IRF-2013.6.30-EX23.1

We consent to the incorporation by reference in the Registration Statements (Form S-8 Nos. 333-179345, 333-134316, 333-117489, 33-53589, 2-94436, 333-57608, 333-57575, 333-46901, 333-41363, 333-65265, 333-41904, 333-37308, 333-70560 and 33-63958) of our reports dated August 19, 2013, with respect to the consolidated financial statements and schedule of International Rectifier Corporation and Subsidiaries and the effectiveness of internal control over financial reporting of International Rectifier Corporation and Subsidiaries included in its Annual Report (Form 10-K) for the year ended June 30, 2013, filed with the Securities and Exchange Commission.