As filed with the Securities and Exchange Commission on September 18, 2001
Registration No. 33-____

UNITED STATES
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 or other jurisdiction of (I.R.S. Employer
incorporation or organization) Identification No.)

1235 Bordeaux Drive
Sunnyvale, CA 94089
(Address of principal
executive offices) (Zip Code)

SUPERTEX, INC. 2001 STOCK OPTION PLAN
(Full title of the plan)

Copy to:
HENRY C. PAO STEPHEN M. WURZBURG, ESQ.
President LONNIE GOLDMAN, ESQ.
Supertex, Inc. Pillsbury Winthrop LLP
1235 Bordeaux Drive 2550 Hanover Street
Sunnyvale, CA 94089 Palo Alto, CA 94304
(408) 744-0100 (650) 233-4500

(Name, address and telephone
number of agent for service)

CALCULATION OF REGISTRATION FEE

Proposed Proposed
Title of Securities Amount to Maximum Offering Maximum Aggregate Amount of
To Be Registered(1) Be Registered Price Per Share(2) Offering Price(3) Registration Fee (4)

Common Stock 2,000,000 shares $13.50 $27,000,000 $6,750.00

(1) The securities to be registered include options and rights to acquire
Common Stock.
(2) Pursuant to Rule 457(h)(i) and Rule 457(c) under the Securities Act of
1933, as amended (the "Securities Act"), the Proposed Maximum Offering Price
Per Share has been computed on the basis of the average of the high and low
prices of the Common Stock as reported on the Nasdaq National Market on
September 10, 2001.
(3) Amount To Be Registered multiplied by the Proposed Maximum Offering Price
Per Share.
(4) Pursuant to Rule 457(h) and Section 6(b) under the Securities Act, the
Proposed Maximum Aggregate Offering Price multiplied by the rate equal to
$250 per $1,000,000.

____________________

The Registration Statement shall become effective upon filing in accordance
with Rule 462 under the Securities Act of 1933.

PART I

Item1. Plan Information.*

Item2. Registrant Information and Employee Plan Annual Information.*

* Information required by Part I to be contained in the Section 10(a)
prospectus is omitted from this Registration Statement in accordance with
Rule 428 under the Securities Act of 1933 (the "Securities Act") and the Note
to Part I of Form S-8.

PART II

INFORMATION REQUIRED IN THE REGISTRATION STATEMENT

Item3. Incorporation of Documents by Reference.

The following documents filed by the Registrant with the Securities and
Exchange Commission are hereby incorporated by reference in this Registration
Statement:

(a) Registrant's Annual Report on Form 10-K (File No. 0-12718) for the fiscal
year ended March 31, 2001.
(b) Registrant's Quarterly Report on Form 10-Q for the quarter ended June 30,
2001.
(c) The description of Registrant's Common Stock contained in Registrant's
registration statement on Form 8-A filed with the Securities and Exchange
Commission on July 27, 1984, as amended September 24, 1984, including any
other amendment or report filed for the purpose of updating such description.

In addition, all documents subsequently filed by Registrant pursuant to
Sections 13(a), 13(c), 14 and 15(d) of the Securities Exchange Act of 1934,
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
registration statement and to be a part hereof from the date of filing of
such documents.

Item4. Description of Securities.
Not applicable.

Item5. Interests of Named Experts and Counsel.
Not applicable.

Item6. 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,
officers, employees and other agents of the corporation ("Agents") in terms
sufficiently broad to permit such indemnification under certain circumstances
for liabilities (including reimbursement for expenses incurred) arising under
the Securities Act of 1933, as amended (the "Act").

Article V of the Company's Restated Articles of Incorporation (Exhibit 3.1 of
the Company's Registration Statement on Form S-1, File No. 2-86898, filed on
October 3, 1983, as amended), as amended (pursuant to the Certificates of
Amendment of Articles of Incorporation, filed on April 16, 1981, September
30, 1983 and October 28, 1988, respectively) authorizes the Company to
indemnify its Agents, through bylaw provisions, agreements, votes of
shareholders or disinterested directors or otherwise, in excess of the
indemnification otherwise permitted by Section 317 of the California
Corporations Code, subject to the applicable limits set forth in Section 204
of the California Corporations Code with respect to actions for breach of
duty to the Company and its shareholders. Article VI of the Company's Bylaws
provides for mandatory indemnification of each director of the Company to
the maximum extent permitted by law.

The Company maintains a directors and officers liability insurance policy
that indemnifies the Company's directors and officers against certain losses
in connection with claims made against them for certain wrongful acts.

