Mission JUICE vers Jupiter : Les composants Exxelia prêts à résister aux conditions extrêmes de l'espace

Le 14 avril 2023, la mission JUICE (JUpiter ICy moons Explorer) décollera pour explorer les lunes glacées de Jupiter. C'est un événement incroyable qui est attendu depuis longtemps par les passionnés d'astronomie. Mais saviez-vous que des composants d’Exxelia sont à bord de ce satellite ?

Exxelia est réputée pour la qualité et la fiabilité de ses produits, ce qui en fait un choix populaire pour les missions spatiales.

Les composants Exxelia sont utilisés dans de nombreux systèmes embarqués à bord de la mission JUICE, notamment les condensateurs (High Voltage C Series X7R & TCK Series X7R, CEC Series NP0, Polyester PET PM 948) et les magnétiques (Inductances MPCI, CMC, SESI inductance, Common mode choke et des transformateurs sur mesure). Ils ont été soigneusement conçus et testés pour résister aux conditions extrêmes de l'espace.

Exxelia travaille en étroite collaboration sur ce projet depuis plus de 10 ans, notamment sur les instruments GALA (Altimètre laser)  et MAJIS (Spectromètre Imageur des Lunes et de Jupiter).


Les conditions dans l'espace sont extrêmes, avec des niveaux de radiation élevés, des variations de température drastiques et des vibrations intenses. Les composants Exxelia ont été conçus pour résister à ces conditions, offrant une performance constante et fiable pendant toute la durée de la mission.

La mission JUICE est une entreprise ambitieuse qui vise à explorer les lunes de glace de Jupiter et à étudier leur composition et leur histoire. Cette mission permettra de mieux comprendre l'évolution du système solaire et de rechercher des signes de vie en dehors de la Terre.



Plus d'informations autour de la mission : https://sci.esa.int/web/juice/

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Published on 11 Apr 2023 by Stephane PERES

Exxelia at Space Tech Expo – Booth #5009

100% invar tuning screws with self-locking system  Invar-36 is a unique Iron-Nickel alloy (64 % Fe / 36 % Ni) sought-after for its very low coefficient of thermal expansion. With 1.1 ppm. K–1 between 0°C and 100°C, Invar-36 is about 17 times more stable than Brass which is the most traditional and common alloy Tuning Elements are made of. The working temperature range in Space is so wide that this property becomes essential for a reliable and stable cavity filter tuning. Self-locking system is a technology commonly used on Tuning Element made of Brass or other soft “easy-to-machine” alloys but is innovative and pretty advanced when applied to hard and tough Invar 36. The design consists of two threaded segments separated by two parallel slots. After cutting both parallel slots, the rotor is compressed in its length in order to create a plastic deformation. Thus, an offset is induced between the two threaded segments which generates a constant tensile stress in the rotor from the moment threaded segments are screwed. High power and high frequency ceramics with the new C48X dielectric Range of high voltage ceramic capacitors based on brand new dielectric material C48X, combining most advantages of NPO and X7R dielectrics. Compared to X7R material, C48X dielectric allows to get the same capacitance values under working voltage with the unrivaled advantage of a very low dissipation factor (less than 5.10–4). Besides, it can also withstand very high dV/dt, up to 10kV/μs, which makes it the solution of choice for pulse and fast charge/discharge applications or firing units. Thus capacitors with C48X dielectric appear to be ideally suited for power applications where heat dissipation may be detrimental to performances and reliability.   Magnetic components based on adaptive CCM technology Exxelia designed CCM technology to respond to the growing interest of electronic engineers for inductors and transformers with multiple outputs, high power density and reduced footprint. Qualified for aeronautic and space applications, the CCM product line features terrific robustness. The CCM technology adapts to most every need, even the harshest environments, including VIGON® resistance. The series offers five different sizes, allowing optimized component design in a pick-and-place surface mount (SMD) package. Through-hole (TH) packages are also available upon request. CCM transformers and inductors can operate over a wide temperature range with a minimal temperature of -55° C. The standard thermal grade of the technology is 140° C. The epoxy molding protecting the winding ensures a lower temperature gradient and a better heat dissipation. Each unit is thoroughly tested with a dielectric withstanding strength of 1,500 VAC.

Exxelia to showcase advanced Microwave Capacitors and Ferrites at IMS Microwave week 2024

Exxelia will be showcasing their Super High-Q series of RF ceramic capacitors. These capacitors feature ultra-low ESR and can operate at voltages up to 1500V. They are available in sizes ranging from 0402 to 1210, offering capacitance values from 0.1pF to 1 000pF. They are ideal for advanced RF applications such as power amplifiers, mixers, filters and matching networks.  Exxelia also features advanced High-Power High-Q series, designed for lower frequency applications with power handling up to 7200V and capacitance value up to 10nF. These capacitors are available in NPO and P90 dielectrics, offering exceptional performance with low ESR and ESL, making them ideal for the most demanding application. Those CP (P90) and CL (NP0) series are ideal for defense communication (VHF/UHF), medical MR body coils, and RF generators for plasma, semiconductor manufacturing, and extreme ultraviolet (EuV) lithography.    Exxelia will also exhibit its comprehensive range of materials & tuning components, with a special focus on its cutting-edge microwave ferrite products. These advanced components are engineered to meet the rigorous demands of modern microwave applications, providing unparalleled performance and reliability.    As a highlight of our presence at IMS Microwave Week, Exxelia will be pre-launching a new High-epsilon microwave ferrite. This new High-Epsilon Ferrite is featuring a permittivity of 21 and is available in two versions (YK21 and DK21) to address all power applications. It represents a significant advancement in ferrite technology, engineered to enhance the performance of high-frequency radar systems, especially in Active Electronically Scanned Array (AESA) radar applications. This new component delivers exceptional magnetic properties and stability, crucial for the optimal performance of isolator and circulator devices.       Key Features and Benefits about the new high-epsilon ferrite YK21 and DK21:  High permittivity : 21 Two power levels available  : ∆Hk = 4.5 and ∆Hk = 8.5 Wide range of Ms : 1250 to 1900 Gauss Frequency applications up to X band (12GHz). Combination with Exxelia dielectric range for Ferrite Dielectric Assembly (FDA) Short leadtime of 8-10 weeks for evaluation.                                        Meet Us at IMS Microwave Week 2024   We invite you to visit us at IMS Microwave Week 2024, from June 16-21 in Washington, D.C., at booth 2108. Our team of experts will be available to discuss the capabilities of the High-Epsilon Ferrite YK21-DK21 and how it can enhance your high-frequency applications.