LNU2H682MSEJ

The LNU2H682MSEJ is a screw-terminal aluminum electrolytic capacitor designed for high-voltage industrial power applications. It is a 6800 µF (6.8 mF), 500 V polarized large-can capacitor in the Nichicon LNU series, optimized for inverter and regenerative circuits where high ripple handling and extended life at elevated temperature are required.

With a rated operating range of −40 °C to 105 °C and a load life of 5000 hours at 105 °C, this part provides stable capacitance and controlled dissipation for demanding power electronic systems.

Key Features

• High Capacitance & Voltage: 6800 µF nominal capacitance at a 500 V DC rating for bulk energy storage and DC-link applications.
• Screw Terminal Package: Radial can with screw terminals for secure, low-impedance connections and easy installation in power assemblies.
• High Ripple Current Capability: 18.5 A at 120 Hz (low frequency) and 25.9 A at 10 kHz (high frequency) to withstand heavy AC ripple and high-speed charge–discharge cycles.
• Robust Endurance: Rated life of 5000 hours at 105 °C under rated ripple conditions; capacitance remains within specified limits after endurance testing.
• Controlled Loss & Leakage: Dissipation factor (tan δ) 0.2 (measured at 20 °C, 120 Hz) and specified leakage current (up to 5000 µA) for predictable performance in power designs.
• Wide Temperature Range: Operational from −40 °C to 105 °C to match typical industrial environmental requirements.
• RoHS Compliant: Conforms to applicable RoHS directives.

Typical Applications

• Industrial Inverters: DC-link and energy storage in inverter power stages where high-voltage bulk capacitance and ripple endurance are needed.
• AC Servomotor Drives: Regenerative voltage buffering and high-speed charge–discharge handling for servo and motion-control systems.
• Power Supplies: Bulk filtering and decoupling in high-voltage industrial power supplies and converters.
• High-Frequency Regenerative Circuits: Applications that require sustained high-frequency ripple current capability (e.g., 10 kHz) for reliable operation.

Unique Advantages

• High-Voltage Energy Storage: 500 V rating provides headroom for DC-link and high-voltage power architectures.
• Designed for High Ripple Loads: Specified low- and high-frequency ripple current ratings support both mains-frequency and switching-frequency stress.
• Long Thermal Endurance: 5000 hours at 105 °C ensures longevity in thermostressed industrial environments.
• Secure Mechanical Termination: Screw terminals simplify assembly and offer reliable electrical and mechanical contact for power cabling.
• Predictable Electrical Behavior: Specified tan δ and leakage current at standard measurement conditions enable deterministic design margins.
• Regulatory Compliance: RoHS conformity supports modern environmental requirements for industrial systems.

Why Choose LNU2H682MSEJ?

The LNU2H682MSEJ positions itself as a robust, high-voltage bulk capacitor for industrial power electronics that require sustained ripple handling and long-term thermal endurance. Its combination of 6800 µF capacitance, 500 V rating, screw-terminal packaging, and 5000-hour life at 105 °C makes it well suited to DC-link, inverter, and regenerative applications where reliable energy storage and repeatable performance matter.

Engineers specifying this capacitor benefit from clearly defined electrical characteristics—ripple current ratings at both low and high frequency, dissipation factor, leakage limits, and RoHS compliance—which simplify design validation and procurement for medium- to high-power industrial systems.

Request a quote or submit an inquiry to get pricing and availability for LNU2H682MSEJ and to discuss integration details for your specific application.