LNU2W123MSEJBB

The LNU2W123MSEJBB is a Nichicon LNU series aluminum electrolytic capacitor in a screw-terminal radial can designed for high-voltage, high-ripple applications. It delivers 12,000 µF at a 450 V rating in a compact φ90 × 195 mm can and is intended for industrial power systems.

Engineered for inverter and regenerative circuits, this screw-terminal capacitor combines high ripple-current handling and long load life at elevated temperature, offering reliable smoothing and charge–discharge performance in demanding industrial environments.

Key Features

• Capacitance and Voltage: 12,000 µF capacitance rated at 450 V DC (±20% tolerance), suitable for high-voltage energy storage and smoothing duties.
• Screw-Terminal Radial Can: Robust screw terminal mounting and radial can package for secure electrical and mechanical connections in industrial assemblies.
• High Temperature Endurance: Rated for operation from −40°C to +105°C with a guaranteed load life of 5,000 hours at 105°C under rated ripple conditions.
• High Ripple Current Capability: Supports 29.9 A at 120 Hz and 41.86 A at 10 kHz, enabling effective filtering and handling of high-frequency regenerative currents.
• Reliability and Safety Tests: Insulation resistance greater than 100 MΩ at DC 500 V between terminal and bracket; voltage proof AC 2500 V for 1 minute with no abnormality.
• Polarized, Industrial Grade: Polarized aluminum electrolytic designed for general-purpose industrial use with load-life and charge–discharge endurance verifications in the datasheet.
• Regulatory Compliance: RoHS compliant per the information provided for the LNU series.
• Form Factor: Physical size φ90 × 195 mm (L: 19.5 × D: 9 cm) with cardboard packing for mass production handling.

Typical Applications

• Industrial Inverters: Smoothing and energy storage for inverter power stages where high DC voltage and sustained ripple current capability are required.
• AC Servomotor Regeneration: Handling high-frequency regenerative voltage in servo drives and motor-control systems to stabilize DC bus voltages.
• High-Speed Charge–Discharge Circuits: Applications that require capacitors designed to cope with rapid charge and discharge cycles without degradation.
• General-Purpose Industrial Power Supplies: Bulk capacitance and filtering in high-voltage power supplies for industrial equipment.

Unique Advantages

• High-Voltage, Compact LNU Form: Delivers 450 V rating in the LNU-series smaller-sized can, allowing designers to meet high-voltage needs in constrained layouts.
• Long High-Temperature Life: 5,000-hour load life at 105°C provides predictable lifetime behavior in thermally demanding installations.
• High-Frequency Ripple Handling: Elevated ripple-current ratings at both low and high frequencies support effective filtering in regenerative and high-speed switching environments.
• Robust Mechanical Connection: Screw terminals provide secure, low-resistance terminations suited to heavy-current industrial applications.
• Proven Endurance Tests: Meets charge–discharge endurance and shelf-life criteria described in the LNU series datasheet for reliable long-term operation.
• Regulatory Compliance: RoHS status documented for the series, simplifying environmental compliance for production designs.

Why Choose LNU2W123MSEJBB?

LNU2W123MSEJBB is positioned for designs that require substantial bulk capacitance at high DC voltages with sustained ripple-current capability and proven high-temperature endurance. Its screw-terminal radial can and specified insulation/voltage-proof parameters make it a practical choice for industrial inverter, motor-regeneration, and power-supply applications where reliable, serviceable terminations and long life are important.

This part is suitable for engineers and procurement teams specifying robust capacitors for high-voltage bus smoothing, regenerative energy handling, and high-speed charge–discharge circuits, offering predictable performance tied directly to the datasheet-backed specifications and lifetime data.

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