LNU2W822MSEJBN

The LNU2W822MSEJBN is a screw‑terminal aluminum electrolytic capacitor from Nichicon’s LNU series designed for high‑voltage industrial power applications. It is a polarized, radial can capacitor optimized for inverter and regenerative circuits where high ripple handling, compact size, and elevated temperature endurance are required.

Key attributes include a rated capacitance of 8.2 mF at 450 V DC, an operating temperature range of −40 °C to +105 °C, and a demonstrated load life of 5000 hours with rated ripple current at 105 °C.

Key Features

• Capacitance & Voltage — Rated capacitance: 8.2 mF; rated voltage: 450 V DC; capacitance tolerance ±20% (120 Hz, 20 °C).
• High‑Temperature Endurance — Designed for continuous operation from −40 °C to +105 °C with a load life of 5000 hours when D.C. bias plus rated ripple current is applied at 105 °C.
• High Ripple Current Capability — Ripple current specifications: 24.7 A at 120 Hz and 34.58 A at 10 kHz, supporting heavy ripple loading in power electronics.
• Screw Terminal Construction — Radial can with screw terminals for robust, low‑impedance connections in industrial assemblies.
• Series Performance Characteristics — LNU series is specified for high voltage (rated voltage range up to DC 525 V) and smaller size compared with the LNT series, and is built to cope with high‑speed charge–discharge loading and high‑frequency regenerative voltages.
• Electrical Reliability — Leakage current after 5 minutes at 20 °C is limited to not more than 3√C·V (μA) or 5 mA (whichever is smaller); insulation resistance greater than 100 MΩ at DC 500 V between terminal and bracket; AC 2500 V, 1 minute voltage proof between terminal and bracket.
• Endurance & Stability — After 5000 hours at 105 °C under rated conditions, capacitance change is within ±20% of initial value, tan δ remains ≤200% of initial specified value, and leakage current is less than or equal to initial specified value. Shelf life and charge–discharge endurance statements are provided at series level in the datasheet.
• Regulatory Compliance — Compliant to the RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

• Industrial Power Supplies — DC link and bulk energy storage in inverter power supplies where high voltage and high ripple handling are required.
• Motor Drive & Regenerative Circuits — Supports high‑frequency regenerative voltages for AC servomotor and general inverter systems, including rapid charge–discharge cycles.
• High‑Frequency Energy Storage — Suited to circuits experiencing high‑speed charge–discharge events and elevated ripple currents at kHz frequencies.

Unique Advantages

• High‑Voltage Capability: Rated at 450 V DC with series support up to 525 V, enabling use in a broad range of industrial inverter and power electronics designs.
• Robust Ripple Handling: High rated ripple currents (24.7 A at 120 Hz, 34.58 A at 10 kHz) reduce heating and extend service life under heavy AC loading.
• Engineered for Elevated Temperatures: 105 °C maximum operating temperature and a 5000‑hour load life at that temperature provide predictable long‑term performance in demanding thermal environments.
• Screw‑Terminal Mechanical Reliability: Radial can with screw terminals provides secure electrical and mechanical connection for industrial assemblies and serviceability.
• Measured Endurance & Stability: Endurance, shelf life, and charge–discharge behaviors are specified with clear limits on capacitance change, tan δ, and leakage current, supporting predictable design margins.
• RoHS Compliance: Meets RoHS directive requirements for restricted substances.

Why Choose LNU2W822MSEJBN?

The LNU2W822MSEJBN combines high capacitance and elevated voltage rating with screw‑terminal construction and a series pedigree focused on inverter and regenerative applications. Its high ripple capacity, 105 °C endurance rating with a 5000‑hour load life, and specified electrical reliability metrics make it a practical choice for industrial power supplies, motor drives, and high‑frequency energy storage designs where predictable performance under stress is required.

This part is well suited to engineers and designers specifying components for heavy‑duty power electronics who need clear, verifiable endurance and ripple specifications from a recognized manufacturer.

Request a quote or contact sales to discuss pricing, availability, and qualification details for the LNU2W822MSEJBN for your specific application needs.