LNU2W153MSEJBN

The LNU2W153MSEJBN is an aluminum electrolytic capacitor in a screw-terminal radial can designed for high-voltage industrial power applications. It delivers 15,000 µF at 450 V with a 105°C category temperature rating and is part of Nichicon's LNU series optimized for inverter and regenerative circuits.

Built for demanding load and charge–discharge conditions, the device offers high ripple-current capability and long load life, making it suitable for industrial power supplies, AC servomotor regenerative systems and general inverter applications.

Key Features

• Capacitance & Rated Voltage — 15,000 µF nominal capacitance at 450 V DC, with a rated voltage range up to DC 525 V.
• High Temperature Endurance — Rated for operation from −40°C to +105°C with a load life of 5,000 hours at 105°C under DC bias plus rated ripple current.
• High Ripple Current — Supports 34.5 A ripple at 120 Hz and 48.3 A at 10 kHz, suitable for high-frequency and high-load applications.
• Screw Terminal, Radial Can — Screw terminal mounting for secure electrical and mechanical connection; radial can package with separate bracket supply.
• Charge–Discharge Robustness — Endurance verified for repeated charge–discharge behavior (specified 50 million cycles at 3 Hz in datasheet), with post-test limits on capacitance, tan δ and leakage current.
• Leakage Current Specified — After 5 minutes at rated voltage, leakage current is limited to 3√(C·V) µA or 5 mA, whichever is smaller (at 20°C).
• Insulation & Voltage Proof — Insulation resistance >100 MΩ at DC 500 V (terminal to bracket); withstands AC 2500 V for 1 minute without abnormality.
• RoHS Compliance — Conforms to the RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

• Industrial Power Supplies — Bulk energy storage and smoothing in inverter front ends where high voltage and long life are required.
• Inverter and Motor Drive Systems — DC link and regenerative circuits for AC servomotors and general inverters handling high-frequency regenerative voltages.
• High-Speed Charge–Discharge Circuits — Applications that require tolerance to rapid charge/discharge cycles and sustained ripple currents.

Unique Advantages

• High-Voltage Capability: Rated up to DC 525 V, enabling use in higher-voltage inverter and industrial power systems.
• Compact High-Performance Design: LNU series offers a smaller footprint than comparable high-voltage models while maintaining required electrical performance.
• Long Thermal Life: 5,000 hours at 105°C under rated conditions supports reliability in high-temperature power assemblies.
• High Ripple Handling: Measured ripple currents (34.5 A at 120 Hz, 48.3 A at 10 kHz) support sustained high-frequency operation and reduce thermal stress on upstream components.
• Robust Endurance and Verification: Endurance and charge–discharge tests in the datasheet define post-test limits for capacitance, tan δ and leakage, aiding predictable lifetime planning.
• Regulatory Compliance: RoHS conformity simplifies integration into designs subject to restricted-substance regulations.

Why Choose LNU2W153MSEJBN?

The LNU2W153MSEJBN positions itself as a practical high-voltage electrolytic solution for engineers building inverter and regenerative power systems. Its combination of 15,000 µF capacitance, 450 V rating (with series ratings up to DC 525 V), defined ripple performance, and a 5,000-hour 105°C load life provides measurable electrical reliability for industrial designs.

This part is appropriate for designers and procurement teams targeting robust DC link energy storage, high-frequency regenerative circuits and applications requiring predictable end-of-life behavior under elevated temperature and ripple stress. Its documented insulation, voltage-proof and leakage current specifications support system-level validation and reliability planning.

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