Item7. Exemption From Registration Claimed.
Not applicable.

Item8. Exhibits.
See Index to Exhibits, which list of exhibits is incorporated herein by
reference.

Item9. 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 periodic reports filed
by the Registrant pursuant to Section 13 or Section 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 of 1933, 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 of 1933, each filing of
the Registrant's annual report pursuant to Section 13(a) or Section 15(d) of
the Securities Exchange Act of 1934 (and, where applicable, each filing of an
employee benefit plan's annual report pursuant to Section 15(d) of the
Securities Exchange Act of 1934) 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 of 1933 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 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 Act and will be governed by the final adjudication of such
issue.

SIGNATURES
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 September14,
2001.

SUPERTEX, INC.

By /s/ HENRY C. PAO
Henry C. Pao, President

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

Name Title Date
/s/ HENRY C. PAO President (Principal Executive September 14, 2001
Henry C. Pao Officer & Principal Financial
Officer) and Director

/s/ JACQUELINE LIMARY Controller September 14, 2001
Jacqueline Limary

/s/ BENEDICT C.K. CHOY Senior Vice President, September 14, 2001
Benedict C.K. Choy Secretary and Director

/s/ RICHARD SIEGEL Executive Vice President September 14, 2001
Richard Siegel and Director

/s/ MARK LOVELESS Director September 14, 2001
Mark Loveless

/s/ ELLIOTT SCHLAM Director September 14, 2001
Elliott Schlam

/s/ MILTON FENG Director September 14, 2001
Milton Feng

By:

/s/ JACQUELINE LIMARY
Jacqueline Limary
Attorney-in-Fact

Index to Exhibits

Exhibit Number Exhibit

4.1 Supertex, Inc. 2001 Stock Option Plan (incorporated by
reference to Appendix B of the Registrant's amended Proxy
Statement filed on August 7, 2001 (File No. 000-12718))

4.2 Supertex, Inc. Stock Option Agreement

5.1 Opinion of Pillsbury Winthrop LLP

23.1 Consent of PricewaterhouseCoopers LLP, Independent
Accountants

23.2 Consent of Pillsbury Winthrop LLP (included in Exhibit 5.1)

24.1 Power of Attorney

EXHIBIT 4.2

SUPERTEX, INC.
STOCK OPTION AGREEMENT

1. Grant of Option. Supertex, Inc., a California corporation (the "Company"),
hereby grants to the Optionee (the "Optionee") named in the Notice of
Grant (part of, and attached as Exhibit A to, this Option Agreement), an
option (the "Option") to purchase a number of shares of Stock, as set
forth in the Notice of Grant, at the exercise price per share set forth in
the Notice of Grant (the "Exercise Price"), subject to the terms and
conditions of the 2001 Stock Option Plan (the "Plan") adopted by the
Company, which is incorporated herein by reference, including, without
limitation, the Plan's provisions regarding the treatment of stock splits
and recapitalizations. In the event of a conflict between the terms and
conditions of the Plan and the terms and conditions of this Option
Agreement, the terms and conditions of the Plan shall prevail. Unless
otherwise defined herein, the terms defined in the Plan shall have the
same defined meanings in this Option Agreement.

If designated in the Notice of Grant as an Incentive Stock Option, this
Option is intended to qualify as an Incentive Stock Option under Section
422 of the Code.

2. Exercise of Option.

(a) Right to Exercise. This Option is exercisable during its term, as to
vested Stock only, in accordance with the Vesting Schedule set out in the
Notice of Grant and the applicable provisions of the Plan and this Option
Agreement. In the event of Optionee's death, disability or other termination
of Optionee's employment or consulting relationship, the exercisability of
the Option is governed by the applicable provisions of the Plan and this
Option Agreement.

(b) Method of Exercise. This Option is exercisable by delivery of an
exercise notice, in the form attached as Exhibit B (the "Exercise Notice"),
which shall state the election to exercise the Option, the number of shares
of Stock in respect of which the Option is being exercised (the "Exercised
Stock"), and such other representations and agreements as to the holder's
investment intent with respect to the Exercised Stock as may be required by
the Company pursuant to the provisions of the Plan. The Exercise Notice
shall be signed by the Optionee and, if the Optionee is married, also by the
Optionee's spouse, and shall be delivered in person or by certified mail to
the Secretary of the Company. The Exercise Notice shall be accompanied by
payment of the aggregate Exercise Price as to all Exercised Stock. This
Option shall be deemed to be exercised upon receipt by the Company of such
fully executed Exercise Notice accompanied by such aggregate Exercise Price.

