LNU2G123MSEJBB

The LNU2G123MSEJBB is a high-capacitance aluminum electrolytic capacitor in Nichicon’s LNU series. This screw-terminal, radial can capacitor provides 12,000 µF nominal capacitance at a 400 V DC rating and is built for demanding industrial power applications.

Designed for inverter and regenerative power circuits, the part delivers high ripple-current capability, extended life at elevated temperatures, and robust mounting via screw terminals—making it suitable for industrial power supplies, AC servomotor regenerative circuits and other high-energy systems.

Key Features

• High Capacitance — 12,000 µF nominal capacitance for substantial bulk energy storage and smoothing.
• 400 V Rated Voltage — Rated for 400 V DC operation for high-voltage power systems.
• Elevated Temperature Operation — Rated for continuous operation from −40°C to +105°C, with a load life of 5,000 hours at 105°C.
• High Ripple Current Handling — 30.1 A ripple at 120 Hz and 42.14 A at 10 kHz to support high-frequency and low-frequency ripple loading.
• Screw Terminal Mounting — Radial can with screw terminals for secure, low-impedance power connections in industrial assemblies.
• Electrical Characteristics — ±20% capacitance tolerance (120 Hz, 20°C), tan δ = 0.2, and leakage current up to 5,000 µA as specified.
• Compact Industrial Form Factor — Can dimensions approximately L: 165 mm × D: 90 mm for a high-capacitance solution in a screw-terminal can.
• RoHS Compliant — Meets RoHS directive requirements.

Typical Applications

• Industrial Inverters — Bulk energy storage and smoothing in inverter power supplies, where high voltage and high ripple handling are required.
• AC Servomotor Regenerative Circuits — Supports regenerative voltage and high-speed charge–discharge loading in motor drive systems.
• Power Supplies for Industrial Equipment — DC link and filter capacitor in industrial power supplies and power conversion modules.
• High-Frequency Power Systems — Applications requiring substantial ripple current capability at both low (120 Hz) and high (10 kHz) frequencies.

Unique Advantages

• High energy storage in a screw-terminal package: 12,000 µF at 400 V provides large bulk capacitance with secure mechanical and electrical connections for heavy-current systems.
• Designed for elevated-temperature longevity: 5,000-hour rated life at 105°C ensures reliable performance under sustained thermal stress.
• Dual-frequency ripple capability: Rated ripple currents of 30.1 A (120 Hz) and 42.14 A (10 kHz) support both line-frequency smoothing and high-frequency switching loads.
• Robust leakage and loss characteristics: Specified leakage current and tan δ support predictable behavior in precision power designs.
• Industrial fit and finish: Radial can with screw terminals and dimensions (165 mm × 90 mm) suited for heavy-duty power assemblies and straightforward integration.
• Regulatory compliance: RoHS compliance provides assurance for regulated manufacturing environments.

Why Choose LNU2G123MSEJBB?

The LNU2G123MSEJBB combines high capacitance, a 400 V rating and proven LNU-series construction to meet the demands of industrial power conversion and motor-drive systems. Its screw-terminal can and high ripple-current capability make it a practical choice when robust electrical connections and sustained high-power handling are required.

This part is suited for engineers specifying capacitors for inverter DC links, regenerative circuits and other high-energy industrial applications that require stable performance up to 105°C and a well-defined 5,000-hour life at elevated temperature.

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