Have you been wondering how to select the correct surge protection for your Coaxial RF application? This newly-released Selection Guide is a handy tool which will help walk you through the selection process and end up with the best standard solution for your needs.
This include a review of our major product lines, a list of primary selection criteria that are important to know before making a decision, and some additional charts and information to help simplify the process.
Click through below to find the new RF Arrestor Selection Guide and start the process!
Although this new Technical Note covering how to test/screen an arrestor to ensure that it is working and operating properly was specifically created in reference to our FPL series of units designed to protect GPS and other Global Navigation equipment…the input here also applies to the majority of the NexTek FPL and FPN series units. Most of the FPL and FPN series, including the FPL GPS arrestors, use multiple stages of protection circuitry inside.
This relative complexity makes the FPL and FPN series Fine Protectors a bit more complex to test properly, when compared to other common types such as Gas Discharge Tube or Quarter Wavelength Shorted Stub arrestors.
Operational/Protection Voltage Testing
- Without an actual lightning tester (such as the common 1.2×50µs / 8×20µs Induced Lightning waveform testers,) it is difficult to completely verify Transient Response and Performance.
- The lowest-voltage component is usually the only one that can be tested using a Diode Tester or Slow Rising DC Power Supply & Multimeter combination. For NexTek FPL and FPN series devices, this usually means a fast-acting semiconductor Protection Diode that is responsible for final energy cleanup. However, this component is usually the least robust in terms of Transient Current Handling so if it remains intact and operating within specs…the entire unit should be working OK.
Test Voltage Levels – Units may have +1V, +3.3V, +5V, +12V, +24, or other common Protection Voltage ratings
Continuity and Insulation Testing
- Any FPL or FPN series units that are rated to pass DC Power through the unit will test positive for continuity between center pins, when using a Multimeter tool.
RF Thru-Performance / Proper Radio Operation
- One of the simplest ways to test the basic functionality of any arrestor, not just the FPL and FPN series units, is to test the unit in a radio installation and verify proper system operation. This alone is a positive indicator that the unit is operating properly and is probably not damaged.
Download Technical Note and Learn More
New International Partners Page
We are very happy to announce a brand new directory page, listing all of our International Agents and Partners around the world!
This page includes contact information for each partner, as well as a link to their website. This page will be updated regularly to reflect active relationships, so check back often and contact NexTek directly with any additional questions or queries.
How We Select Partners
We are continuing to expand our coverage internationally, so that our customers can have local access to our products, expertise, and technical support. Each company that we partner with has been selected with the utmost care, in order to develop mutually beneficial relationships that will truly expand NexTek’s presence while maintaining the same high level of expertise and support that we provide to our customers United States where we are based!
The selection criteria used here have been developed during our recent Sales Team expansion efforts over the past year, which have led to many new partnerships covering various regions of the United States.
Now Available on our website… Preliminary Datasheets for our brand-new C-L-C Pi Filter designs. Available in normal C-L-C configuration, or with optional Transient Suppression integrated into the Filter for complete EMC protection!
The Neverending Quest For Size Reduction
As with most technologies, RF and Wireless system design is an ever-changing and shifting world. As certain technologies or RF bands become popular, others fade away.
However, the one ever-present force on the industry is the steady, but relentless, push towards smaller size and better integration over time.
Lightning/Surge Protection at the PCB Level?
Here at NexTek we understand the desire to bring things into the box, or even all the way onto the Radio PCB… However, we also know that Lightning Transients contain too much energy to deal with safely at the PCB Level… Trace widths, ground place areas, and the components themselves all become limiting factors that will prevent complete and effective protection.
Given this reality, the last place where it is reasonable and safe to protect against Lightning or other Surge events is at the radio’s box or chassis level. By replacing the normal I/O connector with a protected version, designer can ensure that they have high-performance protection without paying any significant size or weight penalty. As long as the radio’s chassis is grounded well, the bulk of the Transient Energy will be drained safely to ground before entering the box and/or the PCB itself.
