LNU2G682MSEHBB

The LNU2G682MSEHBB is a screw‑terminal aluminum electrolytic capacitor from Nichicon’s LNU series, featuring a 6.8 mF (6800 µF) capacitance and a 400 V rated voltage. Engineered for industrial power electronics, it is suited for inverter circuitry, high‑frequency regenerative voltages for AC servomotors and general inverter applications.

Designed for high‑voltage operation with a compact footprint, the part supports elevated temperature operation up to 105°C, a rated voltage range to DC 525 V in the LNU series, and a load life of 5000 hours under rated ripple at 105°C.

Key Features

• Capacitance & Voltage — 6.8 mF (6800 µF) nominal capacitance with a 400 V rated voltage; series rated voltage range extends up to DC 525 V.
• High‑temperature endurance — Rated for operation from −40°C to +105°C with a specified load life of 5000 hours at 105°C under rated ripple conditions.
• Screw‑terminal, radial can package — Robust screw terminal mounting for secure connections in industrial power assemblies; radial can construction with screw terminals simplifies installation and serviceability.
• High ripple current capability — 19.5 A at 120 Hz and 27.3 A at 10 kHz, enabling effective smoothing and energy handling in both low‑ and high‑frequency circuits.
• Charge/discharge endurance — Specified to meet performance requirements after 50 million charge–discharge cycles (3 Hz) under defined ΔV conditions.
• Electrical reliability — Insulation resistance >100 MΩ at DC 500 V between terminal and bracket and voltage proof of AC 2500 V for 1 minute between terminal and bracket.
• Leakage current specification — After 5 minutes at rated voltage, leakage current is ≤ 3√(C·V) μA or 5 mA, whichever is smaller.
• RoHS compliant — Conforms to the RoHS directive (2011/65/EU, (EU)2015/863).
• Compact high‑voltage design — LNU series described as "High Voltage / Smaller sized than LNT"; this part’s physical footprint is approximately L: 12.5 × D: 7.62 cm.

Typical Applications

• Industrial power supplies — Used for energy storage and filtering in inverter power supplies and industrial AC/DC systems.
• Inverter and motor drives — Supports DC link and smoothing functions in inverter circuitry for AC servomotor and general inverter systems.
• Regenerative braking systems — Suited for high‑frequency regenerative voltage environments encountered in motor regeneration and energy recovery circuits.
• High‑speed charge/discharge circuits — Intended for applications requiring repeated charge/discharge cycles with specified endurance.

Unique Advantages

• High‑voltage capability: Rated at 400 V with series ratings up to DC 525 V, enabling use in demanding DC link and inverter topologies.
• High‑temperature lifetime: 5000 hours at 105°C under rated ripple current, supporting long service life in thermally challenging industrial environments.
• Robust ripple handling: High ripple current ratings at both low (120 Hz) and high (10 kHz) frequencies improve smoothing performance across switching regimes.
• Durable mechanical mounting: Screw‑terminal radial can design provides secure electrical connections and straightforward field serviceability.
• Engineered for repetitive cycling: Meets endurance criteria after extensive charge/discharge cycling (50 million cycles at 3 Hz), making it suitable for frequent energy transfer applications.
• Regulatory compliance: RoHS compliance supports environmental requirements for industrial equipment.

Why Choose LNU2G682MSEHBB?

The LNU2G682MSEHBB combines high capacitance and high‑voltage capability in a compact screw‑terminal package designed for industrial inverter and regenerative applications. Its validated endurance—5000 hours at 105°C under ripple load plus charge/discharge cycle qualification—addresses reliability needs in demanding power‑electronics designs.

This part is suited for engineers and procurement teams designing or maintaining inverter power supplies, motor drives, and regenerative systems who require a robust, high‑voltage electrolytic capacitor with strong ripple handling and thermal endurance backed by Nichicon’s LNU series specifications.

Request a quote or contact sales to discuss availability, lead time and pricing for LNU2G682MSEHBB and to get assistance selecting the right configuration for your application.