International Rectifier Schedules Earnings Release and Conference Call for April 27

EL SEGUNDO, Calif.--April 11, 2006--International Rectifier Corporation will release its fiscal third-quarter results on Thursday, April 27, at approximately 1:30 p.m. Pacific time, followed by a conference call at 1:40 p.m. Pacific time. CEO Alex Lidow and CFO Mike McGee will discuss the company's March-quarter results and June-quarter outlook. Participants may join the call by dialing 212-896-6121 by 1:35 p.m. Pacific time, or may listen over the Internet at http://investor.irf.com. To listen to the live call, please go to the web site at least 15 minutes early to register, download, and install any necessary audio software.

A taped replay of this call will be available from approximately 3:40 p.m. Pacific time on Thursday, April 27, through 3:40 p.m. Pacific time on Tuesday, May 2, 2006. To listen to the replay by phone, call 800-633-8284 and enter reservation number 21261685. International callers may dial 402-977-9140 and use the same reservation number. To listen to the replay over the Internet, please go to http://investor.irf.com. The live call and replay will also be available on www.streetevents.com and www.vcall.com.

About International Rectifier

International Rectifier is a world leader in power management technology. IR's digital, analog and mixed signal ICs, advanced circuit devices, integrated power systems, and components enable high performance computing and eliminate energy waste from motors, the world's single largest consumer of electricity. Leading manufacturers of computers, energy efficient appliances, lighting, automobiles, satellites, aircraft and defense systems rely on IR's power management benchmarks to power their next generation products. For more information, go to www.irf.com.