Certification QPL pour les gammes PM907S et PM98S

Exxelia annonce l’obtention de la qualification ESA/QPL pour ses gammes de condensateurs film : PM907S et PM948S.


 

Les gammes PM907S et PM948S de condensateurs film viennent d’être officiellement qualifiées QPL par l’organisme européen ESCC (European Space Components Coordination). La certification QPL atteste que les performances du produit ont été validées par un organisme accrédité indépendant. Les produits qualifiés QPL offrent une qualité et fiabilité supérieures, qui répondent aux exigences des applications spatiales.

Les gammes PM907S et PM948S appartiennent à la famille des condensateurs film polyester métallisés (PET), haute précision. La gamme PM907S est adaptée aux tensions de 50V à 1250V, et offre une capacité allant de 82nF jusqu’à 180μF. La gamme PM948S couvre quant à elle les tensions situées entre 50V et 630V, et offre une capacité allant de 22nF jusqu’à 47μF.

Ces deux gammes supportent des conditions extrêmes, des températures oscillant entre -55°C et +125°C, tout en offrant une forte concentration d’énergie, de faibles ESR et ESL, ainsi qu’un courant RMS élevé.
Ces produits sont principalement utilisés dans des alimentations à découpage et pour la fonction de filtrage des BUS.

La liste des gammes de condensateurs film certifiées QPL et développées par Exxelia, comprend désormais les gammes :
– PM90S
– PM907S
– PM96S (T)
– PM94S
– PM948S
– MKT5
– KM111S
– KM94S
– HT78PS

Published on 06 Jul 2016 by Marion Van de Graaf

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.

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