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HIGH VOLTAGE CERAMIC CAPACITORS BASED ON BRAND NEW DIELECTRIC MATERIAL

Exxelia presents a new range of C48X high voltage ceramic capacitors. No more compromises between stability and capacitance! The brand new C48X material combines most advantages of NPO and X7R dielectrics, enabling the new high power and high frequency ceramic capacitor range to provide great stabil...

No more compromises between stability and capacitance! The brand new C48X material combines most advantages of NPO and X7R dielectrics, enabling the new high power and high frequency ceramic capacitor range to provide great stability in voltage, high capacitance, great dissipation factor and fast charge/discharge.

Miniaturization is a driving need for future electronics pieces of equipment. This evolution, true whatever the application, leads Exxelia Technologies (ex-Eurofarad) to develop a brand new high voltage ceramic capacitors range based on a new dielectric material named C48X, combining most of the 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. Thus capacitors with C48X dielectric appear to be ideally suited for power applications where heat dissipation may be detrimental to performances and reliability.
Exxelia Technologies’ capacitors based on the C48X material have been developed from 200V to 5kV with chip sizes ranging from 1812 to 16080, allowing a maximum capacitance value of 10μF 200V (10 times more than with an NPO ceramic). The standard stacked versions are proposed with a maximum capacitance value of 47μF 200V.

Regarding the mounting of these capacitors, many configurations are possible to be compatible either with surface mounting or through-hole mounting. All these versions can be suitable for space use and can be designed in order to avoid any whisker growth risk (10% min lead in all tin-lead alloys used). The introduction of the C48X range in the EPPL (European Space Agency Preferred Parts List) for space is in progress for sizes 0603 to 6560 from 100V to 1kV up to size 1210 and up to 5kV until the size 6560).
Some typical applications:
• 400Hz Aircraft
• Defense
• Space
• Precision/filtering capacitance in thermally challenged environment for AC or DC voltage

Published on 05 Jun 2017 by Marion Van de Graaf

Exxelia will integrate a cobot into its manufacturing process

Exxelia has just equipped itself with a cobot (in partnership with the company Cognitive Engines) adapted to the production needs related to the manufacture of RF High Q capacitors. The cobot is a collaborative robot designed to work hand-in-hand with operators. This technology coupled with artificial intelligence (I.A) offers a multitude of advantages including:   Quality improvement: The cobots are equipped with high performance sensors and integrated quality control systems, which allow 100% thorough visual inspection, and guarantee a high level of quality, while adapting to the movements of the operators (no occupational safety risk). Flexibility: Cobots are lightweight and adaptable. This versatility allows them to occupy different positions depending on the needs of the moment. Safety: Cobots are designed to be used in pairs with Exxelia operators and can therefore protect them from dangerous or arduous tasks, which greatly improves the quality of life at work (reduction of repetitive gestures; positive impact on musculoskeletal disorders ). Optimization of operator time: Cobots take care of low value-added tasks and let the operator focus on high-value tasks, which values ​​the contribution of operators.     By collaborating with operators, cobots can improve production quality and accuracy, while ensuring their safety. Industry 4.0 is changing the way businesses operate and the way products are designed, manufactured and delivered. Exxelia is convinced of the importance of Industry 4.0 and is positioning itself to be at the forefront of this transformation.           As a company specializing in the design and manufacture of critical electronic components for industrial applications, Exxelia pays particular attention to maintaining its extensive know-how. Exxelia uses state-of-the-art technologies to ensure the high level of quality that the applications the group serves cannot be without. The group pays particular attention to the coexistence of robotization with the mastery of manual processes held by operators to continue to offer customers the highest quality products, while remaining competitive. Adopting this technology will allow Exxelia to maintain its leadership position in its industry, while improving quality, accuracy, operator safety and production efficiency.    

Exxelia equips the Turkish satellite IMECE with tantalum and ceramic capacitors

IMECE is a technological feat that pushes the boundaries of high-resolution imaging. Exxelia is proud to play an essential role in this space adventure by providing quality components to ensure proper operation.   IMECE is an earth observation satellite designed and developed by TÜBİTAK Space Technologies Research Institute (TÜBİTAK UZAY) and produced in Türkiye to provide high-resolution imagery. The spacecraft has a mass of 800 kg (1,800 lb) and it will serve at 680 km (420 mi) on a sun-synchronous geocentric orbit. The Satellite, projected for a mission duration of five years, has 0.99m image resolution of Panchromatic (PAN). The satellite has been launched on 15 April 2023 on a SpaceX's Falcon 9 Block 5 rocket as part of the Transporter-7 ridershare mission.   Exxelia equips the satellite with PM series capacitors that are used in the satellite's Power Distribution Unit (PDU). Exxelia's PM series capacitors are renowned for their reliability, performance, and durability, making them ideal for space applications. Exxelia also supplies tantalum capacitors and ceramic capacitors for the payloads of the IMECE Satellite. These components are designed to withstand the extreme conditions of space and ensure the proper operation of scientific instruments and equipment on board the satellite.   We look forward to the discoveries and data that the IMECE Satellite will provide during its five-year mission. The future of space exploration looks promising, and Exxelia will continue to play an active role in this exciting adventure.
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