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Coaxial Lightning Arrestors operate from 2 MHz to 2 GHz.

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Coaxial Lightning Arrestors operate from 2 MHz to 2 GHz.
Coaxial Lightning Arrestors operate from 2 MHz to 2 GHz.

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December 16, 2013 - Equipped with TNC to SMA connectors, SurgeGuard™ PTI-TNF-SAF Series provides 2-stage protection. First stage consists of Gas Discharge Tube to shunt high voltages to grounded outer conductor/shield, while second stage uses series capacitor on line, which reduces amount of energy that continues into radio front end. With nickel-over-brass construction and gold-plated center conductor, waterproof DC blocking units offer 10x multiple strike capability IN of 10 kA (8 x 20 μs) surge capability.
Original Press Release

NexTek, Inc.
439 Littleton Rd.
Westford, MA, 01886

NexTek Launches New DC Block SurgeGuard(TM) TNC to SMA Lightning Arrestor

Excellent Response and Residual Energy Reduction
Compact TNC to SMA Bulkhead Protector
Low VSWR and Insertion Loss
Multi-strike, Rugged and Waterproof

Westford, MA, - - Providing antenna port transient voltage protection for smaller radio equipment has been made easier with the release of a new range of compact, multi-stage surge protectors. NexTek, Inc., an ISO9001:2008 certified designer and manufacturer of best-in-class surge protection and EMC / power conditioning products, announces a new family of coaxial lightning arrestors designed to operate at frequencies between 2MHz and 2GHz. The SurgeGuard™ PTI-TNF-SAF is a dc-blocked gas discharge tube-type lightning arrestor with TNC to SMA connectors. This PTI series surge suppressor provides two stage protection in the most compact package available. The first stage of protection is a Gas Discharge Tube to shunt high voltages to the grounded outer conductor/shield. The second stage is a series capacitor on the line, which significantly reduces the amount of energy that continues into the radio front end. This approach provides industry-leading performance by reducing residual or let-through energy to be reduced to about 1% of other compact technologies. This device is effective against Lightning and high-speed transients such as ESD.

This unit's compact size assures maximum protection in minimum space. The TNC-female to SMA-female form factor is targeted at small radio enclosure antenna feed-through applications, for installation on the radio chassis or bulkhead. In a smaller form factor than any other protector of similar capability, it provides robust surge suppression and keeps harmful transient energy away from equipment and personnel.

Able to withstand harsh environmental conditions, the PTI-TNF-SAF series is both rugged and waterproof. Using nickel-over-brass construction and a gold plated center conductor, this family of arrestors meets many stringent military, commercial and environmental standards. Additional features include: TNC to SMA connectors, DC Blocking, 10x multiple strike capability IN of 10kA (8 x 20μs) surge capability, an IP68 Rating, and an operating temperature range of -40C to +90C.

Available in various passband configurations and response voltages, the SurgeGuard™ PTI series of lightning arrestors is value-priced in OEM quantities. For more information or a datasheet with product specifications, visit

Photography and Datasheet available:
NexTek’s SurgeGuard™ PTI series of DC-Blocked lightning arrestors operate at frequencies up to from 2Mhz to 2GHz.
Datasheet Link:

Applications Engineer
Mike Kauffman
NexTek, Inc.
2 Park Drive, Building #1
Westford, MA 01886
Tel: 978-486-0582 X13
Fax: 978 486 0583

Sales Manager
Ed Cope
NexTek, Inc.
2 Park Drive, Building #1
Westford, MA 01886
Tel: 978 486-0582 x11
Fax: 978 486 0583

About NexTek, Inc. NexTek is an excellence-oriented engineering company that provides best-in-class lightning protection, and EMC / power conditioning products and services. NexTek designs, develops, manufactures and markets EMI/EMC solutions Internationally. NexTek provides technical resources and solves customers’ EMC challenges by providing cost-effective, high-quality, high-performance products and services. NexTek offers high quality standard products and continues to evolve products to solve customer challenges. The core product portfolio is based upon coaxial RF protector designs using gas discharge, quarter-wave and filter technology. Along with the NexTek's High Current DC Feedthrough filter line, the coaxial products form a significant portion of NexTek's standard EMC products. This industry-leading product portfolio delivers both superior performance and value for wireless communications, SCADA, SmartGrid, WiMAX, Wi-Fi, aviation, military and homeland security applications.

NexTek's corporate headquarters, located in Westford, Massachusetts, house the Engineering, Sales and Marketing, and Supply Chain departments. NexTek is a Small Business that designs and manufactures products in the United States. For more information about NexTek and its products, please visit the company's web site at The SurgeGuard™ trademark is the property of NexTek, Inc.
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