Peregrine Semiconductor’s UltraCMOS PE45361 is a 100 W power limiter with high pulsed power handling, a low limiting threshold and positive threshold control. It provides a monolithic alternative to discrete, PIN-diode limiters based on gallium-arsenide (GaAs) technology to protect devices against excessive RF power, intentional jamming and ESD events. The PE45361 delivers reliable and repeatable power protection to sensitive low-noise receivers for test and measurement equipment and wireless infrastructure transceivers. The device features two operating modes – power limiting and power reflecting – to maximise performance and flexibility. These modes can be selected through the programmable VCTRL pin.
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