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.
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
Resources Page – Where to Find Additional Technical Papers, Articles, etc.
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.
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.
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!
High Current Pi Filters – Home Page
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!
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 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.
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.
Medical Devices – Industry Page
HPR Series EMI Filters – Product Page
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.
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!
See the gallery below:
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.
If 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:
Visit our Domestic Reps and Distributors page for more information:
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:
NexTek Arrestors and Filters are used to address DO-160G EMI and Surge Protection Requirements, respectively.
We 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
We 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.