No Stock shall be issued pursuant to the exercise of this Option unless such
issuance and exercise complies with all relevant provisions of law and the
requirements of any stock exchange upon which the Stock are then listed.
Assuming such compliance, for income tax purposes the Exercised Stock shall
be considered transferred to the Optionee on the date the Option is exercised
with respect to such Exercised Stock.

(1) Definitions:

(i) "Consultant" means any person, including an advisor, engaged by the
Company or a Parent or Subsidiary to render services and who is
compensated for such services, and any Director, whether compensated for
such services or not.

(ii) "Continuous Status as an Employee or Consultant" means the
employment or consulting relationship is not interrupted or terminated by
the Company, any Parent or Subsidiary. Continuous Status as an Employee
or Consultant shall not be considered interrupted in the case of: (A)
any leave of absence approved by the Board, including sick leave,
military leave, or any other personal leave; provided, however, that for
purposes of Incentive Stock Options, any such leave may not exceed ninety
(90) days, unless reemployment upon the expiration of such leave is
guaranteed by contract (including certain Company policies) or statute;
or (B) transfers between locations of the Company or between the Company,
its Parent, its Subsidiaries or its successor.

(iii) "Director" means a member of the Board.

(iv) "Disability" means total and permanent disability as defined in
Section 22(e)(3) of the Code.

(v) "Employee" means any person, including officers and directors,
employed by the Company or any Parent or Subsidiary of the Company.
Neither service as a Director nor payment of a director's fee by the
Company shall be sufficient to constitute "employment" by the Company.

(vi) "Parent" means a "parent corporation", whether now or hereafter
existing, as defined in Section 424(e) of the Code.

(2) Termination of Employment or Consulting Relationship. In the event an
Optionee's Continuous Status as an Employee or Consultant terminates (other
than upon the Optionee's death or Disability), the Optionee must exercise his
or her Option not later than thirty (30) days after termination, and only to
the extent that the Optionee was entitled to exercise it at the date of
termination (but in no event later than the expiration of the term of such
Option as set forth in the Notice of Grant). If, at the date of termination,
the Optionee is not entitled to exercise his or her entire Option, the Stock
covered by the unexercisable portion of the Option shall revert to the Plan.
If, after termination, the Optionee does not exercise his or her Option
within the time specified herein, the Option shall terminate, and the Stock
covered by such Option shall revert to the Plan.

(3) Disability of Optionee. In the event an Optionee's Continuous Status as
an Employee or Consultant terminates as a result of the Optionee's
Disability, the Optionee may exercise his or her Option, but only within
twelve (12) months from the date of such termination, and only to the extent
that the Optionee was entitled to exercise it at the date of such termination
(but in no event later than the expiration of the term of such Option as set
forth in the Notice of Grant). If, at the date of termination, the Optionee
is not entitled to exercise his or her entire Option, the Stock covered by
the unexercisable portion of the Option shall revert to the Plan. If, after
termination, the Optionee does not exercise his or her Option within the time
specified herein, the Option shall terminate, and the Stock covered by such
Option shall revert to the Plan.

(4) Death of Optionee. In the event of the death of an Optionee, the Option
may be exercised, at any time within twelve (12) months following the date of
death (but in no event later than the expiration of the term of such Option
as set forth in the Notice of Grant), by the Optionee's estate or by a person
who acquired the right to exercise the Option by bequest or inheritance, but
only to the extent the Optionee was entitled to exercise the Option at the
date of death. If, at the time of death, the Optionee was not entitled to
exercise his or her entire Option, the Stock covered by the unexercisable
portion of the Option shall revert to the Plan. If, after death, the
Optionee's estate or a person who acquired the right to exercise the Option
by bequest or inheritance does not exercise the Option within the time
specified herein, the Option shall terminate, and the Stock covered by such
Option shall revert to the Plan.

3. Method of Payment. Payment of the aggregate Exercise Price shall be by
any of the following, or a combination thereof, at the election of the
Optionee:

(a) cash;

(b) check; or

(c) Delivery of Stock Certificate of the Company's own Stock which (i) in the
case of Stock acquired upon exercise of an option, have been owned by the
Optionee for more than six months on the date of surrender, or were not
acquired directly or indirectly from the Company and (ii) have a Fair Market
Value on the date of surrender equal to the aggregate exercise price of the
Stock as to which said Option shall be exercised.

