Metal oxide surge arrestors of this voltage range (3-138kV) are protective apparatus used for protecting AC transmission and transformation equipment against damage from atmospheric and switching over voltage. Compared with silicon carbide surge arrestors, metal oxide surge arrestors have superior protective characteristics, good reliability, high discharge capacity, and simple construction, thus assuring the best overall protection for transmission and transformation equipment.

Usually, the arrestor is connected between system and ground in parallel with protected equipment. At continuous operating voltage, metal oxide arrestors appear to be an extremely high resistance, with the resistive current through the arrestor in the order of microamperes. In appearance of a lightning strike or switching surge on the system, the residual voltage across the arrestor will be limited to a certain permissible value because of the excellent non-linearity of arrestors. The high surge energy of the line will be absorbed, thus the insulation of electrical equipment is protected.

The zinc oxide surge arrestor can be used in the following conditions: ambient temperature -40º C to +40º C; altitude above sea level up to 1000m; withstanding 8.0 earthquake intensity (horizontal acceleration 0.2g). Anti-vibration type, anti-pollution type and plateau type arrestors are available for special applications. Anti-vibration type arrestors are adaptable for use in 9.0 earthquake intensity. Anti-pollution type arrestors are usable in heavy pollution areas. Plateau type arrestors are for relative high altitude regions.

Highest surge protection available for CATV F Connectors!

Our patented F-Class technology delivers the highest frequency "F" Connector surge arrestor in the industry for CATV, remote video monitoring, broadband and cable modem solutions. Able to withstand harsh environmental conditions, the high reliability F-Class is both rugged and waterproof.

Technical Specifications

• 0(dc) - 1GHz (PTCF-01)
• 0(dc) - 2.5GHz (PTCF-02)
• VSWR: 1.2 typical
• Insertion Loss: 0.15 typical
• Maximum Surge Protection: 20kA (connector limited)
• Multiple Strike Protection: 10kA(10x)
• Gas Discharge Tube 90v
• Nickel Plated Brass & Bronze/Silver Pin Construction
• Environmental: IP67

For more information or a datasheet with complete product specifications, visit www.nexteklightning.com.

The PTC-C030 patented design is simply the best lightning protector for the Cisco Aironet. The gas discharge tube and sub-components used in this device are the highest quality available and exceeds the surge protection capability of the F connector itself, this means that the connectors will be destroyed before the Gas Discharge Tube is damaged, protecting the equipment from very high surge currents.

THE PTC-C030 IS SO WELL DESIGNED, NO REPLACEMENT GDT WILL EVER BE NECESSARY.

The PTC-C030 lightning arrestor is designed for high lightning strike areas, and has optimized RF performance at frequencies up to 2.5GHz. This specially designed SurgeGaurd product is also characterized by passing DC without any degradation to performance and addresses the stringent demands of the Cisco Aironet application.

Specially Designed for Cisco Aironet 1400 Series

• 0(dc) - 2.5GHz
• VSWR: 1.2 typical
• Insertion Loss: 0.15 typical
• Maximum Surge Protection: 30kA (connector limited)
• Multiple Strike Protection: 20kA(10x)
• Gas Discharge Tube 90v
• Nickel Plated Brass & Bronze/Silver Pin Construction
• Environmental: IP67

For more information or a datasheet with complete product specifications, visit www.nexteklightning.com.

S-Class Heavy Duty Coaxial Protectors

• Up to 3.4GHz
• 50kA surge current capability
• DC pass and bidirectional protection
• Low insertion loss and VSWR

NexTek's S-Class protection devices are among the most robust arrestors available. Used at frequencies of up to 3.4 GHz to protect a wide variety of commercial and military radio applications, S-Class protectors are available in a wide variety of connector types and gender for use with many different types of equipment.

These protectors use heavy duty, multi-strike, gas discharge tubes (GDT) to protect equipment from transients. PTC models use factory installed GDTs for the life of the arrestor. PTR models use GDTs with holders that easily unscrew for on-site replacement. The GDT is selected based on the RF power of the application. To optimize installation mounting and grounding brackets are available for most models. For higher frequency, higher RF power applications, or lower let-through energy requirements, consider the QSS, E-Class, G-Class, or FPL series.

These units are built to withstand the most extreme of environments, typically rated to IP68 standards (submerged to 1 meter for 24 hours) the S-Class devices are constructed of high quality metals typically nickel plating over brass machined bodies – never aluminum.

The QSR7F7F0300 quarter wave stub device features best-in-class performance specifications, including bi-directional protection, low VSWR (1.05 typical), high RF power and ultra-low let-through (5V typical). Using robust materials in construction the maintenance free quarter wave series is ruggedized, weatherproof to IP68 standards, and can withstand multiple strikes as well as very high transients up to 100kA_pk.

• 820MHz - 970MHz / 1.7GHz - 2.2GHz
• Maximum Surge Protection: 100kA
• Multiple Strike Protection: 60kA(10x)
• VSWR: 1.10 typical
• Insertion Loss: 0.05 typical
• 7-16DIN-female to 7-16DIN-female, bi-directional
• PIM 3: >-150dBc typical (2x43 dBm)
• Environmental: IP68

Most installations use large rigid or semi rigid coaxial cable down lead on the tower. A transition to a more flexible and smaller cable is frequently made to go to the cabinet or inside the cabinet. This protector will allow downsizing the conductor and protect against transients.

This best-in-class SurgeGuard™ gas tube lightning arrestor family is designed to maximize protection and expedite installation. NexTek PTRONF7AF protectors not only protect the coaxial line from transients, but provide a convenient and compact way to transition from semi-rigid or corrugated to flexible or braided jumpers. The SurgeGuard™ PTRONF7AF family is a gas tube lightning arrestor that transitions from rugged 7-16 to the more compact N-type connector. A 7-16 DIN female is provided for connection to the larger coaxial cable, and an N female is available for connection of the internal jumper. The operating frequency of the PTR series is optimized for high performance to 2.2 GHz.

The PTRONF7AF exhibits additional industry-leading performance, including 10x multiple strike capability @ 20kA, and one-time 50kA (8x20μs) surge capability, bi-directional protection and an operating temperature range of -40°C to +90°C. The PTR series provides DC pass capability with a typical IM3 rating of -120dBc.

Able to withstand harsh environmental conditions with an industry leading IP68 rating, the high reliability PTR series is both rugged and water proof, featuring gold plated contacts for long life applications. The N connector bulkhead threads can be used to attach a grounding wire, through a bulkhead, or to a mounting bracket. Replaceable heavy duty protector capsules are available in voltages of 90V to 1000V, as required for RF power.

For more information or a datasheet with product specifications, visit www.nexteklightning.com.