Series 3403 lightning EMP protectors Fine protector hybrid technology Description HUBER+SUHNER fine protectors are a very special group of lightning EMP protectors which provide a very high degree of protection, especially for applications with DC powering via coaxial cable. They offer an ex- tremely effective surge pulse reduction, which makes them suitable to protect even very sensitive microe- lectronic circuits, e.g. GPS timing systems for CDMA mobile communication systems. Features • Rugged, stable and reliable fine protectors with very low residual pulse energy • DC continuity for remote powering • Easy installation – screw or bulkhead • Full lightning protection as standard gas discharge tube (GDT) protectors • Gas discharge tube included • Waterproof IP65 General specification Electrical data RF characteristics Impedance Frequency range Return loss (RL) Insertion loss (IL) RF power transmission DC current rating Protection characteristics Surge current handling capability Residual pulse energy 50 Ω 650/800 to 2500 MHz (box/barrel design) or 5 to 400 MHz (barrel design) 20 dB min. 0.5 dB max. 50 W max. according to design – refer to page 48 test pulse box design barrel design 8/20 µs single 8/20 µs multiple 10/350 µs 30 kA 20 kA 8 kA 20 kA 10 kA 5 kA for typical values refer to the following diagram 46
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