LQR2W822MSEJBN

The LQR2W822MSEJBN is an aluminum electrolytic capacitor in a screw-terminal radial can designed for high-voltage DC bus applications. It provides 8.2 mF capacitance at a 450 V rating and is optimized for high-frequency charge–discharge environments.

Designed for use in equipment exposed to fluctuating voltages, the part is suited for high-frequency regenerative circuits such as AC servomotor systems and general inverters, and for rectifier circuits in voltage-doubler topologies. It is RoHS compliant.

Key Features

• Capacitance & Rated Voltage 8.2 mF (8200 µF) nominal capacitance rated at 450 V to provide substantial energy storage for high-voltage DC bus applications.
• Screw Terminal Radial Can Screw-terminal mounting and radial can package provide robust, serviceable connections for high-current bus wiring and industrial assemblies.
• High Ripple Current Capability Handles 26.1 A ripple at 120 Hz and 36.54 A at 10 kHz, enabling use in high-frequency regenerative and inverter circuits.
• Temperature Range & Endurance Rated for operation from -25 °C to +85 °C with an endurance specification of 5000 hours at 85 °C under DC bias plus rated ripple current.
• Polarized with Standard Tolerance Polarized design with capacitance tolerance of ±20% (–20% to +20%) at 120 Hz, 20 °C.
• Controlled Leakage and Stability Leakage current after 5 minutes at rated voltage is limited to not more than 3√(V) µA or 5 mA (whichever is smaller), and low-temperature impedance stability is specified (Z at –25 °C / Z at +20 °C = 8).

Typical Applications

• AC Servomotor Regeneration Energy buffering for high-frequency regenerative voltage in servo drives and motion-control systems.
• General Inverters and Motor Drives DC bus smoothing and energy storage in inverter-driven motor control where voltage can fluctuate.
• Voltage Doubler Rectifiers Use in rectifier circuits of voltage-doubler topologies to support peak voltage handling and charge–discharge cycles.
• Equipment in Fluctuating-Voltage Environments Stabilizes DC supplies and absorbs transient energy in systems exposed to variable input or regenerative events.

Unique Advantages

• High-energy storage at high voltage The 8.2 mF capacitance at 450 V provides substantial stored energy for DC bus stabilization and transient absorption.
• Designed for high-frequency operation Specified ripple current at both 120 Hz and 10 kHz supports applications with rapid charge–discharge and regenerative events.
• Industrial-grade endurance Rated for 5000 hours at 85 °C under DC bias and rated ripple current, supporting long-term reliability in demanding environments.
• Robust connection style Screw-terminal mounting enables secure, low-impedance connections for high-current installations and straightforward servicing.
• Measurable leakage and low-temperature behavior Tight leakage current limits and a specified impedance ratio at –25 °C provide predictable performance across temperature extremes.
• RoHS compliant Conforms to RoHS directives, supporting regulatory and environmental requirements.

Why Choose LQR2W822MSEJBN?

The LQR2W822MSEJBN combines high capacitance and a 450 V rating with screw-terminal packaging and defined high-frequency ripple performance, making it a practical choice for inverter and motor-control systems that require reliable DC bus energy storage and transient handling. Its endurance rating at elevated temperature and controlled leakage behavior provide predictable long-term performance in industrial environments.

Manufactured by Nichicon as part of the LQR series, this capacitor is suitable for engineers specifying components for regenerative drives, voltage-doubler rectifiers, and other applications where high-voltage energy storage, secure terminal connections, and operational stability across –25 °C to +85 °C are required.

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