LNU2G103MSEJBN

The LNU2G103MSEJBN is a Nichicon LNU series aluminum electrolytic capacitor in a radial can with screw terminals. It provides 10,000 µF capacitance at a 400 V DC rating and is specified for continuous operation up to 105°C.

Designed for industrial power systems, this screw-terminal capacitor addresses inverter circuitry, high-frequency regenerative voltages for AC servomotors, and other demanding charge-discharge applications where high voltage, high ripple handling and long-term thermal endurance are required.

Key Features

• Capacitance & Rated Voltage — 10,000 µF nominal capacitance with a 400 V DC rating; capacitance tolerance is ±20% (measured at 120 Hz, 20°C).
• High-temperature Endurance — Rated for operation from −40°C to +105°C with a specified load life of 5,000 hours at 105°C under rated ripple current conditions.
• Screw Terminal Package — Radial can with screw terminals for robust mechanical and electrical connections in power modules and industrial enclosures.
• High Ripple Current Capability — Supports 25.9 A at 120 Hz and 36.26 A at 10 kHz, enabling use in high-current, high-frequency inverter and regenerative circuits.
• Charge–Discharge Endurance — Specified to meet performance after 50 million charge–discharge cycles (ΔV = rated voltage ±0.3, 3 Hz), supporting frequent energy cycling applications.
• Leakage Current Specification — After 5 minutes at rated voltage, leakage current is limited to 3√(C·V) µA or 5 mA, whichever is smaller (measured at 20°C).
• Series Voltage Range — The LNU series covers rated voltages up to DC 525 V; this specific part is rated at 400 V.
• RoHS Compliance — Compliant with the RoHS directive (2011/65/EU, (EU)2015/863).
• Physical Size & Mounting — Radial can design with screw terminals; nominal package dimensions noted as L: 14.5 × D: 9 cm and a seated height specification listed in product data.

Typical Applications

• Industrial Power Supplies — Bulk energy storage and smoothing in high-voltage DC power supplies for industrial equipment.
• Inverter and Motor Drive Systems — DC link and filtering use in general inverters and AC servomotor drives where high ripple and charge–discharge endurance are required.
• Regenerative Circuits — Handling high-frequency regenerative voltages in motor control and energy-recovery systems.
• High-Speed Charge–Discharge Systems — Applications requiring frequent energy cycling, leveraging the part’s specified charge–discharge endurance.

Unique Advantages

• High-voltage capability in compact form: The LNU series provides higher voltage ratings while maintaining a smaller size compared with earlier designs, delivering space-efficient energy storage.
• Extended high-temperature life: Rated for 5,000 hours at 105°C under ripple, supporting reliable operation in hot industrial environments.
• High ripple-handling performance: Explicit ripple current ratings at 120 Hz and 10 kHz enable predictable thermal and electrical design margins in power stages.
• Robust mechanical termination: Screw terminal connections provide strong electrical contact and secure mounting for industrial assemblies.
• Charge–discharge durability: Specified endurance for 50 million charge–discharge cycles supports frequent cycling without exceeding defined limits for capacitance, dissipation factor, and leakage.
• Regulatory compliance: RoHS directive compliance supports use in assemblies requiring restricted substance adherence.

Why Choose LNU2G103MSEJBN?

LNU2G103MSEJBN is positioned for engineers designing industrial power systems that demand high-voltage energy storage, strong ripple-current capability, and long-term operation at elevated temperatures. Its screw-terminal radial can enables straightforward integration into DC-link, inverter and regenerative circuits where secure connections and mechanical robustness are important.

With specified endurance for both thermal load life and repeated charge–discharge cycles, plus clear leakage and impedance criteria, this capacitor provides verifiable performance parameters to reduce design risk and simplify thermal and reliability planning in high-power applications.

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