International Rectifier (IR) is a power management expert with products that can empower you! IR is a major worldwide supplier of power semiconductors--key power conversion components that make electricity use less energy and work smarter. Founded in 1947, IR is the oldest dedicated semiconductor manufacturer in the world, and the only company that produces components to address the entire power conversion process. Serving to make variable-speed motors practical, allow laptop computers to run longer, along with raising the bar for vehicle performance and fuel economy, IR also holds key patents on the products that created the $4.5 billion dollar power MOSFET industry.