4. Non-Transferability of Option. This Option may not be transferred in any
manner otherwise than by will or by the laws of descent or distribution or
pursuant to a qualified domestic relations order and may be exercised during
the lifetime of Optionee only by the Optionee. The terms of the Plan and
this Option Agreement shall be binding upon the executors, administrators,
heirs, successors and assigns of the Optionee.

5. Term of Option. This Option may be exercised only within the term set out
in the Notice of Grant, and may be exercised during such term only in
accordance with the Plan and the terms of this Option Agreement.

6. Tax Consequences. Some of the federal and California tax consequences
relating to this Option, as of the date of this Option, are set forth below.
THIS SUMMARY IS NECESSARILY INCOMPLETE, AND THE TAX LAWS AND REGULATIONS ARE
SUBJECT TO CHANGE. A STOCK-FOR-STOCK EXERCISE MAY RESULT IN DIFFERENT TAX
IMPLICATIONS THAN THOSE DESCRIBED BELOW. THE OPTIONEE SHOULD CONSULT A
PERSONAL TAX ADVISER BEFORE EXERCISING THIS OPTION OR DISPOSING OF THE STOCK.
THE OPTIONEE ACKNOWLEDGES THAT HE OR SHE IS NOT RELYING ON THE COMPANY FOR
ANY TAX ADVICE.

(a) Exercising the Option.

(1) Non-Qualified Stock Option ("NSO"). If this Option does not qualify
as an ISO, the Optionee may incur regular federal income tax and
California income tax liability upon exercise. The Optionee will be
treated as having received compensation income (taxable at ordinary
income tax rates) equal to the excess, if any, of the fair market value
of the Exercised Stock on the date of exercise over their aggregate
Exercise Price, and the Company will receive a deduction for the same
amount. If the Optionee is an employee or a former employee, the Company
will be required to withhold from his or her compensation or collect from
Optionee and pay to the applicable taxing authorities an amount equal to
a percentage of this compensation income at the time of exercise.

(2) Incentive Stock Option ("ISO"). If this Option qualifies as an ISO,
the Optionee will have no regular federal income tax or California income
tax liability upon its exercise, although the excess, if any, of the fair
market value of the Exercised Stock on the date of exercise over their
aggregate Exercise Price will be treated as an adjustment to the
alternative minimum tax for federal tax purposes and may subject the
Optionee to alternative minimum tax in the year of exercise.

(b) Disposition of Stock.

(1) NSO. If the Optionee holds NSO Stock for at least one year, any gain
realized on disposition of the Stock will be treated as long-term capital
gain for federal income tax purposes. If the Optionee holds NSO Stock
for less than one year, any gain realized on disposition of the Stock
will be treated as short-term capital gain for federal income tax
purposes.

(2) ISO. If the Optionee holds ISO Stock for at least one year after
exercise and two years after the grant date, any gain realized on
disposition of the Stock will be treated as long-term capital gain for
federal income tax purposes. If the Optionee disposes of ISO Stock
within one year after exercise or two years after the grant date, any
gain realized on such disposition will be treated as compensation income
(taxable at ordinary income rates) to the extent of the excess, if any,
of the lesser of (A) the difference between the fair market value of the
Stock acquired on the date of exercise and the aggregate Exercise Price,
or (B) the difference between the sale price of such Stock and the
aggregate Exercise Price.

(c) Notice of Disqualifying Disposition of ISO Stock. If the Optionee
sells or otherwise disposes of any of the Stock acquired pursuant to an
ISO on or before the later of (i) two years after the grant date, or (ii)
one year after the exercise date, the Optionee shall immediately notify
the Company in writing of such disposition. The Optionee understands and
agrees that he or she may be subject to income tax withholding by the
Company on the compensation income recognized from such early disposition
of ISO Stock by payment in cash or out of the current earnings paid to
the Optionee.

7. Option Agreement Not a Contract of Employment. Neither the Plan nor this
Option Agreement is a contract of employment, and the terms of employment of
Optionee shall not be affected in any way by the Plan or this Option
Agreement except as specifically provided therein. The establishment of the
Plan and the entering into of this Option Agreement shall not be construed as
conferring any legal rights upon Optionee for a continuance of employment;
nor shall it interfere with the right of the Company (or its Subsidiary, if
applicable) to discharge the Optionee.

