LNU2G123MTEJ

The LNU2G123MTEJ is a screw‑terminal aluminum electrolytic capacitor from Nichicon's LNU series. It is a high‑voltage, stud‑bolt mount, radial can capacitor rated at 12,000 µF and 400 V, engineered for industrial power electronics.

Designed for demanding inverter and regenerative applications, this capacitor combines high ripple handling and a 105°C, 5,000‑hour load life to support sustained operation in industrial power supplies, AC servomotor regenerative circuits, and general inverter systems.

Key Features

• Capacitance & Tolerance — 12,000 µF (12 mF) nominal with ±20% tolerance.
• Voltage Rating — Rated for 400 V DC operation.
• High Temperature Endurance — Rated operating range −40°C to +105°C with a specified load life of 5,000 hours at 105°C.
• Ripple Current Capability — 30.1 A at 120 Hz and 42.14 A at 10 kHz, supporting high current and high frequency ripple conditions.
• Package & Mounting — Radial can with screw terminals and stud bolt mount for secure mechanical installation and high current connections.
• Physical Size — Large can: φ90 × 165 mm (L: 16.5 × D: 9 cm), designed for high‑energy storage in a compact LNU series footprint.
• Endurance & Reliability — Meets endurance criteria after D.C. bias plus rated ripple current for 5,000 hours at 105°C (capacitance and tan δ limits specified by datasheet).
• Leakage & Insulation — Leakage current specification: after 5 minutes, ≤ 3√(C·V) µA or 5 mA (whichever is smaller); insulation resistance >100 MΩ at DC 500 V between terminal and bracket.
• Compliance — RoHS‑compliant.

Typical Applications

• Industrial Inverters — Bulk energy storage and smoothing for power supplies used in inverters and drive electronics.
• AC Servomotor Regenerative Circuits — Handles high‑frequency regenerative voltages and rapid charge/discharge cycles in motor control systems.
• High‑Power Industrial Power Supplies — Supports sustained ripple current and elevated temperatures in factory automation and power conversion equipment.
• General Purpose Power Conditioning — Use where high capacitance, high voltage, and robust thermal endurance are required for reliable system operation.

Unique Advantages

• High Voltage Handling: 400 V rating provides the headroom required for high‑voltage industrial power systems.
• Long High‑Temperature Life: 5,000 hours at 105°C enables prolonged operation under elevated thermal stress.
• Strong Ripple Performance: Specified ripple currents at both 120 Hz and 10 kHz accommodate low‑ and high‑frequency ripple in inverter and regenerative environments.
• Robust Mechanical Connections: Screw terminal and stud bolt mounting deliver reliable, low‑impedance connections for high current paths.
• Manufacturer Series Engineering: Part of Nichicon’s LNU series, which targets high‑voltage, smaller‑sized aluminum electrolytic solutions for industrial applications.
• Regulatory Compliance: RoHS conformity supports use in regulated product builds.

Why Choose LNU2G123MTEJ?

The LNU2G123MTEJ offers a focused combination of high capacitance, 400 V rating, and engineered thermal endurance for industrial power electronics. Its screw‑terminal radial can and stud‑bolt mounting make it practical for high‑current, high‑reliability installations such as inverter systems and regenerative motor drives.

For designs that require sustained ripple performance and long life at elevated temperatures, this Nichicon LNU series capacitor provides verifiable specifications—capacity, ripple current, leakage, and endurance—so engineers can match component selection directly to application requirements.

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