Series 3409 lightning EMP protectors High-power/low-IM gas discharge tube (GDT) hybrid technology Description Features HUBER+SUHNER series 3409 high-power gas discharge tube (GDT) protectors are a new generation of ultimate GDT protectors – suitable to meet the demanding high RF performance and protection requirements of future mobile communications transceivers with DC powering of outdoor equipment. The customer is freed from any RF power and IM performance considerations. Thus the protectors are especially suitable for multicarrier systems. The availability of this kind of GDT protectors concerning frequency range is not limited by the gas discharge tube (as it is the case with standard GDT protectors which are limited to applications below about 3 GHz). In addition, the protection performance is superior to existing standard GDT protectors. • DC continuity for remote powering • RF peak power not limited by gas discharge tube • Superior RF performance • Excellent low PIM performance • Availability for application bands between 380 MHz and 18 GHz (N interface) • Safe extinguishing of gas discharge tube under the influence of RF power • Up to 99 % reduced residual pulse energy • Waterproof IP65 min. • Semper self-extinguishing functionality included (see page 91) • Gas discharge tube installed (90 V) • AISG transmission capability (optional) General specifications Electrical data RF characteristics Impedance Frequency range Return loss (RL) Insertion loss (IL) Passive intermodulation (PIM) RF power transmission and DC current ratings Protection characteristics Surge current handling capability Residual pulse voltage and energy 50 Ω according to product detail specification (data sheet) 20 dB min., refer to product detail specification (data sheet) 0.2 dB max., refer to product detail specification (data sheet) according to product detail specification (data sheet) typ. –160 dBc 3rd order at 2 x 20 W / 2 x 43 dBm refer to data in chapter «general information - connector interfaces» and product detail specification (data sheet) test pulse 8/20 µs single 8/20 µs multiple 10/350 µs 30 kA 20 kA 8 kA for typical values refer to the following diagram 66 HUBER+SUHNER Lightning protection
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