8. Entire Agreement. This Option Agreement, which is governed by California
law, constitutes the entire agreement between the Company and the Optionee
relating to the Option, superseding all prior understandings and agreements,
whether written or oral. If this Option Agreement concerns the Optionee's
initial option under the Plan, then this Agreement specifically supersedes
any prior agreements or understandings, whether written or oral, concerning
Company equity, including, without limitation, those contained in any offer
letter.

EXHIBIT A
NOTICE OF STOCK OPTION GRANT

TO: [Employee's Name and Address]

You have been granted an option to purchase Common Stock of Supertex, Inc.
(the "Company") under the 2001 Stock Option Plan (the "Plan") as follows:

Grant Number ____________________
Date of Grant ____________________
Vesting Commencement Date ____________________
Exercise Price per Share ____________________
Total Number of Stock Granted ____________________
Total Exercise Price ____________________
Type of Option [ISO or NSO]
Expiration Date:

Vesting Schedule:
This Option may be exercised, in whole or in part, in accordance with the
following schedule:

shares of Stock on

Termination Period:

This Option must be exercised thirty (30) days after termination of
employment or consulting relationship, or such longer period as may be
applicable upon death or disability of Optionee as may be provided in the
Option Agreement, but in no event later than the Expiration Date as provided
above.

______________________
PRESIDENT'S INITIALS

Grant No. __________
Grant Date __________

Disqualifying Disposition:

If the Optionee sells or otherwise disposes of any of the Stock acquired
pursuant to an ISO on or before the later of (i) two years after the grant
date, or (ii) one year after the exercise date, the Optionee shall
immediately notify the Company in writing of such disposition. The Optionee
agrees that he or she may be subject to income tax withholding by the Company
on the compensation income recognized from such early disposition of ISO
Stock by payment in cash or out of the current earnings paid to the Optionee.

By your signature and the signature of the Company's representative below,
you and the Company agree that this Option is granted under and governed by
the terms and conditions of the Plan and this Option Agreement. Optionee
has reviewed the Plan and this Option Agreement in their entirety, has had
an opportunity to obtain the advice of legal and tax counsel prior to
executing this Option Agreement and fully understands all provisions of the
Plan and Option Agreement. Optionee hereby agrees to accept as binding,
conclusive and final all decisions or interpretations of the Committee upon
any questions relating to the Plan and Option Agreement.

OPTIONEE: SUPERTEX, INC.:

___________________ _____________________
Signature Henry C. Pao, President

___________________ Date:___________________
Print Name

Date:______________

CONSENT OF SPOUSE
The undersigned spouse of Optionee has read and hereby approves the terms and
conditions of the Plan and this Option Agreement. In consideration of the
Company's granting his or her spouse the right to purchase Stock as set forth
in the Plan and this Option Agreement, the undersigned hereby agrees to be
irrevocably bound by the terms and conditions of the Plan and this Option
Agreement and further agrees that any community property interest shall be
similarly bound. The undersigned hereby appoints the undersigned's spouse
as attorney-in-fact for the undersigned with respect to any amendment or
exercise of rights under the Plan or this Option Agreement.

_____________________
Signature of Spouse of Optionee

_____________________
Print Name

EXHIBIT B
EXERCISE NOTICE AGREEMENT

Reviewed by:______________
Date: ____________________

SUPERTEX, INC.
1235 Bordeaux Dr.
Sunnyvale, CA 94088-3607

Attention: Secretary

1. Exercise of Option. Effective as of today, _______________200__, the
undersigned ("Purchaser") hereby elects to purchase shares (the "Stock") of
the Common Stock of Supertex, Inc. (the "Company") under and pursuant to the
2001 Stock Option Plan (the "Plan") and the Stock Option Agreement dated
__________________ (the "Option Agreement"). The purchase price for the
Stock shall be $__________, as required by the Option Agreement.

2. Delivery of Payment. Purchaser herewith delivers to the Company the full
purchase price for the Stock. Consideration for exercising this Option is in
the form of:

______ Cash or Check of $__________________.

(For the Same Day Exercise & Sell transaction, my broker ____________________
will advance the exercise price no later than two days after the date of this
notice.)

______ Stock of the Company's Common Stock at a market value of $_________
per share (yesterday's closing price) form stock certificate number ________,
which certificate I deliver along herewith, duly endorsed to Supertex, Inc.

3. Representations of Optionee. Optionee acknowledges that Optionee has
received, read and understood the Plan and the Option Agreement and agrees to
abide by and be bound by their terms and conditions.

