LNU2G103MSEJ

The LNU2G103MSEJ is a high-voltage, screw-terminal aluminum electrolytic capacitor from Nichicon's LNU series. It delivers 10,000 µF nominal capacitance at a 400 V rating (part of a rated voltage range up to DC525 V) in a radial can with screw terminals for secure power connections.

Designed for industrial power electronics, this capacitor is optimized for inverter circuitry, high-frequency regenerative voltage and high-speed charge–discharge loading. It is specified for operation from –40°C to +105°C with a load life of 5,000 hours at 105°C under ripple current.

Key Features

• Capacitance & Voltage – 10,000 µF nominal capacitance with a 400 V rated voltage; rated voltage range extends up to DC525 V.
• High-Temperature Endurance – Rated for operation to 105°C with a specified load life of 5,000 hours when subjected to rated ripple current at 105°C.
• Screw Terminal Mounting – Radial can package with screw terminals for robust, low-impedance power connections in industrial assemblies.
• Ripple Current Handling – Specified ripple current of 25.9 A at 120 Hz and 36.26 A at 10 kHz, supporting heavy AC ripple and switching-load environments.
• High-Frequency & Charge–Discharge Capability – Engineered to cope with high-speed charge–discharge cycles and high-frequency regenerative voltages common to motor drives and inverters.
• Construction & Tolerance – Polarized electrolytic design with capacitance tolerance of ±20% (120 Hz, 20°C).
• RoHS Compliance – Compliant with RoHS directive (2011/65/EU, (EU)2015/863).
• Space-Conscious Design – Marketed as a smaller-sized, high-voltage option within the LNU series for compact power designs.
• Physical Size – Length and diameter dimension: 14.5 cm × 9 cm (L × D).

Typical Applications

• Industrial Inverters & Motor Drives – DC link and regenerative smoothing for AC servomotor and general inverter equipment where high-voltage, high-ripple capability is required.
• Industrial Power Supplies – Bulk energy storage and smoothing in inverter circuitry and high-voltage power subsystems.
• Regenerative Braking Systems – Absorbing and smoothing high-frequency regenerative voltage pulses from motor systems.
• High-Speed Charge–Discharge Circuits – Applications that require repeated fast charge/discharge cycles under rated voltage stress.

Unique Advantages

• High Voltage Flexibility: Rated at 400 V with series capability up to DC525 V, enabling use in a range of DC-bus and inverter topologies.
• Extended High-Temperature Life: 5,000-hour load life at 105°C provides predictable long-term performance under continuous ripple load.
• Robust Ripple Performance: High specified ripple currents at both low and high frequency (25.9 A @120 Hz, 36.26 A @10 kHz) match demanding switching and regenerative environments.
• Secure Power Connections: Screw terminal construction simplifies installation and ensures reliable mechanical and electrical contact in power racks and assemblies.
• Optimized for Compact Power Designs: Marketed as smaller-sized than comparable LNT series parts, helping reduce footprint in constrained enclosures.
• Regulatory Compliance: RoHS-compliant construction supports environmental requirements for industrial equipment.

Why Choose LNU2G103MSEJ?

The LNU2G103MSEJ combines high-voltage capability, substantial ripple handling and extended high-temperature life in a screw-terminal radial can tailored for industrial power electronics. Its specification set aligns with inverter circuitry, regenerative motor control and high-frequency charge–discharge applications that demand durable, high-voltage bulk capacitance.

Produced by Nichicon as part of the LNU series, this capacitor is suited for engineers designing compact, high-voltage power systems who need verified endurance (5,000 hours at 105°C) and clear electrical parameters for reliable integration into DC-link and regenerative designs.

Request a quote or contact sales to discuss availability, lead times and technical fit for your application.