EMP and Lightning Protection

HUBER+SUHNER quarter-wave lightning EMP protectors offer the best lightning protection available in the market, as they form a short for surge signals basically. They have been established as a worldwide industry standard by HUBER+SUHNER as the original manufacturer. The products are maintenance-free and feature the best protection performance with both the highest surge current handling capability and the lowest residual pulse amplitude. Also, their RF performance is superior to other designs, including passive intermodulation. HUBER+SUHNER lightning EMP protectors series 3400 offer a large variety of products and can be adapted to any application. Besides connectorisation and mounting principle, the frequency range has to be selected properly due to their generally limited bandwidth.

•  Broadband
•  Available for application bands between 380 MHz and 18 GHz (N, SMA)
•  Best PIM performance
•  Highest current handling capability up to 100 kA max.
•  Maintenance free

Standard versions for applications with RF and DC components on the antenna line. The standard GDT lightning / EMP protectors feature DC continuity and large bandwidth. Most HUBER+SUHNER GDT protector designs also offer excellent performance in NEMP applications. For specific applications internally DC-blocked GDT protectors are also available.

HUBER+SUHNER gas discharge tube protectors are normally delivered without gas tube some times called gas capsule. This allows the customer to select the appropriate GDT in accordance with his application conditions, especially the maximum operation signal voltage amplitude.

•  Broadband DC to 3 GHz
•  DC continuity for remote powering
•  Gas discharge tube replaceable
•  Easy maintenance
•  Semper self-extinguishing functionality optional
•  Impedance 50 or 75 Ω

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 extremely effective surge pulse reduction, which makes them suitable to protect even very sensitive microelectronic circuits, e.g. GPS timing systems for CDMA mobile communication systems.

•  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

HUBER+SUHNER miniature gas discharge tube protectors are designed to protect against multiple electromagnetic threats including SURGE, NSL, ESD or (H)EMP.The unique design guarantees excellent dynamic protection performance and also includes a fixed integrated gas discharge tube (GDT). Miniature GDT protectors have a bulkhead feed-through configuration and can be easily installed in place of a standard waterproof bulkhead coaxial connector to harden existing equipment.

•  Waterproof interface even in un-mated conditions
•  Low contact resistance between protector body and mounting wall
•  Space saving in-line design
•  Broadband DC to 3 GHz
•  Surge current handling capability up to 5 kA (8/20 µs)
•  DC continuity for remote powering
•  Fix installed GDT, static spark over-voltage nom. 150 V
•  In conformity with the LPZ concept at the boundaries from 0B – 1 and higher
•  Different or additional protectors need to be used for lightning protection.

HUBER+SUHNER 3406 slimline protectors provide surge protection for any electronic equipment connected to coaxial lines up to 6 GHz. The gas discharge tube protection principle supports simultaneous transmission of RF, data and DC. The gas discharge tubes are fix integrated. The protectors can handle any induced surge signals but partial lightning current up to the specified current handling capability only. For higher lightning current handling refer to our gas discharge tube (GDT) protector series 3401 and 3402. Multi-carrier applications with high RF peak power and special passive intermodulation requirements are covered by series 3409.

•  Broadband operation from DC up to 6 GHz (BNC = DC up to 4 GHz)
•  DC continuity for remote powering
•  Slim in-line design
•  Permanently installed gas discharge tube
•  – GDT static sparkover voltage typ. 150 to 250 V (100 V/s)
•  – GDT dynamic sparkover voltage typ. ≤ 700 V (1 kV/μs)
•  Impedance 50 or 75 Ω

3407 QUARTER-WAVE STUB TECHNOLOGY WITH INTEGRATED HIGH-PASS FILTER Family

HUBER+SUHNER quarter-wave lightning protectors with integrated high-pass filter feature an added useful RF component to the proven premium standard quarter-wave protector design. Thus, they can offer an essentially improved protection performance.

•  Residual voltage reduced by 80% compared to standard types of series 3400
•  Residual energy reduced up to factor 2000 (more than 99.9%) compared to the series 3400
•  DC-blocking on protected side of the device (galvanic isolation)
•  Available for applications from 70 MHz to 18 GHz (N, SMA)

HUBER+SUHNER gas discharge tube (GDT) protectors with integrated high-pass filter feature an added useful RF component to the proven standard GDT protectors. Thus, they offer a much better protection performance. The design allows a DC injection facility to be integrated as well. Gas discharge tubes can be easily exchanged for new operation conditions or replaced in the case of a necessary service.

•  Residual voltage reduced by 40% compared to standard GDT protectors of series 3401/3402
•  Residual energy reduced by approx. 60% compared to the series 3401/3402
•  Decoupling between protector and possibly deployed, succeeding surge protective device or electronic components like a transient voltage suppressor (diode or MOV)
•  DC-blocking on protected side of the device (galvanic isolation)

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
•  Gas discharge tube installed (90 V)
•  AISG transmission capability (optional)

Our CAT5 and CAT6 (Gigabit) data line protectors are Power over Ethernet (PoE) compatible and available as IP68 rated robust components for outdoor applications (i.e. backhaul microwave links) or in IP20 specified housings for indoor installations (i.e. data processing centres).

•  Protectors for Ethernet CAT5 in channel class D
•  Protectors for Ethernet CAT6 in channel class E
•  Data line protectors for circular MIL connector D38999

The HUBER+SUHNER DC Block product line includes DC blocks (inner conductor disconnected) and DC-DC blocks (inner and outer conductor disconnected) for galvanic isolation up to 15 kV. They block high-amplitude and low frequency surge voltages e.g. occurring during regular electric railway operation along railway lines. They provide sufficient safety even in the event of the overhead high voltage lines falling to the ground.

•  Galvanic isolation of the RF signal path
•  Protects from effects caused by ground potential rise
•  Provides ground potential separation
•  Protects against electrolytic corrosion caused by parasitic current
•  DC blocking configuration on inner and/or outer conductor
•  Blocking DC voltage up to 15 kV
•  Broadband operation up to 3000 MHz
•  Low intermodulation performance
•  Bulkhead mounting and grounding
•  Waterproof design
•  Maintenance free
•  Protects against electromagnetic interference caused by traction return current

HUBER+SUHNER series 9076 grounding kits enable reliable grounding of today’s usual corrugated copper tube and RG cables for radio transmitter antenna installations.