LNU2W472MSEGBB

The LNU2W472MSEGBB is a screw‑terminal aluminum electrolytic capacitor from Nichicon’s LNU series. It provides a high‑voltage, compact solution with screw‑terminal mounting for industrial power electronics where robust energy buffering and high ripple handling are required. Typical markets include industrial power supplies, inverter circuitry and regenerative drive systems.

Built for elevated operating conditions, this polarized capacitor is specified for operation from −40°C to +105°C and delivers a nominal capacitance of 4.7 mF with a rated voltage of 450 V DC. It combines high ripple current capability and long load life for demanding charge/discharge and high‑frequency applications.

Key Features

• Capacitance and Voltage — 4.7 mF nominal capacitance with a rated voltage of 450 V DC; capacitance tolerance ±20%.
• Screw‑Terminal Mounting — Radial can with screw terminals for secure electrical and mechanical connections in industrial assemblies.
• High Operating Temperature — Rated for continuous operation up to +105°C to support high‑temperature power electronics environments.
• Long Load Life — Specified endurance of 5000 hours at 105°C under rated ripple current conditions.
• High Ripple Current Capability — 18.5 A at 120 Hz and 25.9 A at 10 kHz, supporting high‑frequency inverter and regenerative workloads.
• Wide Temperature Range & Low‑Temp Stability — Operating range −40°C to +105°C; impedance stability at −40°C is characterized for the 400–525 V range (Z(−40°C)/Z(+20°C) = 8).
• Charge/Discharge Endurance — Designed to tolerate high‑speed charge/discharge behavior; series qualification includes endurance testing for 50 million cycles (ΔV ≈ rated voltage ±0.3, 3 Hz cycle).
• Polarized Electrolytic Construction — Typical polarized aluminum electrolytic characteristics for energy storage and bulk decoupling.
• RoHS Compliant — Conforms to the RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

• Industrial Inverters — Bulk energy storage and ripple smoothing for inverter DC link stages in industrial drives and power supplies.
• Regenerative AC Servomotor Drives — Handles high‑frequency regenerative voltages and high‑speed charge/discharge cycles in servo and motion control systems.
• High‑Frequency Power Supplies — Supports elevated ripple currents and high‑frequency operation in switching power supplies and converters.
• General Power Conditioning — Energy buffering and decoupling in industrial power electronics requiring long life at elevated temperatures.

Unique Advantages

• High‑Voltage Capability: 450 V DC rating (series up to 525 V) enables use in high‑voltage DC link and inverter circuits without compromise to form factor.
• Compact, Screw‑Terminal Packaging: Radial can with screw terminals provides secure, serviceable connections while minimizing board footprint compared with larger high‑voltage options.
• Robust Thermal and Endurance Performance: 105°C rating and 5000‑hour load‑life specification support continuous operation in harsh industrial environments.
• High Ripple and HF Performance: Specified ripple currents at 120 Hz and 10 kHz make the part suitable for both low‑ and high‑frequency power stages and regenerative circuitry.
• Designed for Charge/Discharge Stress: Series testing for tens of millions of charge/discharge cycles indicates suitability for applications with frequent energy transfer events.
• Regulatory Compliance: RoHS conformity supports deployment in regions and projects requiring restricted‑substance compliance.

Why Choose LNU2W472MSEGBB?

The LNU2W472MSEGBB positions itself as a purpose‑built choice for industrial power designs that require high‑voltage bulk capacitance in a screw‑terminal form factor. Its combination of 450 V rating, 4.7 mF capacitance, elevated operating temperature and tested endurance addresses common requirements in inverter, regenerative drive and high‑frequency power supply applications.

Engineers specifying this capacitor can expect a proven aluminum electrolytic solution that balances ripple handling, thermal endurance and mechanical reliability for long‑life industrial systems. It is suited to designs where secure screw connections and compact high‑voltage energy storage reduce assembly risk and support maintainable power subsystems.

Request a quote or submit an RFQ for LNU2W472MSEGBB to receive pricing and availability information for your design or production requirements.