content: UNITED STATES
                        SECURITIES AND EXCHANGE COMMISSION
                              WASHINGTON, D.C. 20549
  
                                    FORM 8-K
  
  --------------------------------------------------------------------------
  
                                CURRENT REPORT
     PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934
  
        Date of Report (Date of Earliest Event Reported): January 12, 2004
  
                                  SUPERTEX, INC.
                  (Exact Name of Registrant as Specified in Charter)
  
                                   0-12718
                           (Commission File Number)
  
  California                                                  94-2328535
  (State or Other Jurisdiction of                          (I.R.S. Employer
  Incorporation or Organization)                           Identification No.)
  
  
  
                                 1235 Bordeaux Drive
                             Sunnyvale, California 94089
             (Address of principal executive offices including zip code)
  
                                    (408) 222-8888
                  (Registrant's telephone number, including area code)
  
  --------------------------------------------------------------------------
  
                                  TABLE OF CONTENTS
  
          Item 7.  Financial Statements and Exhibits
          Item 12. Disclosure of Results of Operations and Financial Condition
                  SIGNATURES
          Exhibit Index
          	EXHIBIT 99.1
  		EXHIBIT 99.2
  
  
  
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  Item 7.    Financial Statements and Exhibits.
  
  
  
  (c)    Exhibits
  
            Exhibit 99.1, Registrant's Press Release dated January 12, 2004, is
  			furnished pursuant to Item 12 of Form 8-K.
  
            Exhibit 99.2, Supplemental Financial Information
  
  --------------------------------------------------------------------------
  
  
  Item 12.    Disclosure of Results of Operations and Financial Condition.
  
  As previously announced on January 5, 2004, the Registrant issued a press
  release on January 12, 2004, and held a broadly accessible conference call
  to discuss its financial results for the third fiscal quarter ended December
  31, 2003.  The full text of that press release is attached as Exhibit 99.1 to
  this Current Report on Form 8-K.  Exhibit 99.2 also attached to this Form 8-K
  sets forth certain financial information disclosed by Registrant's management
  during the conference call that was not included in the press release concerning
  Registrant's third fiscal quarter results of operations or financial condition.
  The disclosure in this Current Report, including its exhibits, of any
  information shall not constitute an admission that such information is either
  non-public or material.
  
  The information contained in this Form 8-K shall not be deemed "filed" for
  purposes of Section 18 of the Securities Exchange Act of 1934
  (the "Exchange Act") or otherwise subject to the liabilities of that section,
  nor shall it be deemed incorporated by reference in any filing under the
  Securities Act of 1933 or the Exchange Act, except as expressly set forth by
  specific reference in such filing.
  
  --------------------------------------------------------------------------
  
                                  SIGNATURES
  
  Pursuant to the requirements of the Securities Exchange Act of 1934, the
  registrant has duly caused this report to be signed on its behalf by the
  undersigned hereunto duly authorized.
  
  
  
  
  Date: January 15, 2004                                  SUPERTEX, INC.
  
  
  
                                  By:        /s/ Henry C. Pao
                                     ---------------------------------------
                                     Henry C. Pao, Ph.D.
                                     President
                                  (Principal Executive and Financial Officer)
  
  
  
  
  --------------------------------------------------------------------------
  
                                  Exhibit Index
  
  Exhibit                   Description
  99.1         Registrant's press release dated January 12, 2004, is
               furnished pursuant to Item 12 of Form 8-K.
  
  99.2	     Supplemental Financial Information
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metadata_filer: {"company-data": {"conformed-name": "SUPERTEX INC", "cik": "0000730000", "assigned-sic": "3674", "irs-number": "942328535", "state-of-incorporation": "CA", "fiscal-year-end": "0331"}, "filing-values": {"form-type": "8-K", "act": "34", "file-number": "000-12718", "film-number": "04527851"}, "business-address": {"street1": "1235 BORDEAUX DR", "city": "SUNNYVALE", "state": "CA", "zip": "94089", "phone": "4087440100"}, "mail-address": {"street1": "1235 BORDEAUX DR", "city": "SUNNYVALE", "state": "CA", "zip": "94089"}}
text: UNITED STATES
                        SECURITIES AND EXCHANGE COMMISSION
                              WASHINGTON, D.C. 20549
  
                                    FORM 8-K
  
  --------------------------------------------------------------------------
  
                                CURRENT REPORT
     PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934
  
        Date of Report (Date of Earliest Event Reported): January 12, 2004
  
                                  SUPERTEX, INC.
                  (Exact Name of Registrant as Specified in Charter)
  
                                   0-12718
                           (Commission File Number)
  
  California                                                  94-2328535
  (State or Other Jurisdiction of                          (I.R.S. Employer
  Incorporation or Organization)                           Identification No.)
  
                                 1235 Bordeaux Drive
                             Sunnyvale, California 94089
             (Address of principal executive offices including zip code)
  
                                    (408) 222-8888
                  (Registrant's telephone number, including area code)
  
  --------------------------------------------------------------------------
  
                                  TABLE OF CONTENTS
  
          Item 7.  Financial Statements and Exhibits
          Item 12. Disclosure of Results of Operations and Financial Condition
                  SIGNATURES
          Exhibit Index
          	EXHIBIT 99.1
  		EXHIBIT 99.2
  
  --------------------------------------------------------------------------
  Item 7.    Financial Statements and Exhibits.
  
  (c)    Exhibits
  
            Exhibit 99.1, Registrant's Press Release dated January 12, 2004, is
  			furnished pursuant to Item 12 of Form 8-K.
  
            Exhibit 99.2, Supplemental Financial Information
  
  --------------------------------------------------------------------------
  
  Item 12.    Disclosure of Results of Operations and Financial Condition.
  
  As previously announced on January 5, 2004, the Registrant issued a press
  release on January 12, 2004, and held a broadly accessible conference call
  to discuss its financial results for the third fiscal quarter ended December
  31, 2003.  The full text of that press release is attached as Exhibit 99.1 to
  this Current Report on Form 8-K.  Exhibit 99.2 also attached to this Form 8-K
  sets forth certain financial information disclosed by Registrant's management
  during the conference call that was not included in the press release concerning
  Registrant's third fiscal quarter results of operations or financial condition.
  The disclosure in this Current Report, including its exhibits, of any
  information shall not constitute an admission that such information is either
  non-public or material.
  
  The information contained in this Form 8-K shall not be deemed "filed" for
  purposes of Section 18 of the Securities Exchange Act of 1934
  (the "Exchange Act") or otherwise subject to the liabilities of that section,
  nor shall it be deemed incorporated by reference in any filing under the
  Securities Act of 1933 or the Exchange Act, except as expressly set forth by
  specific reference in such filing.
  
  --------------------------------------------------------------------------
  
                                  SIGNATURES
  
  Pursuant to the requirements of the Securities Exchange Act of 1934, the
  registrant has duly caused this report to be signed on its behalf by the
  undersigned hereunto duly authorized.
  
  Date: January 15, 2004                                  SUPERTEX, INC.
  
                                  By:        /s/ Henry C. Pao
                                     ---------------------------------------
                                     Henry C. Pao, Ph.D.
                                     President
                                  (Principal Executive and Financial Officer)
  
  --------------------------------------------------------------------------
  
                                  Exhibit Index
  
  Exhibit                   Description
  99.1         Registrant's press release dated January 12, 2004, is
               furnished pursuant to Item 12 of Form 8-K.
  
  99.2	     Supplemental Financial Information