LQR2G332MSEFBB

The LQR2G332MSEFBB is a Nichicon LQR series aluminum electrolytic capacitor in a screw-terminal radial can. It provides 3300 µF capacitance at a 400 V rating and is designed for high-speed charge–discharge environments.

Engineered for power-electronics use, it is suited to high-frequency regenerative voltage circuits for AC servomotors and general inverters, equipment operating in areas with fluctuating voltage, and rectifier circuits such as voltage doublers. The product is RoHS compliant.

Key Features

• Capacitance & Voltage: 3.3 mF (3300 µF) nominal capacitance with a 400 V rated voltage and ±20% tolerance at 120 Hz, 20°C.
• Screw-Terminal Package: Radial can with screw terminals for secure, high-current connections and robust mounting.
• High-speed Charge–Discharge Capability: Designed for rapid charge–discharge behavior and regenerative voltage applications.
• Endurance at Elevated Temperature: Rated endurance of 5000 hours at 85°C with D.C. bias plus rated ripple current applied (capacitance change within ±20% after test).
• Ripple Current Handling: Specified ripple current of 13.7 A at 120 Hz and 19.18 A at 10 kHz, supporting high-frequency power circuits.
• Operating Temperature Range: -25°C to +85°C with specified low-temperature impedance stability (Z(-25°C)/Z(+20°C) = 8 for rated voltages in the series).
• Charge–Discharge Endurance: Endurance under repetitive charge–discharge demonstrated to the series specification (20 million cycles at ΔV = rated voltage × 0.3, 3 Hz, room temperature).
• Leakage Current Specification: Leakage current after 5 minutes is limited by the series specification: not more than 3√(V) µA or 5 mA, whichever is smaller (at 20°C).
• Environmental Compliance: Compliant with RoHS directives (2011/65/EU, (EU)2015/863).
• Physical Size: Body dimension approximately L: 15 × D: 5.1 cm for compact power assemblies.

Typical Applications

• Industrial Drives: Used in regenerative circuits for AC servomotors where high-speed charge–discharge and high voltage endurance are required.
• Inverters and Power Converters: Suited for general inverter DC-link and smoothing duties, including equipment exposed to fluctuating input voltage.
• Rectifier / Voltage Doubler Circuits: Appropriate for rectifier circuits such as voltage doublers that require high-voltage capacitance and robust ripple handling.

Unique Advantages

• High-voltage capability: 400 V rating supports demanding power-electronics topologies and DC-link applications.
• Designed for high-frequency operation: Specified ripple current at both 120 Hz and 10 kHz enables use in high-frequency regenerative and switching environments.
• Proven endurance at elevated temperature: 5000-hour endurance at 85°C under rated stress gives predictable long-term performance in hot operating conditions.
• Robust mechanical connections: Screw-terminal radial can simplifies heavy-current connections and secure mounting in industrial assemblies.
• Series-qualified charge–discharge durability: The LQR series endurance to repetitive charge–discharge cycles supports applications subject to frequent energy transfer cycles.
• Regulatory compliance: RoHS compliance helps meet environmental and procurement requirements.

Why Choose LQR2G332MSEFBB?

LQR2G332MSEFBB combines high capacitance and a 400 V rating in a screw-terminal aluminum electrolytic package built for high-speed charge–discharge and ripple-heavy power circuits. Its specified ripple current performance, elevated-temperature endurance, and series-proven charge–discharge durability make it appropriate for industrial power electronics where reliable energy buffering and regenerative handling are needed.

This capacitor is a practical choice for engineers specifying DC-link and rectifier-stage components in inverters, motor drives, and equipment operating in voltage-fluctuating environments, offering verifiable specifications for design and procurement.

Request a quote or contact sales to discuss availability, lead times, and integration details for LQR2G332MSEFBB.