LNU2W153MSEJ

The LNU2W153MSEJ is an aluminum electrolytic capacitor in a screw-terminal radial can designed for industrial power electronics. With 15,000 µF capacitance at a 450 V rating and an operating range from −40 °C to +105 °C, it targets DC-link, inverter and regenerative power circuits that require high-voltage energy storage and robust ripple handling.

Part of Nichicon’s LNU series, this device delivers long-life operation under ripple stress (5,000 hours at 105 °C) and is suitable for high-frequency charge–discharge and regenerative voltage conditions encountered in AC servomotor and general inverter systems. The part is RoHS compliant.

Key Features

• Capacitance & Voltage — 15,000 µF nominal capacitance with a 450 V rated voltage, providing significant DC energy storage for smoothing and DC-link applications.
• High-temperature Endurance — Rated for operation from −40 °C to +105 °C with a specified load life of 5,000 hours at 105 °C under rated ripple current.
• Ripple Current Performance — Rated ripple current of 34.5 A at 120 Hz and 48.3 A at 10 kHz, supporting both low- and high-frequency ripple environments.
• Construction & Mounting — Screw terminal radial can package for secure, low-impedance connections in panel- or bracket-mounted industrial assemblies.
• Electrical Reliability — Leakage current limit after 5 minutes is specified as not more than 3√(C·V) µA or 5 mA (whichever is smaller); insulation resistance greater than 100 MΩ at DC 500 V between terminal and bracket.
• Durability & Charge–Discharge Endurance — Designed to withstand high-speed charge–discharge cycles and series-specified endurance tests including 50 million charge–discharge cycles under defined conditions.
• Regulatory Compliance — Compliant with RoHS requirements (2011/65/EU, (EU)2015/863).

Typical Applications

• Industrial Inverters — DC-link smoothing and energy buffering in inverter power stages for motor drives and variable-frequency drives.
• Regenerative Power Circuits — Handling high-frequency regenerative voltages in AC servomotor systems and energy-recovery circuits.
• Industrial Power Supplies — Bulk energy storage and ripple suppression where sustained high voltage and elevated operating temperature are required.

Unique Advantages

• Substantial energy storage: 15,000 µF at 450 V supplies large DC-link capacitance for smoothing and transient energy needs.
• High ripple tolerance: Specified ripple currents of 34.5 A (120 Hz) and 48.3 A (10 kHz) enable reliable performance under both mains-frequency and high-frequency ripple conditions.
• Long operating life at elevated temperature: 5,000-hour load life at 105 °C under rated ripple current provides predictable longevity for continuous industrial use.
• Robust electrical integrity: Leakage current and insulation resistance specifications support stable performance and ease system-level qualification.
• Secure, serviceable connections: Screw-terminal radial can package simplifies installation and maintenance in industrial assemblies.
• Regulatory readiness: RoHS compliance supports adoption in regulated markets.

Why Choose LNU2W153MSEJ?

The LNU2W153MSEJ combines large capacitance and high-voltage capability with proven endurance under ripple stress, making it a practical choice for DC-link, inverter and regenerative applications in industrial environments. Its screw-terminal radial package and defined electrical limits (leakage, insulation resistance and ripple ratings) provide clear, verifiable performance metrics for design and procurement decisions.

Engineered as part of Nichicon’s LNU series for high-voltage, high-frequency industrial use, this capacitor is suited for designers who need robust energy storage, reliable long-term operation at elevated temperatures, and simple installation in power-electronics systems.

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