pSemi Corporation, a Murata company specializing in semiconductor integration and advanced connectivity, has announced the PE42448, a high-linearity SP4T RF switch manufactured on its UltraCMOS+ silicon-on-insulator (SOI) technology. The switch covers a frequency range of 10 MHz to 6 GHz with a maximum power handling of 52 dBm PMAX,PEAK and an IIP3 linearity approaching 90 dBm.

The PE42448 is part of pSemi’s first-generation switches utilizing the UltraCMOS+ RF platform, offering a monolithic design for complex switch architectures. It provides pin-for-pin compatibility with the recently announced PE42443 and PE42444 switches. The device includes a single logic control for managing two pairs of PE42448s and a straightforward power-up and power-down sequence, supporting applications in massive multiple-input, multiple-output (MIMO), test and measurement (T&M), land mobile radio (LMR), and general-purpose systems.
The PE42448 will be demonstrated at the 2025 International Microwave Symposium (IMS) in San Francisco, June 15–20, at booth #443. Samples are available now, with commercial availability scheduled for July 2025. For more information, visit the PE42448 product page.



