As filed with the Securities and Exchange Commission on September 29, 1999
                                                Registration No. 33-_____


     SECURITIES AND EXCHANGE COMMISSION
          Washington, D.C.  20549


                  Form S-8
           REGISTRATION STATEMENT
                   UNDER
         THE SECURITIES ACT OF 1933



               SUPERTEX, INC.
(Exact name of registrant as specified in its charter)

       CALIFORNIA     94-2328535
(State of incorporation)(IRS Employer Identification No.)
            1235 Bordeaux Drive
     Sunnyvale, California  94088-3607
  (Address of principal executive offices)


           1991 Stock Option Plan
          (Full Title of the Plan)

                HENRY C. PAO
                 President
               SUPERTEX, INC.
            1235 Bordeaux Drive
      Sunnyvale, California 94088-3607
  (Name and address of agent for service)

               (408) 744-0100
(Telephone number, including area code, of agent for service)


                 Copies to:
         THOMAS C. DEFILIPPS, ESQ.
     WILSON, SONSINI, GOODRICH & ROSATI, LP
          Professional Corporation
             650 Page Mill Road
      Palo Alto, California 94304-1050





                       CALCULATION OF REGISTRATION FEE



Title of           Amount to be       Proposed        Proposed Maximum    Amount of
Securities to      Registered         Maximum         Aggregate           Registration
be Registered                         Offering Price  Offering Price      Fee
                                      Per Share


                                                              

Shares             900,000            $15.1875<F1>    $13,668,750.00      $3,799.91
Available for
Future Option
Grant

<FN>
<F1>
Estimated solely for the purpose of calculating the amount of registration fee
on the basis of the average of the high and low price reported in the Nasdaq
National Market System on September 28, 1999.
</FN>



                  PART II

  INFORMATION REQUIRED IN THE REGISTRATION STATEMENT


Item 3.  Information Incorporated by Reference.

  There are hereby incorporated by reference in this registration statement
the following documents and information heretofore filed with the Securities
and Exchange Commission:

  1.   The Company's Quarterly Report on Form 10-Q for the fiscal
quarter ended June 30, 1999, filed pursuant to Section 13 of the Securities
Exchange Act of 1934 (the "Exchange Act").

  2.   The Company's Annual Report on Form 10-K for the fiscal year
ended March 31, 1999, filed pursuant to Section 13 of the Exchange Act.

  3.   The Registration Statement on Form S-8, filed on November 1,
1991, pursuant to Section 5 of the Securities Act of 1933, as amended.

  4.   The Registration Statement on Form S-8, filed on September 1,
1995, pursuant to Section 5 of the Securities Act of 1933, as amended.

  All documents filed by the Company pursuant to Sections 13(a), 13(c), 14
and 15(d) of the Exchange Act, after the date of this registration statement and
prior to the filing of a post-effective amendment which indicates that all
securities offered have been sold or which deregisters all securities then
remaining unsold, shall be deemed to be incorporated by reference in this regis-
tration statement and to be part hereof from the date of filing such documents.


Item 4.  Description of Securities.

  Not applicable.


Item 5.  Interests of Named Experts and Counsel.

  Not applicable.


Item 6.  Indemnification of Directors and Officers.

  Section 317 of the California Corporations Code authorizes a court to
award, or a corporation's Board of Directors to grant, indemnity to directors
and officers in terms sufficiently broad to permit such indemnification under
certain circumstances for liabilities (including reimbursement for expenses
incurred) arising under the Securities Act.  The Company's Articles of
Incorporation, as amended, limit the liability of the Company's directors for
monetary damages arising from breach of their fiduciary duty, except to the
extent otherwise required by the California Corporations Code.  Article VI of
the Company's Bylaws provides for indemnification of the Company's directors,
officers, employees, and other agents to the maximum extent permitted by the
California Corporations Code.


Item 7.  Exemption from Registration Claimed.

  Not applicable.


Item 8.  Exhibits.

    Exhibit
     Number

        4.1        1991 Stock Option Plan, as amended and Form of
                   Stock Option Agreement
        5.1        Opinion of Wilson, Sonsini, Goodrich & Rosati, P.C.
       23.1        Consent of PricewaterhouseCoopers LLP
                   Independent Accountants
       23.2        Consent of Wilson, Sonsini, Goodrich & Rosati,
                   P.C. (contained in Exhibit 5.1)
       24.1        Power of Attorney (See Page 6)


Item 9.  Undertakings.

       (a)  The undersigned registrant hereby undertakes:

            (1)  To file, during any period in which offers or sales are
being made, a post-effective amendment to this Registration Statement:

                        (i)     To include any prospectus required by
            Section 10(a)(3) of the Securities Act of 1933;

                       (ii)     To reflect in the prospectus any facts or events
            arising after the effective date of the Registration Statement (or
            the most recent post-effective amendment thereof) which,
            individually or in the aggregate, represent a fundamental change
            in the information set forth in the Registration Statement;

                      (iii)     To include any material information with
            respect to the plan of distribution not previously disclosed in the
            Registration Statement or any material change to such
            information in the Registration Statement;

provided, however, that paragraphs (a)(1)(i) and (a)(1)(ii) do not apply if the
information required to be included in a post-effective amendment by those
paragraphs is contained in the periodic reports filed by the registrant pursuant
to Section 13 or 15(d) of the Securities Exchange Act of 1934 that are
incorporated by reference in the registration statement.

