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.



Did You Know NexTek Is Fully ITAR Registered and Compliant?

Here at NexTek we have been ITAR-registered with the Department of State and their Directorate of Defense Trade Controls [DDTC] for well over 15 years. This means that we are fully compliant with Export Regulations and able to apply for licenses to export information or products as warranted.

We are proud to employ a dynamic team of U.S. Citizens, and we take security seriously for every project and solution we get involved with. Starting as an EMC consultation company over 30 years ago, our company and team of experts have been providing Surge Protection and EMI/RFI solutions into the Military and Government space from the very beginning.

Whether or not you need something special or that might be ITAR restricted, you should be able to feel confident that we have the experience, expertise, and knowledge to deal with any set of requirements that might come along.


Learn More About NexTek Regulatory Compliance



Lionheart Northwest Joins the NexTek Sales Team – New Rep Coverage for the Pacific Northwest!

Once again, we are excited to be able to announce a new local sales representation partnership…  This time providing full technical sales coverage in the Pacific Northwest states of Washington, Oregon, and Idaho.

Learn more about Lionheart by visiting their website here (click the logo below!)

And to learn more and see our entire list of U.S. partners including a map of coverage, visit our Domestic Reps and Distributors page.

 



Coming Soon To Our Lineup… A High Current Pi-Filter (C-L-C) for Maximum EMI Suppression

We have been designing and building feedthrough EMI Filters for high current (30Amps and above) AC and DC applications for nearly 30 years now. There have been multiple design iterations and some important innovations over this time period, but our filter products have been limited to C-Type filters only.
However, this is all about to change! Coming soon, we have a brand-new Pi Filter design for high-current applications. C-L-C Circuit Design means a sharper Insertion Loss curve once the filter turns on, and higher maximum filtering figures approaching 100dB of Loss.


A Small Preview of Design Features:

  • C-L-C aka Pi Filter Configuration
  • Extremely Compact Package for 180Amperes of Thru-Current
  • Available in a Wide Range of AC and DC Voltage Ratings
  • Optional Transient Suppression Available


Expect to learn more over the coming months as Datasheets, Product Pages, and more information will be available soon!


Did You Know? – NexTek EMI Filters Are Used In Medical Equipment to Prevent Unwanted Electrical Interference

Where Are These Filters Used?

High Current EMI Filters are commonly used on high power feed lines within MRI Machines and high-power Medical Lasers, in order to prevent any electronic interference issues and provide full Electromagnetic Compliance to common Medical Equipment regulations.EMI Diagram - CC0

EMI Filters can be required on the Noise Source or the potential Noise Victim, and sometimes are installed on a certain line for both reasons!  A filter installed on a properly shielded barrier will provide fully bi-directional protection.

What Types Of Medical Equipment?

In terms of devices that are likely to have a high-current connection and EMC requirements…MRI Machines and Medical Lasers are the most common types that might require a high current filter.

MRI - CC0

What Makes These EMI Filters Effective For the Application?

Our HPR Series filters are the Most Compact units available for their current ratings, and combined with Excellent Filtering Performance and an especially Rugged Design they are ideally suited for any high-current DC or AC filtering application.   Medical equipment is subject to some of the most stringent EMC requirements of any industry, mostly because in most medical facilities there is a lot of equipment operating in close proximity with each other.  Combine the crowded environment with the fact that people’s lives may be on the line when this equipment is being used, and you have the perfect explanation for the tough EMC requirements.

Heart Rate Monitor - CC0


Learn More

Medical Devices – Industry Page

HPR Series EMI Filters – Product Page



Did You Know? – NexTek Filters Enable EMI Compliance for Fixed, Mobile, and Airborne Radar Systems

Today’s Featured Application and Did You Know? topic covers NexTek HPR series power filters and the fact that they are used in radar power supply systems around the world.  We have EMI filters installed in fixed ground, land and sea mobile, and also airborne radar systems to help enable compliance with applicable EMI and RFI requirements at the system-level.

See below for an example of a ground mobile radar system where HPR series filters could be used, usually mounted within the Power Supply sub-system.

Radar-CC0


Unique Features that make HPR Series Feedthrough Power Filters ideally suited to these applications;
  • Robust and Rugged Design – High Performance in any Environment
  • Compact Size and Form Factor – Save the Maximum Amount of Space and Weight
  • Filtering Performance to 1GHz+ – Exceptional High Frequency Filtering Performance
  • High Reliability Units Available – Burnt-In Units for Maximum Reliability

No matter what type of radar system is being designed, NexTek HPR Series EMI and RFI filter solutions for power lines are uniquely suited for the challenge!

Learn more about HPR Filters.

Learn more about What We Do here at NexTek


See the gallery below:

 


Our Sales Team Continues To Expand! – Spartech South Announced as NexTek’s Sales Representation for the Southeast US

We are extremely proud to announce that NexTek has formed another new partnership for 2016, a Sales Representation agreement with Spartech South to cover the Southeastern states ranging from North Carolina all the way to Mississippi and including Florida and Tennessee as well!

Spartech South will cover Region 3, shown on the updated map below in Yellow.

US_states_and_territories_ - NT Reps MapIf you would like to know more about NexTek or our solutions for Lightning and Surge Protection of Coaxial/RF lines or High Current Feedthrough EMI filtering, please feel free to contact your local/regional Representative directly, or simply get in touch with us directly and we will guide you to the correct local contacts!

Once again, we are proud to announce that Spartech South has joined our team… We look forward to helping them serve the area that sees the most Lightning Strikes and Thunderstorms out of anywhere in the United States!


Click through to Spartech South’s website:

Spartech South Logo

 

Visit our Domestic Reps and Distributors page for more information:

Rep and Disty Graphic


 


Did You Know? – NexTek Enables Compliance with DO-160G Avionics and Aircraft Equipment Standards

The DO-160 Series (currently DO-160G) regulations regarding Avionics cover a wide range of test requirements that every piece of certified Avionics equipment must comply with.  With the range of requirements covered under this wide-reaching document, covering everything from Temperature Range and Vibration Ratings to EMI Susceptibility and Lightning Protection.  Learn more about DO-160 and it’s various subsections by following the Wikipedia link below:

Link: DO-160 Article on Wikipedia

NexTek Arrestors and Filters are used to address DO-160G EMI and Surge Protection Requirements, respectively.


Airliner Taxiing - High Res - DO-160We have Coaxial Surge Protection solutions ranging from standard Off-The-Shelf to modified or fully custom for the following subsections;

  • Section 17: Voltage Spike Transients
  • Section 19: Relay Switching Transients
  • Section 22: Lightning Transients
  • Section 25: ESD [Static] Transients

 


Airliner Landing - CC0 - DO-160G EMIWe also provide EMI Filter solutions ranging from standard Off -The-Shelf to modified or fully custom for the following DO-160G sections;

  • Section 18: Audio Frequency Conduced Susceptibility
  • Section 19: Induced Signal Susceptibility
  • Section 20: Radio Frequency Susceptibility
  • Section 21: Emission of Radio Frequency

 

 


If you are looking for assistance, guidance, or solutions for any of the DO-160G requirements listed above…NexTek has the experience, expertise, and product range to help you find the perfect solution.

Trust the Experts, NexTek has 30 Years of experience designing and providing Transient and EMI protection solutions for customers and applications around the world.


Learn More:

Coaxial Surge Arrestors

High Current Filters

Aerospace/Airborne Electronics