Electromagnetic Components for Mission-Critical Applications

ECI designs and manufactures custom passive magnetic components for mission-critical applications. From U.S. and European facilities, we engineer custom transformers, inductors, planar magnetics, and antenna coils that perform in the most demanding aerospace and defense, medical, and industrial environments. Founded in 1947, ECI has built its reputation on engineering depth, response speed, and a commitment to getting every component right — whether it’s destined for the International Space Station, a fighter aircraft, or a security screening system.

Featured Electromagnetic Components

Custom transformers

Transformers

From low-voltage signal transformers to high-power isolation designs, ECI builds custom transformers for the most demanding applications. Our capabilities span toroidal, planar, layered, and surface-mount constructions, with operating frequencies and voltages tailored to your specification. Each transformer is engineered for its end environment — whether airborne, shipboard, ground-based, or in orbit. Standard product platforms, modified designs, and fully custom solutions all available.

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Custom inductors

Inductors

ECI designs and manufactures custom inductors for power conversion, signal conditioning, EMI suppression, and energy storage applications. From low-frequency power inductors to high-current chokes, every inductor is engineered to your performance, geometry, and environmental specification. Toroidal, bobbin-wound, and surface-mount constructions available across a wide range of core materials. For high-frequency applications, see our RF inductors.

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RF inductors

RF Inductors

ECI’s RF inductors are engineered for the precision, repeatability, and stability that radio frequency applications demand. From communications and radar systems to test and measurement equipment, our custom-wound RF inductors deliver consistent Q, tight inductance tolerances, and reliable performance across challenging operating conditions. For lower-frequency applications, see our standard inductor line.

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Antennas and sensor coils

Antennas & Sensor Coils

ECI manufactures custom-wound antennas and sensor coils for security screening, detection systems, and precision sensing applications. Our extremely fine wire gauge capabilities allow us to deliver coils with the tight tolerances and consistent performance required by walk-through scanners, metal detection equipment, and industrial sensing systems. Every coil is wound, tested, and documented to your specification.

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Planar magnetics

Planar Magnetics

Planar magnetics deliver high-density power conversion in a compact, thermally efficient package — making them essential for modern aerospace and defense and high-power industrial systems. ECI designs custom planar transformers and inductors optimized for SWaP (size, weight, and power), thermal performance, and harsh-environment operation. We engineer to your power, frequency, and isolation requirements from the ground up.

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Space magnetics

Space Magnetics

ECI has been engineering magnetic components for space applications for decades. Our parts have flown on the International Space Station, NASA’s Orion program, and numerous communication, weather, and military satellites — performing reliably in the most extreme environment there is. From cooling-system devices to flight-critical power magnetics, every space component is designed to survive launch, vacuum, radiation, and thermal cycling.

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Markets We Serve

Aerospace & Defense

From fighter aircraft to satellite communications, ECI supplies custom magnetics for the U.S. and allied defense industry. Our components meet the certifications and program requirements demanded by aerospace OEMs — and they’re engineered to survive the conditions those programs operate in. Heritage spans avionics power, space magnetics, and ground-system applications.

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Industrial Automation

ECI’s custom magnetics enable the power conversion, motor control, and signal isolation requirements of modern industrial automation systems. We engineer transformers and inductors for reliability in high-cycle, high-temperature, and electrically noisy industrial environments.

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Medical

ECI manufactures custom magnetic components for medical imaging, diagnostic, and therapeutic equipment. Tight tolerances, traceable manufacturing, and reliability under continuous operation are non-negotiable in medical applications — and they’re standard practice at ECI.

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Security

From walk-through metal detectors to advanced screening systems, ECI’s custom-wound coils and magnetic assemblies are critical to security infrastructure. Our fine wire gauge capabilities and tight performance tolerances enable the detection accuracy security applications require.

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Sensing

ECI’s precision-wound coils and custom magnetic components serve a broad range of industrial, medical, and defense sensing applications. We engineer to your specification — including specialized geometries, materials, and performance characteristics. See our full line of antennas and sensor coils.

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Marine

Saltwater, vibration, and continuous duty cycles define marine environments — and ECI engineers its components to handle them. Custom transformers, inductors, and magnetics for marine power systems, navigation, and communication.

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Why ECI

For more than 75 years, ECI has been the engineering partner of choice for organizations that can’t afford a magnetic component failure. Founded in 1947 (CAGE code #00204), we’ve built — and retained — the engineering depth, manufacturing precision, and customer focus that mission-critical work demands.

ECI remains focused on what we’ve always done: custom electromagnetic components, engineered for the application. With a reference library of more than 20,000 designs and decades of program experience, we move from requirement to prototype quickly — and we stay involved through production and beyond.

Our components are on the International Space Station. They’ve flown on Orion. They’re inside the radar, communications, and power systems that keep aerospace and defense customers operating in the most demanding environments on — and off — Earth. See our full space magnetics heritage.