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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

Our presence at Electronica 2022

Aircraft & Space Embedded Products cluster, bringing together components that can be mounted on a satellite, radar or aircraft, we were ready to introduce two innovations that are particularly well suited to the challenges of the aviation of the future and the objectives of decarbonisation of the air. Its latest film capacitor innovation called MML™ (named after its "Miniature Micro-Layer" dielectric) shows an energy density up to 4 times higher than other film dielectrics. MML® technology makes power capacitors smaller, lighter and compatible with higher temperatures, and is therefore particularly suitable for DC-Link, decoupling & charge-discharge applications. Alongside MML™ components, we presented the latest innovations in magnetic components, saving up to 40% in weight and 20% in volume while dissipating more power, some of which have been designed for eVTOL applications, as well as the CCM & Dual Active Bridge multi-output transformers. Rail & Energy Exxelia showed Alcon capacitors for the first time at its Rail & Energy cluster. Alcon is one of India's leading designers and manufacturers of standard and customised aluminium electrolytic and film capacitors for niche markets. Alcon supplies many of the components used in trains, electrical charging stations and power generation systems. Exxelia's film and ceramic capacitors for signalling systems, as well as current and instrument transformers, and resistors was presented on display.   Medical​​ Exxelia Micropen & Exxelia Ohmcraft components was showcased at Electronica for the very first time with a unique offering for the medical sector. Indeed, Exxelia Micropen's unique additive printing technology is widely used for disposable medical equipment such as endotracheal tubes or surgical ablation tools, and high voltage resistors are used in laboratory equipment such as mass spectrometers or thermal cyclers.  

Inauguration EXXELIA Manufacturing site Morocco

We are thrilled to announce the inauguration of our brand new, modern, custom-built site in Morocco, a colossal 10,000 m2 industrial facility dedicated to electronic products. This state-of-the-art site is equipped with a 200 m2 clean room and is fully air-conditioned, setting a new standard in electronic manufacturing.     Features at a Glance: Industry 4.0 Orientation: Our modern plant follows the Hoshin method, embraces digital integration, and adopts lean principles. This ensures efficiency, precision, and adaptability in our manufacturing processes. Workplace Modernization: Our workshops are designed with the well-being of our teams in mind. We've modernized workstations, introduced new, more reliable, and productive equipment, creating clean, pleasant, and ergonomic environments. Green Surroundings: Easy access to a green environment enhances the overall workspace experience, promoting a positive atmosphere for innovation and collaboration.   Main Activities: Internal Subcontracting for French & US Sites: Our facility specializes in manufacturing a range of electronic components, including ceramic capacitors, electrolytic components, film products, stators, magnetic products, position sensors, and slip rings. Electronic Assembly for External Customers: We offer electronic assembly services for external customers, covering the winding of transformers and chokes, assembly of rotors and stators, wiring, and microwave micro-electronic assembly.   This step marks a significant expansion for Exxelia, solidifying our commitment to excellence and innovation in electronic manufacturing.    

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