LNU2G332MSEG

The LNU2G332MSEG is a screw-terminal aluminum electrolytic capacitor from Nichicon’s LNU series, delivering 3300 µF at a 400 V DC rating. Built for industrial power electronics, it provides high-voltage bulk energy storage and robust ripple-current handling in a compact radial can with screw terminals.

Targeted at inverter circuitry and servo/motor-drive regenerative systems, this part combines high ripple capability, long-term endurance at elevated temperature, and RoHS compliance for reliable operation in demanding industrial applications.

Key Features

• Capacitance & Voltage: 3300 µF nominal capacitance with a 400 V DC rating and ±20% tolerance (120 Hz, 20°C).
• Screw-Terminal Package: Radial can with screw terminals for secure electrical and mechanical connections; bracket supplied separately.
• High Ripple Current Capacity: Rated ripple current of 13.6 A at 120 Hz and 19.04 A at 10 kHz to support high-frequency charge–discharge and regenerative loads.
• Low Loss Characteristic: Specified tan δ of 0.2 (measurement conditions per product specification).
• Leakage Current: Typical leakage current of 3440 µA (per product data).
• Endurance at Elevated Temperature: 5000 hours load life at 105°C when DC bias plus rated ripple current is applied, meeting LNU series endurance requirements.
• Operating Range: Specified for –40°C to +105°C operation for use in wide ambient temperature conditions.
• Compact High‑Voltage Form Factor: 63.5 mm diameter × 95 mm length housing provides high capacitance and voltage in a space-efficient can.
• RoHS Compliant: Manufactured to meet RoHS requirements.
• Polarized: Electrolytic, polarized construction for DC bulk storage applications.

Typical Applications

• Industrial Power Supplies: Bulk energy storage and filtering in inverter power stages to stabilize DC rails and manage high ripple currents.
• Motor Drives and Servo Systems: Support for regenerative voltage and rapid charge–discharge cycles in AC servomotor and drive circuits.
• Inverters and Variable-Frequency Drives: High-voltage smoothing and ripple absorption in general inverter applications.

Unique Advantages

• High-Voltage Energy Storage: 400 V rating provides capacity for DC bus applications without requiring multiple lower-voltage capacitors in series.
• Designed for High Ripple Loads: 13.6 A at 120 Hz and 19.04 A at 10 kHz ripple ratings reduce thermal stress and support high-frequency switching environments.
• Extended High‑Temperature Life: 5000-hour endurance at 105°C under rated conditions supports long-term reliability in hot enclosures.
• Robust Mechanical Connection: Screw-terminal mounting enables secure, low-resistance connections for high-current applications and simplifies field replacement.
• Compact Footprint for Voltage/CV: 63.5 mm diameter by 95 mm length offers a space-efficient solution for large capacitance at high voltage.
• Regulatory Compliance: RoHS-compliant construction aligns with environmental and regulatory requirements.

Why Choose LNU2G332MSEG?

The LNU2G332MSEG is positioned for engineers who need a high-voltage, high-capacitance electrolytic solution that withstands elevated temperatures and sustained ripple stresses. Its combination of 3300 µF at 400 V, significant ripple-current capability, and a 5000-hour endurance rating at 105°C makes it well suited to industrial inverter, motor-drive, and regenerative-power applications.

As part of Nichicon’s LNU series, this screw-terminal capacitor offers a compact high-voltage form factor and dependable electrical characteristics for designs that require robust DC bus smoothing and energy buffering under continuous load.

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