Certified High-Performance Hardware for Industrial, Defense, Telecom & Maritime Applications
As French industrial sectors undergo rapid modernization under the national "France 2030" reindustrialization initiative, managing electromagnetic compatibility (EMC), high-frequency signal integrity, and power quality has become a foundational baseline for Original Equipment Manufacturers (OEMs) and system integrators. Operating within France's electrical grid—overseen by Enedis and RTE—demands rigorous adherence to European Commission directives, CE marking frameworks, and international Electrotechnical Commission (IEC) standards such as IEC/EN 61000-3-12 (harmonic current emissions) and CISPR 32 / EN 55011 (radio disturbance characteristics).
Our engineering matrix specializes in design, prototyping, and large-scale manufacturing of high-reliability passive filter architectures. Unlike active filtering solutions that introduce complex control loops, semiconductor switching losses, and software overhead, passive filters leverage precision tuned inductors (chokes), high-Q capacitors, and optimized ceramic or metal cavities. This inherent structural robustness yields near-infinite Mean Time Between Failures (MTBF), immunity to thermal runaway, zero software vulnerability, and superior energy efficiency across broad temperature ranges.
From custom RF Cavity Filters utilized in aerospace defense corridors across Toulouse and Bretagne to heavy-duty Three-Phase WYE and Delta EMI Filters integrated into automated manufacturing lines throughout Île-de-France, our facility serves as a primary supplier partner for French procurement engineering teams seeking high performance, fully certified supply chains.
Every industrial application imposes distinct mechanical, electrical, and thermal constraints. Our production facilities maintain dedicated fabrication lines for power line EMI filters, high-power harmonic reactors, RF/microwave passive filters, and specialized fluid handling passive screens.
Designed for variable frequency drives (VFDs), industrial automation cabinets, and heavy pumping stations. Modules like the PHF010 Series suppress 5th, 7th, 11th, and 13th harmonics, bringing Total Harmonic Distortion of Current (THDi) below 5% to comply with IEEE 519 and EN 61000-3-12 grid requirements.
Single-stage and dual-stage passive terminal filters (e.g., Fonyun FYLd-17N-100A-U and High-Power Low Pass EMI series) providing exceptional common-mode and differential-mode attenuation up to 100dB from 150kHz to 30MHz. Essential for CE compliance of machinery exported throughout the EU.
Precision-engineered ceramic bandpass, cavity filters, and surface acoustic wave (SAW) components (such as WINNSKY NDFG020 2442MHz and waterproof low-PIM metal cavity filters). Tailored for telecommunications infrastructure, radar signal isolation, and wireless broadcast systems.
In high-density French industrial zones (e.g., Lyon, Marseille, Lille), transient voltage sags and electrical fast transients (EFT) can trip sensitive programmable logic controllers (PLCs) and robotic arms. Our high-power passive line filters feature robust nanocrystalline magnetic cores that maintain linear permeability even under severe current overload conditions.
Our OEM passive filter solutions are designed to address the specific environmental, operational, and regulatory demands of key French market segments:
France’s rapid expansion of offshore wind farms along the coast of Normandy and utility-scale solar farms in Nouvelle-Aquitaine requires robust passive harmonic filtering at grid interconnection points. Solar inverters and wind turbine power converters generate significant high-frequency harmonics. Installing heavy-duty passive harmonic filters like the PHF010 series mitigates line side resonance, prevents transformer overheating, and ensures compliance with RTE grid entry codes.
Supplying defense contractors such as Thales, Airbus, and Naval Group demands absolute structural integrity and stringent military-grade filtering. Our customized Low PIM RF Cavity Filters and Tempest EMI Passive Filters are deployed in naval radar systems, military radio communications, and airborne avionics. These units feature waterproof IP67/IP68 enclosures, anti-corrosion marine-grade anodization, and extreme thermal resilience (-40°C to +105°C).
France’s extensive TGV high-speed rail network and municipal tramways operate on complex power conversion topologies. Passive filters installed on traction converters isolate electromagnetic interference from sensitive signaling equipment. Simultaneously, the proliferation of ultra-fast EV charging corridors along French autoroutes utilizes our 3-phase heavy-duty EMI filters to suppress conducted emissions back into the public low-voltage grid.
