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) August 3, 2006

INTERNATIONAL RECTIFIER CORPORATION

(Exact name of registrant as specified in its charter)

Delaware	1-7935		95-1528961
(State or other jurisdiction of incorporation)	(Commission File Number)		(IRS Employer Identification No.)

233 KANSAS STREET, EL SEGUNDO, CALIFORNIA		90245
(Address of principal executive offices)		(Zip Code)

Registrant’s telephone number, including area code 310-726-8000

NO CHANGE
(Former name or former address, if changed since last report.)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

o Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

o Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

o Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

o Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Item 2.02. Results of Operations and Financial Condition.

On August 3rd, 2006, International Rectifier Corporation issued a press release announcing its financial results for the fourth fiscal quarter of fiscal year 2006. A copy of the press release is furnished as Exhibit 99.1 to this report and is incorporated herein by reference.

Item 9.01. Financial Statements and Exhibits.

(d) Exhibits.

Exhibit No.		Description
99.1		Press release of International Rectifier Corporation, dated August 3rd, 2006, reporting financial results for the fourth fiscal quarter of fiscal year 2006.

The information in this Current Report on Form 8-K, including the exhibit, will not be treated as “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934 (the “Exchange Act”) or otherwise subject to the liabilities of that section. This information will not be incorporated by reference into a filing under the Securities Act of 1933, or into another filing under the Exchange Act, unless that filing expressly refers to specific information in this report.

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.

	INTERNATIONAL RECTIFIER CORPORATION

Date: August 3, 2006	By:	/s/ DONALD R. DANCER
		Name:	Donald R. Dancer
		Title:	Secretary and General Counsel