Condensateurs électrolytiques en aluminium
designed for high-reliability and demanding environments.
The Exxelia Cubisic range is a family of rectangular aluminum electrolytic capacitors designed for demanding applications requiring compact integration, high energy density, and reliable performance in harsh environments. The portfolio includes Cubisic, Cubisic SLP, and Cubisic HTLP, covering a wide range of electrical and environmental requirements for aerospace, defense, and industrial power systems.
As a rectangular electrolytic capacitor manufacturer and rectangular electrolytic capacitor supplier, Exxelia provides a high level of customization and compatibility with MIL and aeronautical standards.
Key Value Proposition (All CUBISIC Series)
The Cubisic product family is based on a radial rectangular electrolytic capacitor architecture developed to optimize space utilization in embedded power electronics. The format supports low profile electrolytic capacitor integration, including super low profile capacitor, thin package capacitor, and stackable capacitor low profile configurations.
Available in typical 12mm low profile capacitor formats, Cubisic devices are compatible with dedicated mechanical mounting solutions such as capacitor mounting brackets, capacitor brackets, and capacitor mounting straps, ensuring mechanical stability in high vibration environments.
In addition to the our IEC qualified standard range, we can propose a « MIL Standard » qualification in Dearborn factory in Longwood, USA fully certified by the DLA.
CUBISIC SLP – Super Low Profile and High Capacitance Solution
The Cubisic SLP (Standard Low Profile) series is developed for applications requiring high energy density and enhanced mechanical robustness while maintaining reduced package height.
Technical features:
Capacitance range: 140 µF to 60,000 µF
Voltage range: 10 V to 450 V
Operating temperature range: –55°C to +85°C
Vibration & Shock resistance: 5,000 hours at 85°C
Mechanical resistance: up to 50g
Cubisic SLP capacitors are commonly implemented in radar power units, power conditioning modules, and aircraft control electronics. Their rectangular design
allow to stack assembly for a better volume optimization and their internal construction provide stable performance under reduced atmospheric pressure, enabling operation as high altitude application and low pressure application, validated up to 92,000 feet.
CUBISIC - Standard High-Reliability Rectangular Electrolytic Capacitor
The standard Cubisic capacitor is a rectangular aluminum electrolytic capacitor combining high energy density and long operational lifetime for power conversion and energy storage systems.
The standard Cubisic capacitor is a rectangular aluminum electrolytic capacitor combining high energy density and long operational lifetime for power conversion and energy storage systems.
Main characteristics:
Capacitance range: 100 µF to 33,000 µF
Voltage range: 10 V to 450 V, suitable as a high voltage DC capacitor
Operating temperature range: –55°C to +105°C
Endurance: 8,000 hours at 105°C
Shock and vibration resistance: up to 20G
Optimized Low ESR aluminium capacitor performance
Cubisic devices are widely used as bulk capacitors, smoothing capacitors, and SMPS application. Thanks to their thermal robustness, they can handle the high level of charge / discharge required for the holdup application in avionics, flight control systems, and industrial power modules.
CUBISIC HTLP – Hermetic High Temperature Electrolytic Capacitor
The Cubisic HTLP (High Temperature Low Profile) series is designed for applications exposed to elevated temperatures and long mission durations. It integrates hermetic sealing and stainless steel casing technology to ensure reliability in severe environmental conditions and exceptional storage resistance longer than 5 years.
Key specifications:
Capacitance range: 140 µF to 60,000 µF
Voltage range: 10 V to 450 V
Operating temperature range: –55°C to +125°C
Endurance: 5,000 hours at 125°C
Shock and vibration resistance: up to 20G
Stainless steel enclosure with welded fixing solutions
This hermetic sealed electrolytic capacitor is used in programs requiring high reliability electrolytic capacitors, including embedded defense electronics, radar systems, and electro-optical targeting platforms. Cubisic HTLP is frequently selected as a 125C electrolytic capacitor, high temperature electrolytic capacitor, and Military DC capacitor.
Designed for Harsh Environment Power Applications
Across the full Cubisic portfolio, Exxelia capacitors are engineered as harsh environment capacitors supporting:
Energy storage and power back-up
Coupling and decoupling
High energy DC link stabilization
Power smoothing in SMPS and conversion systems
The rectangular format improves integration density while maintaining long operational lifetime and extended storage capability up to 10 years.
Customization Manufacturing
The Exxelia Cubisic range offers extensive customization possibilities, including mechanical adaptations, sleeve options, welded fixing plates, and dedicated mounting accessories. This flexibility allows system designers to optimize integration within complex power assemblies while maintaining long-term program availability.
The Cubisic, Cubisic SLP, and Cubisic HTLP ranges form a coherent portfolio of rectangular aluminum electrolytic capacitors addressing high-reliability power electronics requirements.
With extended voltage and capacitance ranges, low-profile and stackable mechanical formats, high vibration and shock resistance, and validated operation at high altitude and low pressure, the Cubisic platform supports a wide variety of bulk, smoothing, SMPS, and hold-up capacitor functions.
Cubisic family provides engineers and procurement teams with a flexible alternative to flatpack and MLP technologies for aerospace, defense, and harsh environment applications.
With extended voltage and capacitance ranges, low-profile and stackable mechanical formats, high vibration and shock resistance, and validated operation at high altitude and low pressure, the Cubisic platform supports a wide variety of bulk, smoothing, SMPS, and hold-up capacitor functions.
Cubisic family provides engineers and procurement teams with a flexible alternative to flatpack and MLP technologies for aerospace, defense, and harsh environment applications.
