PGT End of Line Notice



Dear Valued NexTek Customer,

This notice is to inform you that NexTek’s PGT Series Lightning arrestors will be discontinued at the end of the Calendar Year, 2021.  We have limited available inventory to satisfy some requirements.


Affected Models:


Part Numbers

Product Description End-Of-Life Date


DC Pass High RF Power Surge Arrestor with

7/16 DIN connectors, 0.82 – 2.2GHz



Product Replacement:


Part Numbers

Product Description End-Of-Life Date
None N/A N/A



NexTek’s objective is to assist you to make your final purchases of the above products which are subject to EOL. We understand this EOL can be an inconvenience, and we look to make this a smooth changeover or developing an alternative solution to the affected products with the least amount of disruption possible.


For any additional information please contact your local sales representative or email us directly:

Company Update – June 2021

NexTek, LLC. Update – June 2021

NexTek, LLC. is looking at the summer months ahead with cautious excitement. The past year and a half was a challenging time for everyone, but there are clear signs that life is getting back to normal. The team at NexTek banded together to navigate this difficult period, and now we are feeling optimistic and confident about the future.

Our excitement and optimism is in part due to new products our team has researched, designed, and manufactured. We’ve innovated in areas such as 5G applications, Band Pass and Fail Safe Filters, and more. We are looking forward to showing off these new products. You can stay up to date on all of our latest news and product releases by regularly checking our website and following us on LinkedIn.

A lot has changed in a short period of time, but NexTek’s commitment to excellence has not. We’ve been providing premier RF Surge Protection and High Current EMC/EMI Filter solutions for over 30 years, and we’re looking forward to presenting the latest developments we’ve made. 2020 was a challenging year but showed the great strides that we can make when we all work together. All of us at NexTek are looking forward to an exciting, active, and healthy remainder to 2021.

NexTek – COVID-19 Update

March 20, 2020 (Updated 3.25.20)

COVID19 update from NexTek

[link to .PDF]


NexTek operations remain at substantially full capacity through this health emergency.  We have staff working from home as much as possible, but also retain full manufacturing capacity.  Our Sales and Engineering operations remain available to assist you.
As an essential business that serves multiple U.S. Government and Military Industrial Base customers, NexTek will continue to stay open and maintain operations at a level that is close to normal.  We are taking the necessary precautions to protect and support our workforce throughout this difficult time.
We have adequate inventory, and our supply chains are intact, although some additional lead time might be required for (new orders of) a few products.  If you have large volume needs, unique products designed for your application, or time critical delivery requirements, please contact NexTek with your forecast.  We can make a detailed delivery estimates for your needs.
As the situation develops, NexTek will continue to keep Clients, Customers, and Suppliers up-to-date.
We hope everyone stays safe throughout this event.
The NexTek, LLC Team

New Product: Band Pass RF Filters for Positive Train Control, and Other RF Networks

NexTek, LLC. has been a World-Class leading designer, developer, and manufacturer of standard and custom coaxial surge protectors and high current AC/DC EMI filters for Commercial, Medical, Avionics, SATCOM, Power Supply, Military and Government markets for over 30 years, and proudly announces a new product series for immediate release.

The “BPF Series” is a band pass filter specifically designed for railroad positive train control, PTC networks.  These units provide optimum filtering; sharp cutoff and notched response characteristics.  These filters reduce or eliminate unwanted interference from co-located radios, internal (on-board) or external, to increase the system’s reliability.   NexTek’s filter solutions incorporate a bandpass filter with Type N connectors centered at 160, 220, 460 & 900 MHz.

In addition to providing high performance filtering to remove unwanted RF Energy from a coaxial line, these filter designs also incorporate high performance surge/lighting protection within the same package.  This type of combination solution will ensure that two types of unwanted energy are not allowed to pass freely by the NexTek BPF Series of Bandpass Filters w/ Integrated Lightning Protection.

These new products further demonstrate NexTek’s commitment to growth and innovation while maintain and delivering the highest quality products to our customers.

For additional information please contact your local sales representative, or get in touch with us directly!

