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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

POWER SOLUTIONS AT PCIM 2017

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 monolithic design provides high mechanical performance, proven by the successfully testing in accordance with MIL-STD-202 (methods 213 and 204). 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. The CCM series is particularly flexible with a number of pins options available, from 2×6 pins for the smallest package, up to 2×10. 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. Thanks to the technology design, the thermal resistance is 30% lower than standard industrial components. 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. Component materials meet UL 94-V0 rating. Cost-effective Common-mode Chokes Qualified for Aerospace Exxelia designed this extensive and cost-effective range to be an easy commercial (COTS) solution for aerospace, defense, and other high-reliability applications. The TCM series is available in a through-hole package for horizontal or vertical mounting. TCM chokes are offered with inductances from 0.7 mH to 47 mH under rated currents from 0.3 to 4.0 A. Each unit is thoroughly tested with a dielectric withstanding strength of 1,500 VAC. Excellent thermal properties allow the series to operate from -55° C to +125° C. The high mechanical performance of the component materials (all meeting to UL94 V0 rating) makes TCM a perfect fit for aviation, defense and transportation industries.

Discover Exxelia's Innovations in High-Reliability Transformers

High reliability transformers: empowering portable operated X-Ray machines We supply cutting-edge High Voltage Transformers for Portable/Battery Operated X-ray Machines, catering specifically to electronic engineers. Our dedicated teams meticulously design these transformers, adhering to functional requirements and general package envelopes.     The challenges our teams skillfully overcome include crafting a transformer with a compact form factor, ensuring high voltage capabilities, and maintaining impeccable reliability.               Dual Active Bridge Transformers Spearhead a 50% Reduction in Power Dissipation and Capacitance for industrial transportation and agricultural vehicles We contribute to the industrial transportation and agricultural vehicle sectors. Our innovative solutions include the integration of Dual Active Bridge Transformers. Currently in progress, our teams are strategically planning to achieve a remarkable reduction of over 50% in power dissipation and capacitance. This ambitious goal will be realized through the implementation of novel winding and core configurations, showcasing Exxelia's unwavering dedication to pushing the boundaries of technology and enhancing the efficiency of electronic systems in Industrial Transportation and Agricultural Vehicles.     Inside satellite constellations with high voltage solutions We equips satellite constellations with advanced High Voltage Magnetics. Our solutions address the challenges of small packaging, high voltage requirements, and reliability. Engineered to surpass industry standards, our components ensure optimal performance in compact designs, meeting the unique demands of satellite technology.     Voltage Toroidal Components for Electronic Warfare ITAR We provide solutions for electronic warfare ITAR applications, equipping them with high-quality & high voltage assembly of toroids. In addressing the unique challenges posed by such systems, our team excels in delivering compact packages that seamlessly integrate with the stringent size requirements. The components boast remarkable high voltage capabilities, ensuring optimal performance in demanding electronic warfare environments.       Aerospace Transformers: Enhanced Performance in Compact Design We equips Military Aircraft ITAR with quasi-resonant full bridge transformers. Addressing the challenges presented by customers demanding increased output load while maintaining reduced height specifications, our engineering team rose to the occasion. Through innovative design and the implementation of new termination methods, we successfully reduced losses without compromising on the height requirement.     About Exxelia for electronics magnetics design Exxelia is specializing in the design and manufacture of magnetics for mission-critical applications in harsh environments. With a strong focus on high reliability, our expertise spans custom magnetics, including transformers and power inductors, tailored to meet unique requirements. Formerly known as RAF Tabtronics, we adhere to stringent standards such as MIL-PRF-27, providing custom solutions for diverse electronic applications.
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