LQR2W332MSEHBN

The LQR2W332MSEHBN is an aluminum electrolytic capacitor in a screw-terminal can package designed for high-voltage power electronics. It provides 3300 µF of capacitance at a 450 V rating with polarized construction and is intended for demanding power applications such as regenerative voltage circuits and inverters.

Engineered for high-frequency charge–discharge use, this capacitor delivers high ripple-current capability and long-term endurance at elevated temperatures, making it suitable for AC servomotor regenerative systems, general inverters, and rectifier circuits used in voltage-doubler configurations.

Key Features

• High Capacitance / High Voltage — 3300 µF nominal capacitance at a 450 V rated voltage for bulk energy storage in high-voltage power circuits.
• Screw-Terminal, Radial Can Package — Robust screw terminal mounting for secure electrical connections in industrial power assemblies.
• High Ripple Current Capability — 11.8 A at 120 Hz and 16.52 A at 10 kHz to support high-frequency regenerative and inverter ripple currents.
• Operating Temperature Range — Rated for operation from −25 °C to +85 °C to suit typical industrial environments.
• Endurance and Charge–Discharge Durability — 5000 hours at 85 °C under DC bias plus rated ripple current; specified endurance for repeated charge–discharge cycles (20 million cycles at ΔV = 0.3 × rated V, 3 Hz) as detailed in the series datasheet.
• Polarized with Standard Tolerance — Polarized construction with capacitance tolerance of ±20% (at 120 Hz, 20 °C) for predictable performance in DC link and energy-storage roles.
• RoHS Compliant — Manufactured in compliance with the RoHS directive (2011/65/EU and (EU)2015/863).
• Dimensional Profile — Package dimensions: length 10.0 cm × diameter 7.62 cm, facilitating mechanical planning for power racks and enclosures.

Typical Applications

• AC Servomotor Regeneration — Energy absorption and smoothing in regenerative voltage circuits where high-voltage, high-capacitance components are required.
• General Inverters — Bulk DC-link and smoothing capacitor for inverter front ends, leveraging high ripple-current handling and 450 V rating.
• Voltage-Doubler Rectifier Circuits — Use in rectifier and voltage-doubler topologies that require large capacitance at elevated DC voltages.
• Equipment in Fluctuating-Voltage Areas — Suitable for systems exposed to voltage swings thanks to the series’ tolerance for high-frequency charge–discharge conditions and defined endurance.

Unique Advantages

• High energy storage at high voltage: 3300 µF at 450 V provides significant stored energy for DC-link and regenerative circuits without parallel arrays.
• Designed for high-frequency abuse: Specified ripple current up to 16.52 A at 10 kHz supports fast charge–discharge cycles found in modern power electronics.
• Long-term thermal endurance: 5000 hours at 85 °C under rated conditions offers predictable lifetime performance in elevated-temperature installations.
• Durable mechanical termination: Screw-terminal construction enables secure, low-resistance connections suitable for industrial assemblies and field serviceability.
• Charge–discharge durability: Endurance tested to repeated charge–discharge cycles, supporting applications with frequent energy transfer events.
• Regulatory compliance: RoHS compliance simplifies selection for global equipment designs constrained by hazardous-substance rules.

Why Choose LQR2W332MSEHBN?

The LQR2W332MSEHBN positions itself as a practical high-voltage energy-storage solution for power-electronics designers needing 450 V capability with substantial capacitance and strong ripple-current tolerance. Its screw-terminal can package and defined endurance characteristics make it well suited to inverter front ends, regenerative drives, and rectifier circuits that require reliable high-frequency performance.

For engineers specifying components into industrial and power-conversion designs, this Nichicon part offers measurable long-term value through predictable lifetime data, charge–discharge endurance, and compliance with RoHS requirements.

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