LNU2G682MSEHBN

The LNU2G682MSEHBN is a screw-terminal aluminum electrolytic capacitor designed for industrial power applications. It provides 6.8 mF capacitance at a 400 V rating, a wide operating temperature range down to −40 °C and up to 105 °C, and is optimized for inverter and regenerative power circuitry.

Built for high-voltage, high-frequency environments, this part delivers long load life and robust charge–discharge endurance, making it suitable for inverter power supplies, AC servomotor drives and other applications that demand reliable high-current ripple handling. The device is RoHS compliant.

Key Features

• Capacitance & Voltage — 6.8 mF (6800 µF) nominal capacitance with a 400 V rated voltage; capacitance tolerance ±20% (120 Hz, 20 °C).
• High-temperature Endurance — Rated for operation from −40 °C to +105 °C with a load life of 5000 hours at 105 °C under applied ripple current.
• High ripple-current capability — Supports 19.5 A at 120 Hz and 27.3 A at 10 kHz, enabling effective smoothing and energy handling in high-frequency circuits.
• Screw-terminal mounting — Radial can with screw terminals for secure, low-impedance connections in power assemblies.
• Mechanical footprint — Compact high-voltage form factor: L 12.5 cm × D 7.62 cm; maximum seated height 4.921 inch, designed to save space compared to larger high-voltage alternatives in the LNU series.
• Reliability and safety tests — Insulation resistance greater than 100 MΩ at DC 500 V between terminal and bracket; voltage proof AC 2500 V for 1 minute between terminal and bracket; leakage current after 5 minutes ≤ 3√(C·V) µA or 5 mA (whichever is smaller) at 20 °C.
• Charge–discharge endurance — Specified to meet performance requirements after 50 million charge–discharge cycles (3 Hz) as defined in the product datasheet.
• Regulatory — Compliant with the RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

• Industrial Inverter Power Supplies — Bulk energy storage and smoothing in inverter front-ends where high DC voltage and sustained ripple current are present.
• AC Servomotor Drives — Energy buffering and regenerative voltage handling for servo amplifiers and motor drive systems.
• Regenerative Braking Circuits — High-frequency regenerative voltage support in systems that require rapid charge–discharge cycles.
• High-frequency Power Converters — Filtering and decoupling in high-voltage, high-frequency converter stages that demand elevated ripple-current performance.

Unique Advantages

• High-voltage capability in a compact package: Provides 400 V rated performance with a smaller footprint compared to comparable high-voltage models in the series, aiding denser power assembly layouts.
• Designed for heavy ripple loading: Specified ripple-current ratings at both low and high frequencies reduce thermal stress and improve system stability under continuous ripple conditions.
• Long operational life at elevated temperature: 5000 hours at 105 °C under rated ripple stresses supports durable operation in thermally demanding installations.
• Robust electrical safety margins: High insulation resistance and AC voltage proof ratings between terminal and bracket improve reliability and safety in high-voltage systems.
• Screw-terminal convenience: Facilitates secure mechanical and electrical connections for field serviceability and reliable busbar or cable terminations.
• Endurance to repeated cycling: Specified to meet performance criteria after intensive charge–discharge cycling, making it suitable for regenerative and pulsed-power applications.

Why Choose LNU2G682MSEHBN?

The LNU2G682MSEHBN balances high capacitance and high-voltage capability with a compact, screw-terminal package tailored to industrial power systems. Its combination of sustained ripple-current ratings, 5000-hour high-temperature life, and validated charge–discharge endurance addresses the reliability demands of inverter, servo drive, and regenerative applications.

Manufactured by Nichicon and compliant with RoHS, this capacitor is well suited for engineers specifying components for robust, long-lived high-voltage power designs that require secure terminations and dependable performance under continuous ripple and frequent cycling.

If you would like pricing, lead-time details or a custom quote for LNU2G682MSEHBN, please request a quote or contact sales to discuss your application requirements and volume availability.