LQR2W472MSEHBN

The LQR2W472MSEHBN is a Nichicon screw terminal aluminum electrolytic capacitor delivering 4700 µF of capacitance at a 450 V DC rating. It is a screw-terminal, radial can style capacitor from the LQR series designed for high-speed charge–discharge applications in industrial power systems.

Engineered for high ripple environments and voltage-fluctuating equipment, this capacitor targets applications such as inverter and AC servomotor regenerative circuits, rectifier/voltage-doubler stages, and other general-purpose industrial power systems that require high energy buffering and robust electrical connections.

Key Features

• High Capacitance & Voltage: 4700 µF (4.7 mF) rated at 450 V DC for substantial energy storage on high-voltage DC buses.
• Screw Terminal Mounting: Radial can with screw terminals (M5 nominal bolt) for secure, high-current mechanical and electrical connections in industrial assemblies.
• High Ripple Current Capability: Rated ripple current 16.3 A at 120 Hz (low frequency) and 22.82 A at 100 kHz (high frequency), supporting heavy AC ripple and fast charge–discharge cycles.
• Endurance and Charge–Discharge Reliability: Rated life of 5000 hours at 85°C under DC bias plus rated ripple current; specified for 20 million charge–discharge cycles (ΔV = rated voltage × 0.3, 3 Hz) at room temperature.
• Operational Temperature Range: −25°C to +85°C suitable for a wide range of industrial environments.
• Leakage Current Specified: Leakage current listed as 4360 µA after application of rated voltage (product-specific value).
• Tolerance and Polarization: Capacitance tolerance of −20% to +20% at 120 Hz, 20°C; polarized device for DC applications.
• Form Factor: Physical size φ76.2 × 130 mm (diameter × length) with radial can and screw terminals; shipped packaged in cardboard suitable for mass production handling.
• RoHS Compliant: Complies with RoHS directive as noted for the LQR series.

Typical Applications

• Industrial Motor Drives: Used in AC servomotor regenerative circuits to absorb and smooth high-frequency regenerative voltages during braking and direction changes.
• Inverters and Power Converters: Provides bulk energy storage and ripple handling for general inverter stages and equipment operating in voltage-fluctuating environments.
• Rectifier and Voltage-Doubler Circuits: Suitable for high-voltage rectifier sections and voltage-doubler topologies requiring large capacitance and robust DC voltage rating.
• High-Frequency Charge–Discharge Systems: Applied where high-speed charge–discharge behavior is required, supported by the LQR series endurance and ripple specifications.

Unique Advantages

• High Energy Density at 450 V: Large 4700 µF capacitance combined with a 450 V rating enables substantial DC-bus energy storage in a single component.
• Robust Connection Method: Screw terminal mounting provides reliable mechanical retention and low-resistance connections for high-current industrial installations.
• Designed for High Ripple Environments: Explicit low- and high-frequency ripple current ratings (16.3 A at 120 Hz, 22.82 A at 100 kHz) allow designers to specify the capacitor with confidence for demanding ripple conditions.
• Proven Endurance: 5000-hour rated life at 85°C under rated bias and ripple current, plus charge–discharge endurance testing, supports longevity in continuous-duty applications.
• Wide Operating Temperature Range: −25°C to +85°C operation covers many industrial ambient conditions without sacrificing specified performance.
• Compliance and Production-Ready Packaging: RoHS compliance and cardboard packaging for mass production handling simplify regulatory and manufacturing considerations.

Why Choose LQR2W472MSEHBN?

LQR2W472MSEHBN combines high capacitance, a 450 V rating, and screw-terminal robustness for industrial power systems where high ripple currents and reliable mechanical connections are required. Its 5000-hour life at 85°C and proven charge–discharge endurance make it suitable for continuous-duty inverter, motor-drive, and rectifier applications.

Designed by Nichicon as part of the LQR series for high-speed charge–discharge scenarios, this capacitor is appropriate for engineers specifying energy storage and smoothing components in high-voltage DC environments who need verifiable ripple, endurance, and temperature performance.

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