LNU2W682MSEH

The LNU2W682MSEH from Nichicon is a high-voltage aluminum electrolytic capacitor in a screw-terminal radial can, rated 450 V and 6800 µF with polarized terminals. Engineered for industrial power electronics, it is suited to inverter circuitry and high-frequency regenerative voltage applications such as AC servomotors and general inverters.

Designed for demanding environments, the capacitor supports operation to 105°C, provides high ripple current capability, and offers a long load life under rated ripple at elevated temperature, making it appropriate for DC link and bulk storage in power conversion systems.

Key Features

• Electrical Capacity — 6800 µF nominal capacitance with ±20% tolerance (120 Hz, 20°C) and polarized construction for DC energy storage and smoothing.
• High Rated Voltage — 450 V nominal rating; series rated voltage range available up to DC 525 V for high-voltage power designs.
• High Ripple Current Handling — Rated ripple current of 23.4 A at 120 Hz and 32.76 A at 10 kHz to support high-load and high-frequency operation.
• Thermal and Lifetime Performance — Operating temperature range −40°C to +105°C with a specified load life of 5000 hours at 105°C under rated ripple current.
• Robust Endurance — Series-level endurance data includes charge–discharge endurance (50 million cycles at specified ΔV and 3 Hz) and defined limits for capacitance change, dissipation factor, and leakage after stress.
• Mechanical Package — Radial can with screw terminals for secure, low-impedance connections; physical size listed as L: 17 × D: 7.62 cm with screw-terminal mounting for industrial assemblies.
• Regulatory Compliance — Compliant with the RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

• Industrial Inverters & Power Supplies — Bulk DC link and smoothing in inverter circuitry where high voltage and long-term thermal endurance are required.
• AC Servo Drives — Energy buffering and regenerative voltage handling for servomotor systems operating with frequent charge/discharge cycles.
• Regenerative Braking Systems — High-frequency regenerative voltage absorption and short-term energy capture in motor drive systems.
• High-Frequency Power Electronics — Applications requiring high ripple-current tolerance at both line frequency and elevated switching frequencies.

Unique Advantages

• High-voltage capability: 450 V nominal rating (series up to 525 V) enables use in higher-voltage DC link applications without series stacking.
• Compact high-voltage form factor: Series is described as higher-voltage and smaller than comparable models, helping reduce enclosure footprint for power assemblies.
• Designed for high ripple and fast charge/discharge: Specified ripple current at 120 Hz and 10 kHz plus endurance to repeated charge–discharge cycles supports aggressive power cycling.
• Long elevated-temperature life: 5000 hours at 105°C under rated ripple current provides predictable lifetime for industrial deployments.
• Secure screw-terminal mounting: Robust mechanical connection suited for industrial wiring and high-current bus configurations.
• RoHS compliant: Meets RoHS directive requirements for restricted substances.

Why Choose LNU2W682MSEH?

The LNU2W682MSEH positions itself as a durable, high-voltage electrolytic solution for industrial power designs that demand high ripple-current capability, thermal endurance, and secure screw-terminal connections. Its 450 V/6800 µF rating, combined with series-level support for up to DC 525 V and proven endurance characteristics, makes it a practical choice for inverter DC links, servo drives, and regenerative systems.

Manufactured by Nichicon, this capacitor suits engineers and procurement teams building robust, long-life power conversion systems where predictable performance at elevated temperature and frequent charge–discharge cycling are key design drivers.

Request a quote or submit an inquiry to discuss pricing, availability, and how LNU2W682MSEH can fit into your power electronics design.