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Exxelia, a leading manufacturer of ruggedized passive components and sub-systems dedicated to demanding markets, today introduced Miniature Micro-Layer™ (MML™) capacitors, a breakthrough technology that allows tremendous size and weight reduction thanks to an unrivaled energy density.

MML™ is a revolutionary new technology that provides the highest capacitance per volume in film capacitors available on the market.

Why is it a game changer? Because an unparalleled energy density of 400 J/dm3 allows for a tremendous reduction in size and weight compared to traditional Polypropylene or Polyester dielectrics, together with an increased operating temperature up to 140°C and transient voltage protection.

Besides, MML™ capacitors offer a large flexibility in design, easily allowing low profile configurations.

Several studies have been conducted on actual cases of controls and DC-Links functions for aircraft applications. All have shown about 50% reduction in size and weight compared to other film technologies.

The comparative picture with MLCC is even more flattering, as it demonstrates between 70% to 90% reduction in weight, while showing no capacitance derating with voltage applied and a low drift < 5% through the temperature range. Applications using clusters of stacked MLCCs can now be replaced by a single MML™ unit of similar size, with all of the increased reliability that film dielectric offers.

With such outstanding properties, Exxelia new MML™ capacitors are perfectly suitable for power supplies, DC-links, AC/DC/AC power converters, charge/discharge or power generation functions of commercial/military aircraft, satellite platforms and payloads, launchers, defibrillators, downhole tools and any applications of confined electronics.
Samples are readily available on request.

Features & Benefits

● Miniaturization of the function : Up to 50% size reduction vs other film technologies ; matching footprint with stacked MLCC
● Lightweight : 50% lighter vs other film technologies ; 80 to 90% lighter than ceramic
● No capacitance derating in voltage, stable in temperature (<5% drift through the temperature range)
● Capacitance from 1μF to 1000μF
● Voltages from 50V to 1000V
● Operating Temperature -55°C to +140°C
● Highly customizable

About Exxelia

Exxelia is a global manufacturer of high-grade passive components and high-end electromechanical solutions. Exxelia Group was born in 2009 from the merger of several long-established companies with complementary activities and know-hows. This powerful alliance of expertise enables the Group to provide a unique product portfolio dedicated to harsh environments. Exxelia’s products are commonly used for power electronics, power generation, energy storage, and signal filtering functions in demanding domains such as Defense, Aviation, Space, Energy, Transportation, Medical, Telecom and other Industrial applications.