<PAGE>
PROSPECTUS SUPPLEMENT NO. 2
(To Prospectus dated November 24, 2000)
[INTERNATIONAL RECTIFIER LOGO]
INTERNATIONAL RECTIFIER CORPORATION
$550,000,000 4 1/4% CONVERTIBLE SUBORDINATED NOTES DUE 2007
AND
7,438,967 SHARES OF COMMON STOCK ISSUABLE UPON CONVERSION OF THE NOTES
This prospectus supplement relates to the resale by holders of our 4 1/4%
Convertible Subordinated Notes Due 2007 and shares of common stock issuable upon
the conversion of the notes. This prospectus supplement may only be delivered or
used in connection with our prospectus dated November 24, 2000. Our common stock
is listed on The New York Stock Exchange and the Pacific Exchange under the
symbol "IRF."
NEITHER THE SECURITIES AND EXCHANGE COMMISSION NOR ANY STATE SECURITIES
COMMISSION HAS APPROVED OR DISAPPROVED OF THESE SECURITIES OR PASSED UPON THE
ADEQUACY OR ACCURACY OF THIS PROSPECTUS SUPPLEMENT OR THE RELATED PROSPECTUS.
ANY REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE.
PROSPECTUS SUPPLEMENT DATED DECEMBER 12, 2000
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The information appearing in the following table supplements or supersedes
in part the information in the table under the heading "Selling Holders" in our
prospectus and was provided by or on behalf of the selling holders.
<TABLE>
<CAPTION>
COMMON
STOCK
BENEFICIALLY
OWNED AFTER
PRINCIPAL AMOUNT OF COMMON STOCK OFFERING
NOTES BENEFICIALLY BENEFICIALLY OWNED COMMON STOCK -------------------
NAME AND ADDRESS OWNED AND OFFERED BEFORE OFFERING OFFERED(1) AMOUNT %
---------------- ------------------- ------------------ -------------- -------- --------
<S> <C> <C> <C> <C> <C>
1976 Distribution Trust FBO
A.R. Lauder / Zinterhoffer............... $ 15,000 0 203 0 *
Advent Capital Management
30 Broad Street, 30th Floor
New York, NY 10004
1976 Distribution Trust FBO
Jene A. Lauder........................... $ 18,000 0 243 0 *
Advent Capital Management
30 Broad Street, 30th Floor
New York, NY 10004
American Motorist Insurance
Company.................................. $ 579,000 0 7,831 0 *
Advent Capital Management
30 Broad Street, 30th Floor
New York, NY 10004
Acepehoe County Colorado................... $ 70,000 0 947 0 *
Advent Capital Management
30 Broad Street, 30th Floor
New York, NY 10004
Bank Austria Cayman Island, Ltd............ $ 4,640,000 0 62,758 0 *
666 Third Ave., 26th Floor
New York, NY 10017
British Virgin Island Social
Security Board........................... $ 37,000 0 500 0 *
Advent Capital Management
30 Broad Street, 30th Floor
New York, NY 10004
CIBC World Markets......................... $ 12,695,000 0 171,705 0 *
1 World Financial Center
200 Liberty St., 8th Floor
New York, NY 10281
City University of New York................ $ 170,000 0 2,299 0 *
Advent Capital Management
30 Broad Street, 30th Floor
New York, NY 10004
Continental Assurance Company Separate
Account (E).............................. $ 4,680,000 0 63,299 0 *
CNA Plaza
23 South
Chicago, IL 60685
Goldman Sachs and Company.................. $ 925,000 0 12,511 0 *
180 Maiden Lane, 41st Floor
New York, NY 10038
Grady Hospital Foundation.................. $ 110,000 0 1,488 0 *
Advent Capital Management
30 Broad Street, 30th Floor
New York, NY 10004
Greble Foundation, The
Advent Capital Management................ $ 99,000 0 1,339 0 *
30 Broad Street, 30th Floor
New York, NY 10004
</TABLE>
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<TABLE>
<CAPTION>
COMMON
STOCK
BENEFICIALLY
OWNED AFTER
PRINCIPAL AMOUNT OF COMMON STOCK OFFERING
NOTES BENEFICIALLY BENEFICIALLY OWNED COMMON STOCK -------------------
NAME AND ADDRESS OWNED AND OFFERED BEFORE OFFERING OFFERED(1) AMOUNT %
---------------- ------------------- ------------------ -------------- -------- --------
<S> <C> <C> <C> <C> <C>
Independence Blue Cross.................... $ 169,000 0 2,286 0 *
Advent Capital Management
30 Broad Street, 30th Floor
New York, NY 10004
Merrill Lynch Insurance Group.............. $ 252,000 0 3,408 0 *
Advent Capital Management
30 Broad Street, 30th Floor
New York, NY 10004
Nabisco Holdings........................... $ 30,000 0 406 0 *
Advent Capital Management
30 Broad Street, 30th Floor
New York, NY 10004
New Orleans Firefighters
Pension / Relief Fund.................... $ 113,000 0 1,528 0 *
Advent Capital Management
30 Broad Street, 30th Floor
New York, NY 10004
Occidental Petroleum....................... $ 196,000 0 2,651 0 *
Advent Capital Management
30 Broad Street, 30th Floor
New York, NY 10004
Ohio Bureau of Workers
Compensation............................. $ 218,000 0 2,949 0 *
Advent Capital Management
30 Broad Street, 30th Floor
New York, NY 10004
Oppenheimer Convertible Securities Fund.... $ 6,000,000 0 82,152 0 *
2 World Trade Center
34th Floor
New York, NY 10023
Prime Convertible Fund Ltd................. $ 500,000 0 6,763 0 *
PrimeCorp Investment
Management Limited
83 Pall Mall
London SWIY 5ES
Raytheon Master Pension Trust.............. $ 447,000 0 6,046 0 *
Advent Capital Management
30 Broad Street, 30th Floor
New York, NY 10004
RJR Reynolds............................... $ 97,000 0 1,312 0 *
Advent Capital Management
30 Broad Street, 30th Floor
New York, NY 10004
Shell Pension Trust........................ $ 313,000 0 4,233 0 *
Advent Capital Management
30 Broad Street, 30th Floor
New York, NY 10004
State of Maryland Retirement
System................................... $ 2,646,000 0 35,788 0 *
Advent Capital Management
30 Broad Street, 30th Floor
New York, NY 10004
Any other holder of notes or
future transferee, pledgee, donee
or successor of any holder (2)(3)........ $ 98,357,000 0 1,330,318 0 *
</TABLE>
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* Less than 1%.
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(1) Assumes conversion of all the holder's notes at a conversion price of
$73.935 per share of common stock and resale of all shares of common stock
offered hereby.
(2) Information about other selling security holders will be set forth in
prospectus supplements, if required.
(3) Assumes that any other holders of notes, or any future transferees,
pledgees, donees or successors of or from any such other holders of notes,
do not beneficially own any common stock other than the common stock
issuable upon conversion of the notes at the initial conversion rate.
Information concerning the selling holders may change from time to time and
any changed information will be set forth in supplements or amendments to the
prospectus if necessary. In addition, the per share conversion price, and
therefore the number of shares of common stock issuable upon conversion of the
notes, is subject to adjustment. As a result, the aggregate principal amount of
the notes and the number of shares of common stock into which the notes are
convertible may increase or decrease.
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