pSemi®, a Murata company leading in semiconductor integration and advanced connectivity, today announced two additions to its UltraCMOS+™ RF switch portfolio: the PE42544 SP4T RF switch and the PE42429 SPDT RF switch. Both devices deliver high isolation, low insertion loss, and industry-leading linearity for next-generation wireless infrastructure, test and measurement, and automated test equipment applications.
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The PE42429 is a high-isolation UltraCMOS+ SPDT RF switch designed for wireless infrastructure, test and measurement equipment, and ATE systems.
PE42544 UltraCMOS+™ SP4T RF Switch
The PE42544 is a high-isolation UltraCMOS+ SP4T RF switch operating from 9 kHz to 8.5 GHz. It delivers up to 40 dB isolation, a low insertion loss of 1.4 dB at 8.5 GHz, and a fast switching time of 300 ns. Manufactured using pSemi’s patented UltraCMOS+ RF-SOI technology with HaRP™ enhancements, the device provides excellent linearity (61 dBm IIP3) and reliable operation from -40 °C to +105 °C. It is housed in a compact 20-lead, 3 × 3 mm QFN package with an MSL 1 rating.
“The PE42544 expands our high-performance RF switch portfolio, providing customers with a versatile SP4T solution engineered for demanding test environments and next‑generation RF systems,” said Rodd Novak, vice president of sales and marketing, pSemi.
PE42429 UltraCMOS+ SPDT RF Switch
The PE42429 is a high-isolation UltraCMOS+ SPDT RF switch designed for wireless infrastructure, test and measurement equipment, and ATE systems. Operating from 9 kHz to 8.5 GHz, it delivers 46 dB isolation at 6 GHz, a low insertion loss of 1.1 dB at 8.5 GHz, and a fast 490 ns switching time. With HaRP™ technology and the UltraCMOS+ RF-SOI process, it achieves 65 dBm IIP3 linearity and reliable performance across -40 °C to +105 °C. The device is offered in a compact 12-lead, 2.0 × 2.0 mm QFN package with an MSL 1 rating.
“The PE42429 strengthens our RF switch portfolio with industry-leading isolation and linearity, enabling OEMs and test engineers to build next-generation RF systems with greater efficiency and signal integrity,” said Novak.
pSemi will showcase the PE42544 SP4T RF switch and the PE42429 SPDT RF switch at the 2026 International Microwave Symposium (IMS), to be held June 9-11, 2026, in Boston. Please stop by booth #17090 to see a live demonstration. Samples and evaluation kits for both switches are available now. For more information, please visit www.psemi.com or contact sales@psemi.com.
About pSemi
pSemi (formerly Peregrine Semiconductor) is a leader in the design and development of semiconductor integration, providing world-class capabilities with high-performance RF, analog and mixed signal solutions. With a 30-year legacy of technology advancements, strong IP portfolio and deep expertise in RF integration, our solution portfolio spans power management, connected sensors, antenna tuning, and RF frontends, which enable advanced modules for smartphones, base stations, personal computers, electric vehicles, data centers, IoT devices, healthcare and more. A wholly owned subsidiary of Murata Electronics North America, Inc., pSemi is headquartered in San Diego, with additional offices spanning North America, Europe, and Asia. For more information, please visit www.psemi.com and connect on LinkedIn at https://www.linkedin.com/company/psemi/.
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