LQR2W222MSEGBB

The LQR2W222MSEGBB is a screw-terminal aluminum electrolytic capacitor from Nichicon's LQR series, rated at 2200 µF and 450 V. It is engineered for high-speed charge–discharge and high-frequency regenerative voltages, making it suitable for power electronics that require robust DC bus energy storage and frequent charge cycling.

Typical use cases include AC servomotor regenerative circuits, general inverters, equipment operating in voltage-fluctuating environments, and rectifier circuits such as voltage doublers. The product is polarized, RoHS compliant, and optimized for reliability under elevated temperature and ripple conditions.

Key Features

• High Capacitance and Voltage — 2200 µF at 450 V provides substantial energy storage for DC bus smoothing and regenerative energy capture.
• Screw Terminal Mounting — Radial can with screw terminals enables secure, low-inductance connections for high-current applications and easy installation in power assemblies.
• High-Speed Charge–Discharge — Designed for 85°C high-speed charge–discharge cycles and proven in endurance testing up to 20 million charge–discharge cycles (ΔV = 0.3 × rated voltage, 3 Hz) as detailed in the series datasheet.
• Robust Ripple Handling — Specified ripple current: 8.6 A at 120 Hz (low frequency) and 12.04 A at 10 kHz (high frequency), supporting both mains-frequency smoothing and high-frequency inverter environments.
• Operating Temperature and Lifetime — Rated for −25°C to +85°C with a specified endurance of 5000 hours at 85°C under DC bias plus rated ripple current.
• Leakage Current Specification — After 5 minutes at rated voltage, leakage current is limited to not more than 3√V (µA) or 5 mA, whichever is smaller (measured at 20°C), per the datasheet.
• Capacitance Tolerance and Polarization — Nominal capacitance 2.2 mF with ±20% tolerance at 120 Hz, 20°C; polarized design for correct DC application.
• RoHS Compliance — Meets RoHS Directive (2011/65/EU and (EU)2015/863) requirements.

Typical Applications

• AC servomotor regenerative circuits — Handles high-frequency regenerative voltages and frequent charge–discharge cycles in motion control systems.
• General inverters and motor drives — Provides DC bus smoothing and energy buffering for inverter power stages and drive electronics.
• Equipment operating in voltage-fluctuating areas — Stabilizes DC rails and absorbs transient energy where supply voltage varies.
• Rectifier and voltage-doubler circuits — Suited for rectifier circuits including voltage doublers that require high-voltage capacitance.

Unique Advantages

• High-voltage energy storage: 450 V rating with 2200 µF capacitance supplies significant energy density for DC link and regenerative applications.
• Screw-terminal reliability: Robust mechanical and electrical connection suitable for high-ripple, high-current environments common in power electronics.
• Engineered for charge–discharge endurance: Endurance validated by series-level testing including 20 million charge–discharge cycles and 5000 hours at 85°C, supporting long-life operation under demanding conditions.
• Broad ripple-frequency capability: Specified ripple current at both 120 Hz and 10 kHz enables use in low- and high-frequency power systems.
• Clear, measurable leakage and tolerance specs: Leakage current limit and ±20% capacitance tolerance provide predictable performance for design verification.
• Regulatory compatibility: RoHS compliance ensures alignment with environmental requirements for modern equipment.

Why Choose LQR2W222MSEGBB?

The LQR2W222MSEGBB is positioned for engineers and designers who need a high-voltage, high-capacitance electrolytic capacitor with screw-terminal mounting for reliable DC bus energy storage and frequent charge–discharge duty. Its combination of 450 V rating, 2200 µF capacitance, specified ripple currents at multiple frequencies, and endurance characteristics makes it appropriate for power conversion, motor drive, and regenerative energy applications where predictable long-term behavior is required.

Choosing this part supports designs that demand robust ripple handling, mechanical reliability from screw terminals, and RoHS compliance. It is suited to teams focused on durability and clear, testable performance metrics documented in the LQR series datasheet.

Request a quote or submit a sales inquiry to evaluate LQR2W222MSEGBB for your power electronics design and obtain pricing and availability information.