LNU2W472MSEHBB

The LNU2W472MSEHBB is a screw-terminal aluminum electrolytic capacitor designed for high-voltage industrial power applications. It delivers 4.7 mF (4700 µF) capacitance at a nominal 450 V rating with a compact, screw-terminal radial can package optimized for inverter and regenerative circuits.

Engineered for elevated temperatures and demanding ripple conditions, this capacitor is rated for operation from −40 °C to +105 °C, offers a rated voltage range up to DC525 V, and provides a 5000-hour load life at 105 °C under rated ripple. It is RoHS compliant and intended for use in inverter circuitry, AC servomotor regenerative systems and other industrial power supplies that require high-voltage, high-ripple endurance in a smaller footprint.

Key Features

• Capacitance & Voltage: 4.7 mF (4700 µF) nominal capacitance with a rated voltage of 450 V; rated voltage range up to DC525 V to support high-voltage power stages.
• High-Temperature Operation: Specified operating temperature range of −40 °C to +105 °C and a load life of 5000 hours at 105 °C when subjected to rated ripple current.
• High Ripple Current Capability: Rated ripple current of 17.9 A at 120 Hz and 25.06 A at 10 kHz for handling significant AC components in power-conversion and regenerative circuits.
• Mechanical & Mounting: Screw-terminal radial can package with M5 bolt interface; compact physical size L: 13 cm × D: 7.62 cm and a maximum seated height of 5.118 inches for space-constrained systems.
• Reliability & Endurance: Specified endurance includes capacitance change within 90% ±20%, tan δ ≤ 200% of initial, and leakage current ≤ initial specified value after 5000 hours at 105 °C under DC bias plus rated ripple current.
• Leakage Current Specification: After 5 minutes at rated voltage, leakage current is limited to 3√(C·V) µA or 5 mA, whichever is smaller (C: µF, V: V).
• Insulation & Voltage Proof: Insulation resistance greater than 100 MΩ at DC 500 V between terminal and bracket; withstands AC 2500 V for 1 minute between terminal and bracket without abnormality.
• Durability under Cycling: Designed to meet specification limits after 50 million charge–discharge cycles (charge–discharge testing per datasheet conditions).
• Environmental Compliance: Compliant with the RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

• Industrial Inverters: Energy storage and smoothing for inverter power supplies where high DC voltage and substantial ripple handling are required.
• AC Servomotor Regeneration: Filtering and energy buffering in high-frequency regenerative voltage circuits for AC servomotors and motion-control systems.
• High-Speed Charge–Discharge Systems: Applications requiring robust behavior under rapid charge–discharge cycles, benefiting from specified charge–discharge endurance.
• General Industrial Power Filtering: Bulk energy storage and ripple suppression in industrial power electronics and motor-drive assemblies.

Unique Advantages

• High-Voltage Capability: 450 V nominal with a rated range to DC525 V, enabling use in higher-voltage power stages without series stacking.
• Compact High-Voltage Form Factor: Described as "High Voltage, Smaller Sized" relative to other models in the series, helping reduce enclosure and system footprint.
• Robust Ripple Handling: High ripple current ratings at both low and high frequencies (17.9 A at 120 Hz; 25.06 A at 10 kHz) to support demanding switching environments.
• Long High-Temperature Life: 5000-hour load life at 105 °C under rated ripple current, providing predictable long-term performance in elevated-temperature installations.
• Proven Endurance: Capable of meeting specified electrical characteristics after extensive charge–discharge cycling (50 million cycles), supporting regenerative and fast-switching applications.
• Regulatory Compliance: RoHS compliant for environmental and supply-chain requirements.

Why Choose LNU2W472MSEHBB?

The LNU2W472MSEHBB combines a high nominal capacitance with elevated voltage capability and a compact screw-terminal radial can package, making it well suited for industrial inverter, regenerative, and high-ripple power designs. Its specified ripple ratings, insulation and voltage-proof characteristics, and a 5000-hour load life at 105 °C provide designers with quantifiable performance and endurance data to support reliable system design.

Manufactured by Nichicon, this part is targeted at engineers and procurement teams building industrial power-supply and motor-drive systems that require robust high-voltage bulk capacitance in a smaller footprint while maintaining RoHS compliance and well-defined endurance metrics.

Request a quote or contact sales to discuss LNU2W472MSEHBB for your application and obtain pricing, availability, and detailed specification support.