EL SEGUNDO, Calif. June 2004 - International Rectifier Corporation (IR) (NYSE:IRF), a world leader in power management technology, announced that Vice President of Investor Relations Steve Harrison will present at the Thomas Weisel Partners Growth Forum 6.0 in Laguna Beach, California, Monday, June 14 at 9:20 a.m.

Harrison will discuss International Rectifier's business strategy and growth opportunities for its analog and mixed-signal power management technologies across key markets. A copy of the company's investor presentation material will be archived at http://www.irf.com/investor/investor_presentation.html.

Trademark Notice

IR(r) is a registered trademark of International Rectifier Corporation.

About International Rectifier

International Rectifier, a world leader in power management technology, employs about 5500 people with operations in 20 countries throughout North America, Europe, Japan and Asia. The company's headquarters are located in El Segundo, California. Its mixed-signal analog IC's, advanced circuit devices, integrated power systems, and components are relied upon by the world's leading makers of next generation laptops, desktops, energy-efficient appliances, automobiles, lighting, aircraft, satellites, and advanced defense systems. International Rectifier's stock is listed on the New York Stock Exchange under the ticker symbol IRF. The company's website is located at www.irf.com.

For more information, contact Steve Harrison, 310-252-7731.