Quell is renowned for its innovative solutions in electromagnetic interference (EMI) management. Our signature product — EESeal® — has for years contributed to the operational integrity within the military and aerospace (Mil/Aero) sectors. EMI filter inserts for standard connectors have proven vital for ensuring reliability and achieving compliance in mission-critical environments where failure is not an option.
EMI poses significant risks in military and aerospace operations, disrupting communication and navigation systems which can compromise both safety and data integrity. In these high-stakes situations, robust EMI filtering is not just a precaution but an essential design component. New military and aerospace applications face the most stringent industry standards around interference issues.
Fortunately, Quell offers a range of flexible and industry-compliant solutions to achieve these high benchmarks.
EMC Standards and Compliance in Military and Aero
The Mil/Aero industry is governed by a set of rigorous electromagnetic compatibility (EMC) standards, chief among them being MIL-STD-461. This protocol outlines the mandatory requirements for the control of electromagnetic interference characteristics of subsystems and equipment. Compliance with MIL-STD-461 tests whether military equipment is capable of performing its operational functions without experiencing or emitting undue levels of electromagnetic interference to surrounding systems.
MIL-STD-461 addresses the risks associated with EMI both at the component and platform levels. It specifies testing methods for both emissions and susceptibility. New equipment must operate effectively in the electromagnetically polluted environments typical of modern military operations. These standards are particularly stringent because the equipment used in these contexts must withstand extreme conditions without failure.
For product designers and engineers, this means meticulous attention must be paid not only to the electrical design but also to the physical integration of EMI filters and shielding. Components like the EESeal connector insert must not only meet these high electrical performance standards but also fit physically within the unique configurations of military gear, often with little modification of the original design. This dual requirement of electrical efficacy and physical compatibility makes designing for Mil/Aero applications especially challenging.
The Quell Customized EMI Filter Advantage
What sets Quell apart is its ability to tailor the EESeal filter inserts to the specific needs of any Mil/Aero project. Filter inserts can be adjusted to specified connector dimensions and made to target various electronic functions, modulating resistance, voltage, or capacitance pin by pin. Quell’s made-to-order solutions ensure that each insert meets the high bar of military standards and fits seamlessly into existing systems without extensive modifications.
Quell’s track record in defense and aerospace speaks volumes. For instance, in a recent deployment, EESeal filter connectors were integrated into the avionics systems of an aerospace platform, resulting in enhanced signal clarity and reduced maintenance downtimes.
The EESeal has been employed to protect extremely sensitive and space-constrained precision circuitry in satellites, requiring a custom version to meet NASA outgassing and 24-hour post bake specifications.
This video provides the details of this application, as well as three additional examples of how custom EMI filter inserts delivered rapid, robust solutions for mission-critical projects.
Numerous success stories underscore EESeal’s capability to resolve EMI challenges effectively, with testimonials from field engineers and project managers affirming their trust in Quell solutions.
EESeal Filters Integrate into Existing Military and Aerospace Systems
Incorporating EESeal filter inserts into existing Mil/Aero connectors is straightforward. Detailed guides are available on the Quell website, providing step-by-step instructions on installation, ensuring effective EMI mitigation, and minimal maintenance.
Filter inserts are miniaturized circuits embedded in silicone that slip securely onto the pins of standard military and aerospace connectors — the ones already slated for your project. This means problematic interference frequencies can be attenuated with no costly PCB re-design. Samples of these inserts can be quickly customized and shipped within 24 hours for use in prototype testing yet are also durable enough to function over the lifetime of the final product — even in the extreme operational environments of Mil/Aero applications.
For those looking to enhance their systems’ EMI resilience, Quell invites you to reach out for a consultation, a free custom sample, or to learn more about our EESeal capabilities.