LQR2W472MSEG

The LQR2W472MSEG is an aluminum electrolytic capacitor in a screw-terminal can designed for high-voltage power applications. It provides 4.7 mF (4700 µF) capacitance at 450 V with a ±20% tolerance and is optimized for applications requiring high ripple handling and durable performance at elevated temperatures.

Typical market segments include industrial drives and inverters, power rectification circuits and other general-purpose high-voltage power systems where robust energy storage, high-frequency ripple handling and secure screw-terminal connections are required.

Key Features

• High capacitance and voltage: 4.7 mF (4700 µF) nominal capacitance at 450 V rated voltage, suitable for high-energy storage in high-voltage power subsystems.
• Screw terminal mounting: Radial can with screw terminals provides secure, low-inductance connections for high-current wiring and easy serviceability.
• High ripple current capability: Supported ripple currents of 16.5 A at 120 Hz (low frequency) and 23.1 A at 10 kHz (high frequency) for demanding AC and regenerative applications.
• Endurance at elevated temperature: Rated life of 5000 hours at 85°C under DC bias plus rated ripple current, enabling reliable operation in hot industrial environments.
• Dissipation factor (tan δ): Specified tan δ of 0.15 for predictable dissipation characteristics during operation.
• Leakage current: Specified leakage current of 4360 µA for the part, measured at standard conditions.
• Operating temperature range: −25°C to +85°C to support a wide range of industrial ambient conditions.
• Packaging and form factor: φ63.5 × 170 mm can (L: 17 × D: 6.35 cm) supplied in cardboard packing for mass-production handling.
• RoHS compliant: Conforms to RoHS requirements for restricted substances.

Typical Applications

• AC servo and inverter drives: Energy buffering and DC-link smoothing in drives that require high-voltage, high-ripple components for regenerative operation.
• Regenerative braking circuits: Handling high-frequency regenerative voltage and charge–discharge cycles in motor control systems.
• Voltage doubler / rectifier circuits: DC-link or filter capacitor in rectifier designs where stable high-voltage capacitance is needed.
• Industrial power supplies: Bulk energy storage and ripple suppression in general-purpose high-voltage power systems.

Unique Advantages

• High energy density at high voltage: 4700 µF at 450 V provides substantial stored energy for DC-link and buffering applications.
• Engineered for high ripple environments: 16.5 A (120 Hz) and 23.1 A (10 kHz) ripple ratings reduce temperature rise and extend operational stability under heavy AC stress.
• Robust mechanical connection: Screw-terminal can design enables secure, serviceable high-current terminations that simplify installation and maintenance.
• Designed for elevated-temperature endurance: 5000-hour life at 85°C under rated conditions supports long-term use in hot industrial enclosures.
• Predictable electrical loss behavior: Specified tan δ of 0.15 helps engineers account for dissipation in thermal and reliability calculations.
• Compliance and manufacturability: RoHS compliance and cardboard packing support regulatory needs and volume production logistics.

Why Choose LQR2W472MSEG?

The LQR2W472MSEG combines high capacitance and high-voltage capability with screw-terminal mounting and robust ripple current handling to meet the demands of industrial power systems. Its 5000-hour endurance at 85°C and specified leakage and dissipation characteristics provide predictable performance for designs that require durable DC-link and energy-buffer capacitors.

This part is well suited for engineers specifying capacitors for AC servo/inverter drives, regenerative circuits and high-voltage rectifier assemblies who need a dependable, serviceable capacitor form factor and clear electrical specifications from a recognized manufacturer.

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