It may still be advisable to install some simple protection on the PCB, but only for final clean-up…Something like a small Protection Diode coupled with a DC Blocking Capacitor (if possible for your application) would provide plenty of protection against any residual energy that gets past the Protected I/O Connector.
Maximum Protection in the Minimum Amount of Space
Below, you can see an array of our Ultra-Compact protection options… They all include high-performance lightning protection, and are available in a wide variety of connector configurations on both the Input and Output side.
Outside Connector Options – Type N, TNC, SMA
Inside Connector Options – SMA, MMCX, RG188, RG316, and more!
Threat Types – Lightning, Static (ESD), and EMP
We are happy to announce the recent release of a brand-new two-page bulletin and brochure, featuring our range of compact high-performance arrestors. Whether you are working on a new design, or trying to retrofit something onto an existing one…these ultra-small options are ideal for any application where size is a critical design factor.
Instead of trying to add some (likely inadequate) transient protection on-board, or having to go all the way to a traditional external arrestor mounted somewhere on the cable run…It is now possible to integrate world-class protection against Lightning, Static (ESD) or High-Speed EMP into a bulkhead connector that will easily replace most existing I/O feedthrus!
With the wide array of connector options and frequency ranges available, you should be able to find a solution for any application. Learn more and download the new Product Bulletin by following the jump below;
We are happy to announce the release of our latest new content, an Introduction and Product Line Overview that will be useful for anyone who wants to learn more about our company, our product lines, and the individual solutions that we offer.
Covering both our Coaxial Lightning Arrestor and High Current EMI Filter product lines, all of the EMC-related threats that we help to protect against, and each individual product line and technology…this is a complete introduction to NexTek in a single presentation!
Find the new Presentation HERE
Learn More and Explore More Resources HERE
Special Announcement – PTC-F02 Design Revision and Updated Datasheet
For those customers who are currently using or considering the use of our 75Ohm F Type Arrestor [P/N PTC-F02], we have an updated datasheet and drawings to share with you!
Up until recently, the PTC-F02 has been one of our oldest designs. Developed in partnership with a large Internet Service Provider in the 1990s, this unit provided cutting-edge performance for the time and remains the highest performing F-Type lightning arrestor available. However, we wanted to incorporate some of the modern design and manufacturing techniques that we have developed since this unit was first made, and as a result we have given it a complete revision and update.
All outer dimensions are generally the same, and all of the specific thread sizes and diameters remain identical to the original. In other words… you will not notice a difference, and instead you will continue to experience class-leading protection and performance for 75Ohm TV/Cable/Satellite or Intermediate Frequency (IF) line applications.
Check out the updated datasheet below!
This week’s featured article is a Technical Article previously published in Interference Technology magazine. This in-depth article contains details and information about providing Lightning and Surge protection for coaxial and RF applications operating in the 4 to 6GHz range.
The widely used Public Safety (4.9GHz), UNII (5.6GHz), and ISM (5.8GHz) band applications all operate within this frequency window, so there are a multitude of applications and users around the world.
High-Frequency applications within this range can be treated different in terms of the Protection Design and Technology used on this type of system. For example, the relatively high frequency range means that Quarter Wavelength Stub arrestors are ideal protectors for any application where DC Pass is not required!
To learn more about what makes providing Lightning and Surge protection for high frequency coaxial lines unique, click through the Technical Article below!
Would you like to know more about performing Transient Testing on Gas Discharge Tube based arrestors? More specifically, testing arrestors against the common Lightning-derived industry-standard 1.2×50µs/8×20µs Voltage/Current Waveform using commonly available equipment to 6kV/3kA surge current levels.
The 1.2×50µs/8×20µs standard is meant to replicate conditions and energy levels that you can expect during an Indirect Lightning Strike, i.e. one where there is a nearby Lightning strike but without any direct attachment to the cable being test. These are also known as Induced or Coupled Lightning transients, because the lightning energy does not need to direct connect or attach to the coaxial cable’s center conductor for that conductor to be carrying Lightning surge energy.
If you’d like to learn more about how to perform this testing, and even some insights about how a Gas Discharge Tube responds to this type of transient event… check out the brand-new Technical Note/White Paper posted today!