4. Rights as Shareholder. Subject to the terms and conditions of this
agreement, Optionee shall have all of the rights of a shareholder of the
Company with respect to the Stock from and after the date that Optionee
delivers full payment of the Exercise Price until such time as Optionee
disposes of the Stock.

5. Tax Consultation. Optionee understands that Optionee may suffer adverse
tax consequences as a result of Optionee's purchase or disposition of the
Stock. Optionee represents that Optionee has consulted with any tax
consultants Optionee deems advisable in connection with the purchase or
disposition of the Stock and that Optionee is not relying on the Company for
any tax advice.

6. Disqualifying Disposition. If the Optionee sells or otherwise disposes of
any of the Stock acquired pursuant to an ISO on or before the later of (i)
two years after the grant date, or (ii) one year after the exercise date, the
Optionee shall immediately notify the Company in writing of such disposition.
The Optionee agrees that he or she may be subject to income tax withholding
by the Company on the compensation income recognized from such early
disposition of ISO Stock by payment in cash or out of current earnings paid
to the Optionee.

7. Entire Agreement; Governing Law. The Plan and Option Agreement are
incorporated herein by reference. This agreement, the Plan and the Option
Agreement constitute the entire agreement of the parties and supersede in
their entirety all prior undertakings and agreements of the Company and
Optionee with respect to the subject matter hereof, and such agreement is
governed by California law except for that body of law pertaining to conflict
of laws.

Submitted by: Accepted by:

OPTIONEE: SUPERTEX, INC.

By______________________ By________________________

________________________ ________________________
Signature Print Name

________________________
Print Name

________________________
Social Security Number

SPOUSE OF OPTIONEE:

_______________________
Signature

_______________________
Print Name

Address:_______________ Address: 1235 Bordeaux Dr.
_______________________ Sunnyvale, CA 94088-3607

Delivery Instructions:

Please send the certificate to :

______________________
______________________

EXHIBIT 5.1

PILLSBURY WINTHROP LLP
2550 HANOVER STREET
PALO ALTO, CA 94304

September 13, 2001

Supertex, Inc.
1235 Bordeaux Drive
Sunnyvale, CA 94089

Re: Registration Statement on Form S-8

Ladies and Gentlemen:

With reference to the Registration Statement on Form S-8 to be filed by
Supertex, Inc., a California corporation (the "Company"), with the
Securities and Exchange Commission under the Securities Act of 1933, as
amended, relating to 2,000,000 shares of the Company's Common Stock (the
"Shares") issuable pursuant to the Company's 2001 Stock Option Plan (the
"Plan"), it is our opinion that the Shares have been duly authorized, and
when issued and sold in accordance with the Plan, will be legally issued,
fully paid and non-assessable.

We hereby consent to the filing of this opinion with the Securities and
Exchange Commission as Exhibit 5.1 to the Registration Statement.

Very truly yours,

/s/ PILLSBURY WINTHROP LLP

EXHIBIT 23.1
CONSENT OF INDEPENDENT ACCOUNTANTS

We hereby consent to the incorporation by reference in this Registration
Statement on Form S-8 of our report dated April 27, 2001 relating to the
consolidated financial statements and financial statement schedule, which
appears in Supertex, Inc.'s Annual Report on Form 10-K for the year ended
March 31, 2001.

/s/ PricewaterhouseCoopers LLP

San Jose, California
September 17, 2001

EXHIBIT 24.1

POWER OF ATTORNEY

KNOW ALL MEN BY THESE PRESENTS, that each person whose signature appears
below constitutes and appoints Henry C. Pao and Jacqueline Limary, and each
of them, his or her true and lawful attorneys-in-fact and agents, each with
full power of substitution and resubstitution, for him or her and in his or
her name, place and stead, in any and all capacities, to sign any and all
amendments, including post-effective 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 granting unto said attorneys-in-fact and agents, and each of them,
full power and authority to do and perform each and every act and thing
requisite and necessary to be done, as fully to all intents and purposes as
he might or could do in person, hereby ratifying and confirming all that
each of said attorneys-in-fact and agents, or his substitute or substitutes,
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 below by the following persons in the capacities
and on the dates indicated.

Name Title Date

Henry C. Pao President (Principal Executive September 14, 2001
Officer & Principal Financial
Officer) and Director

Benedict C.K. Choy Senior Vice President, Secretary September 14, 2001
and Director

Richard Siegel Executive Vice President and September 14, 2001
Director

Mark Loveless Director September 14, 2001

Elliott Schlam Director September 14, 2001

Milton Feng Director September 14, 2001