Industrial facilities along the Mediterranean and Atlantic coastlines, as well as French overseas territories (DOM-TOM), utilize our Large Size Seawater Desalination Filter Wedge Wire Passive Intake Screens. Constructed from duplex stainless steel or super duplex titanium alloys, these physical passive intake filters prevent marine life entrainment while ensuring continuous, clog-resistant raw water intake for RO (Reverse Osmosis) desalination plants.
Understanding the regulatory and technological shifts within the French market allows us to manufacture passive components that remain compliant throughout your product’s lifecycle:
The French energy transition law (Loi de Transition Énergétique) forces industrial plants to optimize power factor. Passive harmonic filters eliminate reactive power penalties, lower kVA demand, and reduce overall line losses by up to 12%.
As French telecom operators (Orange, SFR, Bouygues) roll out C-band 5G networks, co-located base stations face severe intermodulation issues. Low PIM (Passive Intermodulation) cavity filters are vital to maintain signal-to-noise ratios in dense urban hubs like Paris and Lyon.
French medical device OEMs upgrading to EU MDR requirements rely on our ISO 13485-certified single-phase passive line filters to achieve 2xMOPP (Means of Patient Protection) safety and ultra-low leakage current (<5 µA).
With over six decades of heritage in custom power magnetics and EMI attenuation (incorporating the engineering heritage of Astrodyne TDI), our facility provides an unmatched level of technical depth, reliability, and custom engineering capability.
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We do not simply assemble off-the-shelf components. Our engineers synthesize proprietary magnetic core formulations, manufacture custom copper windings, and design optimized filter enclosures tailored to your mechanical footprint.
Technical guidance to assist French engineering teams in selecting, specifying, and sourcing the optimal passive filter technology.
A Delta passive filter is designed for 3-wire three-phase electrical systems without a distributed neutral wire (common in heavy industrial motor drives and isolated transformers). A WYE passive filter is intended for 4-wire three-phase systems that include a neutral conductor. Selecting the correct topology is critical: installing a Delta filter on a system requiring line-to-neutral filtering leaves common-mode noise unattenuated and risks premature filter saturation or CE testing failure.
European Standard EN 61000-3-12 dictates allowable harmonic current limits for equipment connected to public low-voltage systems with input currents >16A and ≤75A. Our passive harmonic filters combine precisely tuned L-C network branches that present a low impedance path specifically to the 5th, 7th, 11th, and 13th harmonic frequencies. By absorbing these currents before they reflect back to the main supply transformer, THDi is reduced from typical raw drive levels of 35-45% down to under 5%, easily passing French utility requirements.
Yes. A substantial portion of our factory output consists of modified standard or fully custom designs. We can alter mounting flange geometry, connector types (e.g., SMA, N-type, 7/16 DIN, terminal blocks, wire leads), IP-rating encapsulation (epoxy potting or conformal coating), and exterior housing materials (aluminum, stainless steel, nickel-plated steel) without requiring massive NRE (Non-Recurring Engineering) charges or excessive lead times.
Passive Intermodulation (PIM) occurs when high-power RF signals mix in non-linear passive components (such as poorly plated connectors, oxidized junctions, or sub-standard cavity surfaces), generating unwanted interference signals within adjacent receiver bands. For French 5G and defense wireless infrastructure, our Low PIM Passive RF Cavity Filters are built using precision machining, silver-plated internal resonators, and non-magnetic materials, guaranteeing PIM levels better than -155 dBc to preserve receiver sensitivity.
Wedge wire passive intake screens rely on hydrodynamic design. Continuous V-shaped wire profiles are welded around internal support rods to form precise slot openings (e.g., 0.5mm to 3mm). Water flows through the slots at an extremely low through-slot velocity (<0.15 m/s), which allows ambient water currents to sweep debris away from the screen surface while preventing marine organism entrapment. Because there are no moving mechanical drives, maintenance cost is virtually zero.
Standard catalog samples and evaluation prototypes are typically dispatched within 1 to 2 weeks. Full-scale production batches carry standard lead times of 4 to 6 weeks depending on component customization. We support DDP (Delivered Duty Paid) shipping to major French industrial regions including Paris, Lyon, Marseille, Toulouse, and Nantes, complete with CE certificates of conformity, RoHS/REACH compliance documentation, and full factory test reports.
Whether you require standard off-the-shelf EMI filters, custom RF cavity modules, high-power harmonic reactors, or seawater intake screens, our application engineers are ready to review your schematics and mechanical constraints.
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