4.3-10 F/F Bulkhead Coaxial RF Surge Protector, 698MHz - 2.7GHz, DC Pass, Low PIM -173dBcDescription Features Downloads L com's LCSP1000s series of surge arrestors use a patented surge filter design. The almost instantaneous response to a lightning surge minimizes energy let through and protects critical wireless equipment. Models available with ultra low PIM performance and DC Pass (AISG) capability, used in 4G and 5G applications. Frequency range from 698MHz to 2. 7GHz. DC Pass Topology. Low PIM Performance, VSWR <1. 12, Low Insertion