LNU2G332MTEH

The LNU2G332MTEH is a screw‑terminal aluminum electrolytic capacitor in Nichicon’s LNU series, rated 3.3 mF (3300 µF) at 400 V DC with a φ76.2 × 75 mm can. It is designed for industrial power electronics where high voltage handling, high ripple capability, and robust charge–discharge endurance are required.

Typical uses include industrial power supplies and inverter circuitry, including high‑frequency regenerative voltage for AC servomotors and general inverter applications. The part offers a rated voltage range in the series up to DC 525 V, a 5000‑hour load life at 105°C under rated ripple current, and RoHS compliance.

Key Features

• Capacitance & Voltage: 3.3 mF (3300 µF) nominal capacitance with a rated voltage of 400 V DC; capacitance tolerance ±20% (120 Hz, 20°C).
• Screw Terminal / Mounting: Stud bolt mount with screw terminals in a radial can package for secure high‑current connections.
• High‑Temperature Endurance: Rated for operation from −40°C to +105°C with a specified load life of 5000 hours at 105°C under applied ripple current.
• High Ripple Capability: Ripple current ratings of 13.1 A at 120 Hz and 18.34 A at 10 kHz, supporting both low‑ and high‑frequency power applications.
• Charge–Discharge Robustness: Designed to cope with high‑speed charge–discharge loading; series endurance includes performance after 50 million charge–discharge cycles.
• Electrical Reliability: Leakage current after 5 minutes is limited to 3√(C×V) µA or 5 mA (whichever is smaller); insulation resistance over 100 MΩ at DC 500 V between terminal and bracket; AC 2500 V, 1 minute voltage proof between terminal and bracket.
• Physical Size: Can dimensions φ76.2 × 75 mm (size listed as L: 7.5 × D: 7.62 cm) with a nominal stud/bolt arrangement compatible with M5 hardware for secure mounting.
• Regulatory Compliance: Compliant to the RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

• Industrial Inverters: Bulk energy storage and smoothing in inverter DC link circuits, leveraging the 400 V rating and high ripple capability.
• AC Servomotor Drives: Handling high‑frequency regenerative voltage and rapid charge–discharge cycles in servo and motion control systems.
• Power Supplies: Use in industrial power supplies requiring high voltage, high ripple endurance, and long operational life at elevated temperatures.

Unique Advantages

• High‑voltage capability: 400 V nominal rating (series rated up to DC 525 V) enables use in higher‑voltage DC bus and inverter applications.
• Compact high‑voltage form factor: LNU series positioning offers high voltage in a smaller can size relative to previous LNT series, aiding denser power assemblies.
• Designed for high ripple and high frequency: Specified ripple currents at both 120 Hz and 10 kHz support a wide range of switching and regenerative conditions.
• Long operational life at temperature: 5000 hours at 105°C under rated ripple current provides predictable durability in demanding thermal environments.
• Robust charge–discharge endurance: Endurance specifications include maintaining capacitance, tan δ, and leakage performance after extensive charge–discharge cycling.
• Safety and insulation measures: Insulation resistance and voltage proof tests between terminal and bracket reduce risk in high‑voltage assemblies.

Why Choose LNU2G332MTEH?

LNU2G332MTEH targets industrial power designers who need a high‑voltage, high‑ripple capacitor with proven endurance at elevated temperatures. Its combination of 3300 µF capacitance, 400 V rating, screw‑terminal mounting, and specified ripple performance makes it suitable for DC link, regenerative, and fast charge–discharge applications in inverter and motor‑drive systems.

Choosing this Nichicon LNU series part provides a component with defined electrical and mechanical characteristics—temperature range to 105°C, 5000‑hour load life, and RoHS compliance—helping engineers design reliable, maintainable power systems for industrial environments.

Request a quote or submit an inquiry to receive pricing and availability information for LNU2G332MTEH and to discuss suitability for your specific application needs.