LNU2G822MTEJ

The LNU2G822MTEJ is an aluminum electrolytic capacitor in a screw‑terminal, stud‑bolt mount package engineered for high‑voltage industrial power electronics. It provides 8.2 mF capacitance at a 400 V DC rating and is part of the Nichicon LNU series designed for inverter and regenerative circuit applications.

Built for elevated thermal and electrical stress, this capacitor supports operation from −40 °C to 105 °C, long endurance under ripple loading, and robust charge/discharge cycling suitable for inverter, servo and industrial drive environments.

Key Features

• Electrolytic Core – High Voltage: 8.2 mF capacitance rated at 400 V DC (series rated up to DC 525 V), delivering bulk energy storage for high‑voltage power stages.
• High Temperature Endurance: Designed for operation up to 105 °C with a specified load life of 5000 hours under rated ripple current at 105 °C.
• High Ripple Current Capability: Rated ripple current of 23.1 A at 120 Hz and 32.34 A at 10 kHz, supporting heavy AC and high‑frequency loading in inverter and regenerative circuits.
• Charge/Discharge Durability: Engineered to cope with high‑speed charge/discharge loading; series endurance tests include extensive charge/discharge cycling (50 million cycles as specified for the series).
• Robust Mechanical Package: Stud bolt mount with screw terminals (radial can) for secure electrical and mechanical connection in power assemblies; nominal body dimensions L: 12.5 × D: 9 cm with a maximum seated height of 4.921 inch.
• Electrical Stability and Leakage: Capacitance tolerance ±20% (120 Hz, 20 °C); leakage current limits per datasheet (after 5 minutes ≤ 3√CV μA or 5 mA, whichever is smaller).
• RoHS Compliant: Meets RoHS directive (2011/65/EU, (EU)2015/863), suitable for regulated product designs.

Typical Applications

• Industrial Inverters: Bulk energy storage and DC bus smoothing for general inverter power supplies, benefiting from the 400 V rating and high ripple current capability.
• AC Servo Drives: Handling high‑frequency regenerative voltage and charge/discharge cycles in servomotor drives where frequent energy recovery occurs.
• Motor Control Systems: Filtering and energy buffering in motor controllers and drive electronics that require sustained performance at elevated temperature.
• High‑Frequency Power Stages: Suited to applications with high‑frequency ripple and regenerative loads thanks to rated ripple current at 10 kHz and proven charge/discharge endurance.

Unique Advantages

• High Voltage in a Compact Form: 400 V rating with series designs up to 525 V provides high‑voltage capability while maintaining a smaller footprint compared to earlier LNT designs.
• Designed for Elevated Thermal Stress: 105 °C maximum operating temperature and 5000‑hour load life under rated ripple ensure sustained performance in hot industrial environments.
• Exceptional Ripple Handling: High ripple current ratings at both low and high frequencies reduce temperature rise and support demanding inverter/regenerative workloads.
• Durable Mounting and Connection: Stud bolt mount and screw terminals provide secure mechanical fastening and reliable electrical contact for heavy‑duty power assemblies.
• Proven Charge/Discharge Robustness: Series qualification for extensive charge/discharge cycles aligns with applications that experience frequent energy recovery and discharge events.

Why Choose LNU2G822MTEJ?

The LNU2G822MTEJ is positioned for industrial power designs that require high‑voltage bulk capacitance with proven endurance under ripple and charge/discharge stress. Its combination of 400 V rating, high ripple current capability, and 105 °C endurance makes it well suited for inverter, servo and motor‑drive systems that operate in demanding thermal and electrical environments.

Engineers specifying this part benefit from series‑level assurances including long load life, defined leakage limits, and charge/discharge endurance, providing predictable performance for production power electronics and regenerative energy circuits.

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