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): July 14, 2003
  
                                  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 9.  Regulation FD Disclosure
  		SIGNATURES
  	Exhibit Index
  		EXHIBIT 99.1
  
  
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  Item 7.  Financial Statements and Exhibits
  
  	(c)  Exhibits
  
  		Exhibit 99.1, Registrant's Press Release dated July 14,
  2003, is furnished pursuant to Item 12 of Form 8-K.
  
  Item 9. Regulation FD Disclosure (Information furnished pursuant to Item 12,
   "Disclosure of Results of Operations and Financial Condition").
  
  On July 14, 2003, Registrant announced via press release its preliminary
  results for its first fiscal quarter ended June 28, 2003.
  The full text of the press release issued in connection with that
  announcement is attached as Exhibit 99.1 to this Current Report on Form 8-K.
  
  In accordance with the procedural guidance in SEC Release No. 33-8216, the
  information in this Form 8-K and its Exhibit 99.1 is being furnished under
  "Item 9. Regulation FD Disclosure" rather than under "Item 12. "Disclosure
  of Results of Operations and Financial Condition".  The information 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: July 14, 2003 					SUPERTEX, INC.
  
  
                                  By:        /s/ Henry C. Pao
                                     ---------------------------------------
                                     Henry C. Pao, Ph.D.
                                     President
                                  (Principal Executive and Financial Officer)
  
  
  
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                                  Exhibit Index
  
  Exhibit                   Description
  99.1                      Registrant's press release dated July 14, 2003, is
                            furnished pursuant to Item 12 of Form 8-K.
metadata_documents: [{"type": "8-K", "sequence": "1", "filename": "supx8kfinal.txt", "description": "FORM 8-K", "secsgml_size_bytes": 3707}]
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": "03785727"}, "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): July 14, 2003
  
                                  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 9.  Regulation FD Disclosure
  		SIGNATURES
  	Exhibit Index
  		EXHIBIT 99.1
  
  --------------------------------------------------------------------------
  Item 7.  Financial Statements and Exhibits
  
  	(c)  Exhibits
  
  		Exhibit 99.1, Registrant's Press Release dated July 14,
  2003, is furnished pursuant to Item 12 of Form 8-K.
  
  Item 9. Regulation FD Disclosure (Information furnished pursuant to Item 12,
   "Disclosure of Results of Operations and Financial Condition").
  
  On July 14, 2003, Registrant announced via press release its preliminary
  results for its first fiscal quarter ended June 28, 2003.
  The full text of the press release issued in connection with that
  announcement is attached as Exhibit 99.1 to this Current Report on Form 8-K.
  
  In accordance with the procedural guidance in SEC Release No. 33-8216, the
  information in this Form 8-K and its Exhibit 99.1 is being furnished under
  "Item 9. Regulation FD Disclosure" rather than under "Item 12. "Disclosure
  of Results of Operations and Financial Condition".  The information 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: July 14, 2003 					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 July 14, 2003, is
                            furnished pursuant to Item 12 of Form 8-K.