Press Release [.PDF]

Datasheet Links [.PDF]

BPF 160 – 160MHz Pass Band

BPF 220 – 220MHz Pass Band

BPF 460 – 460MHz Pass Band

BPF 900 – 900MHz Pass Band

New White Paper – Using C-Type and Pi-Type EMI Filters for MIL-STD 461G, CS116 Compliance

We have posted a brand-new Technical White Paper, which can be found in our Resources Section.

This White Paper covers some basic information about how C-Type and Pi filters can be useful in providing protection against MIL-STD 461G, CS116 transient requirements.  The relevant transient injection requirements involve high-energy 1, 10, and 30MHz ring waves being applied to DC and AC power lines (or other conductors) and the DUT and Equipment being protected should survive with no damage.

Example Test Setup – MIL-STD 461G, CS116

EMI Filter Capacitors can provide excellent protection against this type of threat, and when properly integrated into an overall EMI/Transient-compliant design (with Limiting or other Filtering components) they should allow for full compliance to CS116 requirements.

Link to Paper

View or Download “EMI Filters used for CS116 Protection” White Paper

Resources Page – Where to Find Additional Technical Papers, Articles, etc.

NexTek Announces New Product – Type N Sampler Port

Westford, MA – – NexTek, LLC. has been a World -Class leading designer, developer, and manufacturer of standard and custom coaxial surge protectors and high current AC/DC EMI filters for Commercial, Medical, Avionics, SATCOM, Power Supply, Military and Government markets for over 30 years, and proudly announces a new product series for immediate release.

The “RF Sampler” is a valuable device for monitoring RF Signals, carrier RF imbalances and power outs, noise, and interference. Ideally, the device should be integrated permanently into the cable run, so that it can quickly assist with troubleshooting should the need arise. This unit can also be utilized while passing DC on the center pin. Because the monitoring device is permanently mounted, it allows a technician to easily diagnose many cell-site issues without interrupting service.


  • Type N Connectors – Male to Female

  • DC – 3.0GHz Pass

  • Integrated SMA Sampler Port for Safe Measurements

    • Measure Signals During Radio System Operation @ -38dB between 700-900MHz
    • Measure Signals During Radio and System Operation @ -30dB at 2.0GHz

This new product further demonstrates NexTek’s commitment to growth and innovation, while maintaining and delivering the highest quality products to our customers.

For additional information please contact your local sales representative, or get in touch with us directly!


SAMPLER Datasheet (.PDF)

Sampler Press Release (.PDF)

New Line of COTS DO-160G Avionics Protection for RF Lines

NexTek is proud to announce the release of a new line of standard products, engineered specifically to protect Coaxial RF lines and systems against Lightning Damage as required to meet DO-160G, Section 22.

Available in a variety of pass bands, packages, and with multiple connector options; these designs are based on years of experience providing solutions to the Aerospace and Avionics sectors.  When compact size and light weight are critical, but effective and serviceable/replaceable protection is required;  The FPD series of lightning protection devices can meet all of these performance points, in a highly reliable and robust package.


Example FPD Package


Standards Met

D0-160G, Section 22 – All Waveforms and Test Levels

MIL-STD 461G, CS 117 – All Waveforms and Test Levels

Options Available

Connectors – Type N, TNC, SMA, 2.92mm, MCX, MMCX, and others available

DC Power – DC Pass or DC Short/Block Options available

Frequency – Pass Bands between DC and 18GHz available, across the entire range of designs (not within a single design.)


FPD Series Family Page

FPD Series Family Datasheet (.PDF)

DO-160 Avionics Protection – Industry Page

NexTek Company Outing – Mini-Golf and Ice Cream at Kimball Farm!

In order to celebrate the people who have supported and allowed our company to grow and thrive, the entire NexTek team was treated to an afternoon out at Kimball Farm in Westford in early October.  Here are some quick details!


  • Pizza Lunch @ NexTek

    • While not uncommon, this Pizza Lunch was special because it fueled the team up prior to our afternoon activity…


  • Mini-Golf Tournament @ Kimball Farm

    • 17 Team Members squared off in Miniature Golf, on one of Kimball Farm’s two courses.


