LQR2W821MSECBN

The Nichicon LQR2W821MSECBN is a screw-terminal aluminum electrolytic capacitor providing 820 µF capacitance at a 450 V rating. It is a robust radial can with screw terminals designed for general-purpose power applications that require high-voltage energy storage and high ripple handling.

Engineered for demanding power-electronics environments, the LQR series is suitable for applications such as AC servomotor regenerative circuits, general inverters, equipment operating where voltage fluctuates, and voltage-doubler rectifier circuits. Key value propositions include high ripple-current capability, a 5000-hour rated life at 85°C, and packaging geared for mass production.

Key Features

• Electrical Performance — 820 µF capacitance with a 450 V rated voltage and a tolerance of -20% to +20%.
• Ripple Current Handling — Low-frequency ripple current of 3.9 A at 120 Hz and high-frequency ripple current of 5.46 A at 100 kHz, supporting high-speed charge–discharge and switching environments.
• Loss and Leakage — Tangent of loss angle (tan δ) of 0.15 measured at 20°C, 120 Hz, and a measured leakage current of 1,820 µA.
• Reliability & Lifetime — Rated life of 5,000 hours at 85°C; endurance characteristics are defined for DC bias plus rated ripple at the rated temperature.
• Thermal Range — Operates across a category temperature range of -25°C to +85°C.
• Mechanical & Mounting — Radial can with screw terminals (φ35 × 110 mm), suitable for secure bolted connections in power assemblies.
• Manufacturing & Compliance — Packaged in cardboard for mass production and RoHS compliant.

Typical Applications

• AC Servomotor Drives — Use in regenerative voltage circuits where fast charge–discharge and high ripple handling are required.
• Inverters and Motor Control — Energy storage and smoothing for general inverter designs and motor-drive power stages.
• Voltage-Doubler Rectifiers — Supports rectifier circuits in stepped or doubled-voltage topologies.
• Equipment in Fluctuating-Voltage Environments — Stabilizes supply and absorbs transient energy in applications subject to line or load variations.

Unique Advantages

• High-Voltage Energy Storage: 450 V rating with 820 µF capacitance provides substantial energy density for high-voltage power rails.
• High Ripple Capability: Combined low- and high-frequency ripple ratings (3.9 A at 120 Hz, 5.46 A at 100 kHz) support both mains-frequency smoothing and high-speed switching currents.
• Long Operating Life: 5,000 hours at 85°C delivers predictable endurance for continuous-duty power applications.
• Robust Mounting: Screw-terminal radial can construction provides secure electrical and mechanical connections for high-current assemblies.
• Production-Friendly Packaging: Cardboard packaging intended for mass production handling reduces unit damage and simplifies inventory flow.
• Regulatory Compliance: RoHS compliant to support regulatory requirements for many industrial and commercial products.

Why Choose LQR2W821MSECBN?

The LQR2W821MSECBN combines high-voltage capacitance, substantial ripple-current capability, and a 5,000-hour endurance at 85°C in a screw-terminal radial can suited for power-electronics assemblies. It is positioned for engineers designing inverter drives, regenerative power systems, and rectifier circuits that need reliable bulk capacitance and secure mounting.

With clear electrical specifications (tan δ, leakage current, ripple ratings), defined temperature range (-25°C to +85°C), and packaging optimized for production, this capacitor offers a practical, verifiable component choice for robust, high-voltage power designs.

Request a quote or contact sales to discuss availability, lead times, and volume pricing for the Nichicon LQR2W821MSECBN.