares>
        <transactionPricePerShare>
          <value>46.82</value>
        </transactionPricePerShare>
        <transactionAcquiredDisposedCode>
          <value>A</value>
        </transactionAcquiredDisposedCode>
      </transactionAmounts>
      <exerciseDate>
        <footnoteId id="F2"/>
      </exerciseDate>
      <expirationDate>
        <footnoteId id="F2"/>
      </expirationDate>
      <underlyingSecurity>
        <underlyingSecurityTitle>
          <value>Class A Common Stock</value>
        </underlyingSecurityTitle>
        <underlyingSecurityShares>
          <value>160.19</value>
        </underlyingSecurityShares>
      </underlyingSecurity>
      <postTransactionAmounts>
        <sharesOwnedFollowingTransaction>
          <value>160.19</value>
        </sharesOwnedFollowingTransaction>
      </postTransactionAmounts>
      <ownershipNature>
        <directOrIndirectOwnership>
          <value>D</value>
        </directOrIndirectOwnership>
      </ownershipNature>
    </derivativeTransaction>
    <derivativeTransaction>
      <securityTitle>
        <value>Phantom Stock Units</value>
      </securityTitle>
      <conversionOrExercisePrice>
        <footnoteId id="F1"/>
      </conversionOrExercisePrice>
      <transactionDate>
        <value>2003-09-30</value>
      </transactionDate>
      <transactionCoding>
        <transactionFormType>4</transactionFormType>
        <transactionCode>A</transactionCode>
        <equitySwapInvolved>0</equitySwapInvolved>
      </transactionCoding>
      <transactionTimeliness>
        <value></value>
      </transactionTimeliness>
      <transactionAmounts>
        <transactionShares>
          <value>144.09</value>
        </transactionShares>
        <transactionPricePerShare>
          <value>52.05</value>
        </transactionPricePerShare>
        <transactionAcquiredDisposedCode>
          <value>A</value>
        </transactionAcquiredDisposedCode>
      </transactionAmounts>
      <exerciseDate>
        <footnoteId id="F2"/>
      </exerciseDate>
      <expirationDate>
        <footnoteId id="F2"/>
      </expirationDate>
      <underlyingSecurity>
        <underlyingSecurityTitle>
          <value>Class A Common Stock</value>
        </underlyingSecurityTitle>
        <underlyingSecurityShares>
          <value>144.09</value>
        </underlyingSecurityShares>
      </underlyingSecurity>
      <postTransactionAmounts>
        <sharesOwnedFollowingTransaction>
          <value>304.28</value>
        </sharesOwnedFollowingTransaction>
      </postTransactionAmounts>
      <ownershipNature>
        <directOrIndirectOwnership>
          <value>D</value>
        </directOrIndirectOwnership>
      </ownershipNature>
    </derivativeTransaction>
  </derivativeTable>
  <footnotes>
    <footnote id="F1">Phantom Stock Units convert to Class A common stock on a one-for-one basis.</footnote>
    <footnote id="F2">Under the Amphenol Corporation Directors' Compensation Plan, the Reporting Person is entitled to receive shares of Class A common stock on a one-for-one basis upon the later of the first day of the year following the Reporting Person's retirement or separation from the board of directors or six months after such event.</footnote>
  </footnotes>
  <remarks>As a member of KKR 1996 GP L.L.C., which is the sole general partner of KKR Associates 1996 L.P., which is the sole general partner of KKR 1996 Fund L.P.; as a member of Strata L.L.C., which is the sole general partner of KKR Associates (Strata) L.P., which is a general partner of KKR Partners II L.P.; and as a member of KKR-NXS L.L.C., which is the sole general partner of KKR Associates (NXS) L.P., which is the sole general partner of NXS Associates L.P., the Reporting Person may be deemed, for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Act"), to be a "ten percent beneficial owner" of shares of Class A Common Stock directly held by KKR 1996 Fund L.P., NXS Associates L.P. and KKR Partners II, L.P. However, pursuant to Rule 16a-1(a)(2) promulgated under the Act, the Reporting Person disclaims that it is the beneficial owner of such Class A Common Stock.</remarks>
  <ownerSignature>
    <signatureName>/s/ William J Janetschek, Attorney-in-Fact for Reporting Person</signatureName>
    <signatureDate>2003-10-02</signatureDate>
  </ownerSignature>
</ownershipDocument>

</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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