    • After a fearsome battle, there emerged a single winner;  Dena claims the prize for winning!

NexTek Team - Post Mini-Golf
NexTek Team Photo


  • Ice Cream!!

    • Following our round, we all enjoyed some well-earned Homemade Ice Cream from Kimball’s, after a long day of battling it out on the “links.”

Kimball Farm Ice Cream {Credit Kimball Farm}


It was a great day overall, and we know that our team will allow us to plan many more Outings and Celebrations over the coming years!!


Kimball Farm – just down the street from NexTek, in Westford, MA


NEW RELEASE: Wideband Lightning Protection – DC to 12.5GHz with Type N Connectors

NexTek is proud to announce the availability of a new ultra-wideband surge protection device for Radio and RF communication systems. With a compact design, an extremely wide pass band, and the ability to pass DC power in addition to RF energy this unit is well-suited for a multitude of bands, applications, and systems that require high-performance lightning protection in a compact package.


  • Wideband – DC to 12.5GHz
  • Compact – Ultra-Small Footprint
  • Robust – High Performance Gas Discharge Tube
  • Weatherproof – IP68 Dust and Waterproof
  • Value – Perfect for a wide array of uses, at a good value

The PTCONMONF20G [male-female] and PTCONFONF20G [female-female] units provide a single device that can be used to protect most RF Applications with a single solution.  This should allow users with a wideband or multi-band system, or users who have a wide variety of pass bands available across their products or systems, to use a single arrestor and reduce P/Ns, stocking costs, etc.

This unit is also perfect for users who need Type N protection but have no room to add a bulky arrestor.  In this case, simply replace a normal un-protected feedthrough connector with this protected version…and you’ll have integrated high-performance lightning and surge protection with virtually no space or weight penalty!


Product Page (datasheets can be found here)


Contact NexTek or your local NexTek Partner directly for more information, samples, and a quote!

As we continue to expand our product offerings, look out for more new Product Releases!


June MTT-S Show in Boston – See Lighthouse’s Amazing Booth!

June 2-7, 2019 in Boston’s Seaport District – In June, NexTek helped to support our local Technical Sales Partner covering New England [Lighthouse Technical Sales out of Nashua, NH] who exhibited at the IMS MTT-S Show.  When the image of a normal Technical Trade Show Booth comes to mind, you might imagine a “normal” booth with a few products, maybe some neat branding, and a few smiling sales folks…admittedly, most booth setups are not the most exciting or innovative things!

IMS 2019 Boston – @ Boston Convention Center

However, Larry Knight, the president and owner of Lighthouse Technical Sales is a dedicated hobbyist who has found a unique way to tie those hobbies directly into his work and trade show booth itself!  It has been about 5 years in the making, and a slow process along the way, but the Lighthouse Model Train setup is a wholly unique solution the age-old question “How do we attract attention and people to our booth to be able to start conversations, without seeming to sell too hard or scaring folks off with technical details off the bat?”


As you can see, the booth attracts a buzz from almost everyone at the show… We received constant requests to “take a photo for my kids/nieces/nephews/etc.” even from folks who were not personally into trains, models, or the overall military theme.

One of the best parts about this attention is that the train setup provides an entry into real application-related discussions, as most of principals that Lighthouse represents have parts and ongoing activity on many of the platforms and programs represented on the board!  This leads to effective and interesting conversations off-the-bat, with the opportunity to discuss technical details quickly if the conversation heads that way.

Check out the IMS 2019 official Video below featuring the Lighthouse Technical Sales booth, where Larry has a good chance to explain the concept, the models, and provide more details on the work involved!  The Lighthouse booth is well-known around the show to anyone who has attended for multiple years, and they regularly get featured by IMS as a top booth during each show.  It happened again this year, and we have this wonderful video to share as a result!


Thanks to Larry, Keith, Greta, and Vincent from Lighthouse for allowing us to support such an awesome booth and partner!!

We had a blast!  Just don’t ask how long it takes to setup and break down : )