The QWP-43M43F-ER from PolyPhaser is a Low PIM, Quarter Wave Surge Protector that operates from 555 MHz to 4 GHz. It can handle an input power of up to 200 W and surge current of up to 50 kA. This surge protector has an insertion loss of less than 0.1 dB and passive intermodulation (PIM) of below 160 dBc. It utilizes a quarter-wave stub design to protect critical hardware while maintaining the RF performance. The QWP-43M43F-ER is available in a module that measures 70.36 x 24.89 x 37.34 mm with 4.3-10 (Male) input and 4.3-10 (Female) output connectors. It is suitable for use in CBRS networks, cellular, distributed antenna systems, emergency response systems, and public safety system applications.