High Power

A transformer’s function is to change the entry current/voltage level to another level while keeping the same power.

Electrical Functions

• Voltage transformation : V1 → V2 
• Isolation
• Measurement

Example : 

SMPS Transformers : Flyback, Forward, Push Pull, Half Bridge, Full Bridge, Dual Active Bridge, LLC transformers.
Pulse Transformers

• Gate Drive Transformers

• Data Bus 1553

   

Current  Transformers

Multi Pulse Transformer for “400Hz” Power Supply 
50/60 Hz Transformer for Niche Markets
 

Cleaning procedure 

The cleaning of the PCB boards is evolving from solvent (as isopropylic alcohol,...) to highly alkaline water based cleaning medium. EXXELIA has performed an extensive study to offer robust technologies to withstand these current cleaning processes. The qualification procedure has included thermal shock, burn in and mechanical testings. EXXELIA has defined gluing, marking, varnishing processes that allow the products to go through more than 5 cleaning cycles and operating up to 180°C. 

Processes compliant to ESA and NASA outgassing standards have also been defined for products specified up to 140°C. 

Wire integrity 

EXXELIA has qualified specific processes to ensure wire integrity for better insulation. The wire undergoes mechanical, chemical and thermal stresses during the winding and cabling process steps. EXXELIA has set up a dedicated process to reduce the impact of these manufacturing steps and improve the overall reliability of the wires and products. 

Finishing 

EXXELIA offers several types of components: Surface Mounted Device, Through Hole or lead terminations products, system integrated components. 

Packaging 

Products are available on trays and, upon request, on reels for easy pick and place, ESD compliant EXXELIA products offer components compliant to IPC/JEDEC standard J-STD- 020 with TP = 260°C and tP = 30 seconds. 

Toroidal magnetic core primary purpose is power conversion in electronic applications as inductors, common modes chokes, power transformers, current or voltage measurement transformers, gate drive transformers, ... There are three types of soft magnetic cores: powder cores, ferrite cores, and tape wound cores.

Powder Core: 

• Distributed air gap cores with high resistivity, low hysteresis and eddy current losses, excellent inductance stability DC and AC current 
• Primarily used in power inductor applications,differential inductors, boost inductors, buck inductors, and flyback transformers. 
• Main materials used: Molypermalloy (MPP), High Flux, Kool Mµ®,... 

Ferrite cores: 

• Low losses at high frequencies, 
• Low cost and wide variety of available shapes and sizes 
• Extensively used in switched-mode power supply (SMPS) and radio frequency (RF) transformers, inductors and common mode chokes. 
• Uncoated, epoxy or parylene coated 
• All available materials are used 

Tape wound cores

• Higher B (saturation flux density) 
• Design can be smaller 
• Primarily used for common-mode chokes, current measurement transformers, power transformer,... 
• Materials: nickel-iron alloys, grain oriented silicon steel, amorphous materials or nanocrystalline,...

Exxelia is certified EN 9100, a quality standard specific to the aerospace, space, and defense sectors. Our facilities are also ISO 9001 certified (quality management), and some are certified ISO 13485 for medical devices. Other industry-specific standards, such as NADCAP or AQAP, may also apply depending on the products and markets.

The EN 9100 standard ensures a rigorous quality management system tailored to the critical requirements of the aerospace, space, and defense industries. It is required by major OEMs such as Airbus, Safran, Thales, or CNES. This certification guarantees product traceability, risk management, and compliance with international standards.

Yes, some of our facilities are ISO 13485 certified, the quality standard for medical devices. This certification enables Exxelia to design and manufacture components (such as coils, sensors, or capacitors) used in high-reliability medical equipment, including MRI scanners, ventilators, and imaging systems.

The railway industry demands durability, reliability, and long service life. While a dedicated certification like EN 9100 is not required, Exxelia applies IRIS standards and complies with IEC/EN regulations specific to railway applications. Our quality processes ensure component compliance for trains, metros, and tramways, including fire safety and electromagnetic compatibility.

Yes. Exxelia meets defense industry requirements through its EN 9100 certification and compliance with military standards (MIL-STD, STANAG). Our components are qualified for critical applications such as RF systems, embedded electronics, guided munitions, or radar systems. Some products are also subject to customer-specific qualification procedures.

Exxelia SVM provides a wide portfolio of magnetics components, including high-frequency transformers, SMPS transformers, linear power transformers, inductors & chokes, reactors, current transformers, and custom magnetics—covering both high- and low-frequency applications.

Exxelia SVM develops fully custom magnetics, offering in-house tooling, MATLAB/FEMM modelling, special core designs, Litz wire constructions up to 350 A, and complete solutions from prototype to packaging.