LNU2G332MSEH

The LNU2G332MSEH is a screw-terminal aluminum electrolytic capacitor from Nichicon’s LNU series, specified at 3.3 mF (3300 µF) and a rated voltage of 400 V DC. It is designed for high-voltage industrial power applications where robust ripple handling, long endurance and compact high-voltage packaging are required.

Typical use cases include industrial inverter power supplies, high-frequency regenerative voltage circuits for AC servomotors and other high-voltage inverter systems. The part combines high ripple current capability with a smaller form factor compared to the LNT series, delivering reliable performance up to 105°C.

Key Features

• Capacitance & Voltage — Rated capacitance 3.3 mF (3300 µF) with a rated voltage of 400 V DC and capacitance tolerance ±20% (120 Hz, 20°C).
• High Ripple Current Capability — Specified ripple current of 13.1 A at 120 Hz and 18.34 A at 10 kHz for demanding power conditioning and inverter duty cycles.
• Endurance & Thermal Performance — Load life of 5000 hours at 105°C when subjected to rated ripple current; operating temperature range −40°C to +105°C.
• Loss Angle (tan δ) & Leakage — Specified tan δ of 0.2 and leakage current limits per the datasheet (≤ 3√CV μA or 5 mA after 5 minutes, whichever is smaller) for predictable electrical behavior.
• Package & Mounting — Radial can with screw terminals (suitable for M5 nominal bolt on the 76.2 mm diameter case) for secure, serviceable connections in high-voltage assemblies.
• Smaller High-Voltage Form Factor — Designed to provide high-voltage capability in a reduced size compared to the LNT series; nominal dimensions L: 75 mm × D: 76.2 mm (height seated max 2.953 inch).
• Regulatory Compliance — RoHS compliant (2011/65/EU, (EU)2015/863).

Typical Applications

• Industrial inverter power supplies — Energy storage and smoothing for inverter front-ends and DC link circuits in industrial power systems.
• AC servomotor regenerative circuits — Handling high-frequency regenerative voltages and charge–discharge cycles typical of servo drive systems.
• General inverter systems — Bulk capacitance and ripple filtering in general-purpose inverter and power-conversion modules.
• High-voltage industrial power applications — Where 400 V rating, high ripple capability, and 105°C endurance are required for reliable long-term operation.

Unique Advantages

• 400 V rating for high-voltage designs: Enables use in DC-link and inverter circuits where elevated voltage handling is required.
• High ripple current handling: 13.1 A at 120 Hz and 18.34 A at 10 kHz support demanding power-conditioning and fast charge–discharge scenarios.
• Long life at elevated temperature: 5000-hour endurance at 105°C provides predictable lifetime in hot industrial environments.
• Compact high-voltage footprint: Smaller-sized LNU construction delivers high-voltage capability in a reduced enclosure compared to the LNT series.
• Screw-terminal mounting: Radial can with screw terminals (M5 nominal bolt for the 76.2 mm diameter case) offers secure, serviceable connections for maintenance and assembly.
• RoHS compliance: Meets RoHS Directive requirements (2011/65/EU, (EU)2015/863) for regulated substances.

Why Choose LNU2G332MSEH?

The LNU2G332MSEH is positioned for industrial designers who need reliable, high-voltage bulk capacitance with strong ripple-current capability and extended endurance at 105°C. Its 400 V rating, 3.3 mF capacity and robust electrical characteristics make it suitable for inverter DC-link, regenerative and other high-voltage power applications where predictable long-term performance is essential.

Manufactured by Nichicon and built to the LNU series specifications, this capacitor delivers a balanced combination of voltage rating, ripple performance and a compact form factor—helping reduce system size while maintaining thermal and electrical robustness.

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