            (2)  That, for the purpose of determining any liability under
the Securities Act, each such post-effective amendment shall be deemed to be a
new registration statement relating to the securities offered therein, and the
offering of such securities at that time shall be deemed to be the initial bona
fide offering thereof.

            (3)  To remove from registration by means of a post-effective
amendment any of the securities being registered which remain unsold
at the termination of the offering.

       (b)  The undersigned registrant hereby undertakes that, for purposes
of determining any liability under the Securities Act, each filing of the
registrant's annual report pursuant to Section 13(a) or Section 15(d) of the
Exchange Act (and, where applicable, each filing of an employee benefit plan's
annual report pursuant to Section 15(d) of the Exchange Act) that is
incorporated by reference in the registration statement shall be deemed to be a
new registration statement relating to the securities offered therein, and the
offering of such securities at that time shall be deemed to be the initial bona
fide offering thereof.

       (c)  Insofar as indemnification for liabilities arising under the
Securities Act may be permitted to directors, officers and controlling persons
of the registrant pursuant to the foregoing provisions, or otherwise, the
registrant has been advised that in the opinion of the Securities and Exchange
Commission such indemnification is against public policy as expressed in the
Securities Act and is, therefore, unenforceable.  In the event that a claim for
indemnification against such liabilities (other than the payment by the
registrant of expenses incurred or paid by a director, officer or controlling
person of the registrant in the successful defense of any action, suit or
proceeding) is asserted by such director, officer or controlling person in
connection with the securities being registered, the registrant will, unless
in the opinion of its counsel the matter has been settled by controlling
precedent, submit to a court of appropriate jurisdiction the question whether
such indemnification by it is against public policy as expressed in the
Securities Act and will be governed by the final adjudication of such issue.


                       SIGNATURES


The Company

       Pursuant to the requirements of the Securities Act of 1933, the
registrant certifies that it has reasonable grounds to believe that it meets
all of the requirements for filing on Form S-8 and has duly caused this
registration statement to be signed on its behalf by the undersigned,
thereunto duly authorized, in the City of Sunnyvale, State of California,
on September 24, 1999.


                           SUPERTEX, INC.


                           By:  Henry C. Pao
                                Henry C. Pao, President




             POWER OF ATTORNEY


       KNOW ALL PERSONS BY THESE PRESENTS, that each person
whose signature appears below constitutes and appoints Richard Siegel his
attorney-in-fact, with the power of substitution, for him in any and all
capacities, to sign any amendments to this Registration Statement on Form S-8,
and to file the same, with exhibits thereto and other documents in connection
therewith, with the Securities and Exchange Commission, hereby ratifying and
confirming all that said attorney-in-fact, or his substitute, may do or cause
to be done by virtue hereof.


       Pursuant to the requirements of the Securities Act of 1933, this
registration statement has been signed by the following persons in the
capacities and on the dates indicated.


SIGNATURE                      TITLE                                DATE

Henry C. Pao       President, Chief Executive Officer
(Henry C. Pao)     (Principal)Executive Officer), Chief       September 23, 1999
                   Financial Officer(Principal Financial
                   Officer) and Director

Jacqueline Limary  Controller                                 September 23, 1999
(Jacqueline Limary)(Principal Accounting Officer)


Benedict C. K. Choy   Senior Vice President, Secretary
(Benedict C. K. Choy) and Director                            September 23, 1999



Richard Siegel     Executive Vice President, and Director     September 23, 1999
(Richard Siegel)


Frank Pao          Director                                   September 23, 1999
(Frank Pao)


Yunni Pao          Director                                   September 23, 1999
(Yunni Pao)


                               CONSENT OF COUNSEL



       The consent of Wilson, Sonsini, Goodrich & Rosati, Professional
Corporation, is contained in its opinion filed as Exhibit 5.1 to the
Registration
Statement.


                               INDEX TO EXHIBITS


Exhibit Number               Description                   Sequentially
                                                           Numbered Page

4.1              1991 Stock Option Plan and Form of Stock
                 Option Agreement

5.1              Opinion of Wilson, Sonsini, Goodrich &
                 Rosati, P.C.

23.1             Consent of PricewaterhouseCoopers LLP,
                 Independent Accountants

23.2             Consent of Wilson, Sonsini, Goodrich &     Contained in
                 Rosati, P.C.                               Exhibit 5.1

24.1             Power of Attorney                          Page 6 of
                                                            Registration
                                                            Statement





[FN]
____________________

*      Incorporated by reference from exhibits to the Company's Annual Report
       on Form 10-K filed on June 16, 1999.
</FN>