Exxelia announces the release of new world-unique invar tuning elements featuring a self-locking system. The product has been designed to respond to increasing demand for high frequency tuning elements for space applications.

Working frequencies in Space applications are shifting to Ka, Ku or even Q band, while cavity filters are undergoing the general trend towards miniaturization: this context calls for a much more precise and stable tuning element now offered by Exxelia Temex, daughter company of Exxelia, through their last innovative and unrivalled solution to incorporate a self-locking system into their Invar Tuning Elements.
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.

Publié le 07 Nov 2016 par Marion Van de Graaf

Exxelia à Railtex 2017

Felsic HV, long lifetime and high voltage screw terminal aluminum electrolytic capacitor The Felsic HV family of aluminum electrolytic screw terminal capacitors provides great performances in energy density and ultra-long lifetime. For instance, 6 800µF @450V fit into a  volume of Ø77 x 220mm  and can withstand 200,000h between 0 to 70° under 37Amps, which makes them the perfect choice for use in rolling stock traction systems or the CVS. The family also has one of the lowest ESR for aluminum capacitors with less than 10m0hms in most cases. Products are available for voltages from 160 to 450 Vdc, and offer capacitance values from 1500μF up to 47 000μF offering the best compromise between reliability and compacity.     Snapsic HV, high voltage snap aluminum electrolytic capacitor Because it covers voltages from 16 to 500Vdc and temperatures up to +105°C, and because it is customizable, the Snapsic HV series is very versatile and can cover all needs of energy storage in medium voltage both in rolling stock equipment or signaling systems. Thanks to its high ripple current, it is often used in SMPS and HVAC rolling stocks units with a typical variation of 470µF @450V in Ø35 x 50mm, as well as in various signaling control units, where a smaller package can be used with for example 1 000µF @250V in Ø35 x 40mm.   Prorelsic, the long lifetime axial aluminum electrolytic capacitors for signaling equipment Exxelia’s range of aluminum electrolytic solutions would not be complete without the axial leaded Prorelsic series. These capacitors show high ripple current and extra-long life-time with 20 000h @105°C. The most common sizes are Ø8.5 x 19mm, Ø10 x 19mm and Ø12 x 30mm, with typical values of 47µF @40V, 100µF @25V and 47µF @100V respectively. Prorelsic capacitors are perfectly suited for smoothing, coupling/decoupling and energy storage functions in railway signaling equipment.

Fusion d'Exxelia Microspire et Exxelia N'Ergy

Exxelia Magnetics regroupe toutes les activités de conception, fabrication et industrialisation de composants magnétiques bobinés, du groupe en France : transformateurs et inductances, électroaimants, rotors et stators. Cette fusion vise à améliorer les services réalisés auprès des clients et autres collaborateurs mais également à simplifier les démarches administratives et commerciales. L’organisation actuelle des entreprises, les sites et leurs fonctions allouées restent inchangés. Exxelia Microspire conçoit, industrialise et fabrique depuis plus de 35 ans des composants bobinés : transformateurs et inductances, électroaimants, rotors et stators. Exxelia Microspire dispose de plusieurs sites de fabrication dont notamment des sites à faibles coûts de production nouvellement installés, permettant de proposer des solutions compétitives. Le savoir-faire d’Exxelia Microspire inclut les technologies standards de bobinage linéaire (formats RM, ETD, EP, EFD, ER, EQ..) et toroïdal. Pour les marchés à environnements sévères (chocs, vibration, hautes températures, …). Exxelia Microspire dispose de technologies spécifiques et innovantes telles que les technologies SESI, TT et CCM. La qualification de ses technologies, la définition des règles de conception associées et son organisation industrielle lui permettent de proposer à ses clients des solutions optimales. Exxelia N’Ergy est spécialisée dans la conception, la fabrication de composants électromagnétiques passifs spécifiques, en petite et moyenne série. Exxelia N’Ergy propose : l’étude et la conception de composants électromagnétiques spécifiques avec conducteurs cuivre ou aluminium destinés aux domaines de la conversion d’énergie de produits embarqués, la fabrication de bobinages linéaires ou toriques en petite et moyenne série en fourniture complète ou partielle, le surmoulage de composants électromagnétiques ou de cartes (potting), le contrôle électrique 50 ou 400 Hz.

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