LNU2W472MSEGBN

The LNU2W472MSEGBN is a screw-terminal aluminum electrolytic capacitor from Nichicon’s LNU series, offering 4700 µF capacitance at a 450 V rating. Engineered for high-voltage industrial power systems, it targets inverter circuitry, regenerative drives and other applications that require durable, high-frequency charge–discharge handling.

Designed for demanding thermal and electrical environments, this radial can with screw terminals provides high-voltage capability in a smaller-sized package, with a rated operating range to 105°C and a rated voltage range within the LNU series up to DC525V.

Key Features

• Capacitance & Voltage — 4700 µF nominal capacitance with a 450 V rated voltage and ±20% tolerance (120 Hz, 20°C).
• Screw-Terminal Radial Can — Robust screw terminal mounting for secure connections in industrial power assemblies.
• High-Temperature Endurance — Rated for operation from −40°C to +105°C with a load life of 5000 hours at 105°C when subjected to rated ripple current.
• High Ripple Current Capability — Supports 18.5 A ripple at 120 Hz and 25.9 A at 10 kHz, suitable for high-frequency inverter and regenerative circuits.
• Charge–Discharge Endurance — Qualified for long-term charge–discharge behavior: testing includes 50 million cycles (ΔV = rated voltage ±0.3, 3 Hz) with specified retention limits.
• Leakage and Insulation Specifications — Leakage current after 5 minutes is ≤ 3√CV (µA) or 5 mA, whichever is smaller; insulation resistance >100 MΩ at DC 500 V between terminal and bracket.
• Withstands High Withstand Voltage — No abnormality on AC 2500 V for 1 minute between terminal and bracket.
• RoHS Compliant — Conforms to the RoHS directive (2011/65/EU,(EU)2015/863).
• Compact High-Voltage Form Factor — Smaller-sized alternative within the LNU family compared to larger high-voltage types, with physical size L: 16.5 cm × D: 6.35 cm (height seated max 6.496 in).

Typical Applications

• Industrial Power Supplies: Used in inverter front-ends and DC bus filtering to handle high-voltage DC energy and ripple currents.
• AC Servomotor Drives (Regeneration): Suited for high-frequency regenerative voltage handling in servo and motion-control systems.
• General Inverters: Provides energy storage and high-speed charge–discharge support for inverter circuits in industrial equipment.

Unique Advantages

• High-Voltage Capability: 450 V rating (series up to DC525 V) enables use in elevated DC bus and inverter architectures without stepping down voltage requirements.
• Engineered for High Ripple and HF Operation: Specified ripple current at both 120 Hz and 10 kHz makes it suitable for both low- and high-frequency power domains.
• Long-Term Thermal Reliability: 5000-hour load life at 105°C under rated ripple current provides predictable lifetime behavior in hot industrial environments.
• Robust Mechanical Termination: Screw terminals support secure electrical and mechanical connections for assembly and maintenance in industrial systems.
• Defined Electrical Limits: Clear leakage current, insulation resistance and voltage proof limits support deterministic design margins and safety verifications.

Why Choose LNU2W472MSEGBN?

The LNU2W472MSEGBN combines high-voltage performance with a smaller high-capacitance package and screw-terminal robustness, making it well suited for industrial inverter, regenerative drive and power-supply designs that require dependable energy storage and high ripple handling. Its 5000-hour endurance at 105°C, defined leakage and insulation specifications, and charge–discharge qualification support predictable, long-term performance in thermally and electrically demanding systems.

This capacitor is a practical choice for engineers specifying high-voltage DC bus and regenerative components where compact size, secure termination and verified endurance characteristics are required.

Request a quote or submit an inquiry to receive pricing and availability information for LNU2W472MSEGBN and to discuss suitability for your specific power-electronics application.