In April, IR (El Segundo, Calif.) put the business on the block. Its PCS business accounted for approximately $300 million, or about 26 percent of revenue, for its fiscal year.

The PCS business includes the company's so-called Non-Focus Products business and other lines. Product lines included in the transaction include certain discrete planar MOSFETs, discrete diodes and rectifiers, discrete thyristors, and automotive modules and assemblies.

''The divestiture enables the company to concentrate more fully its resources and assets on its Focus Products business and more readily achieve IR's long-term profit margin goals,'' said Alex Lidow, IR's CEO, in a statement. ''The benefits include improving our ability to further accelerate IR's transition to high-performance analog, digital, and mixed-signal ICs, and other advanced power management products.''