LQR2V392MSEHBB

The LQR2V392MSEHBB from Nichicon is a screw-terminal aluminum electrolytic capacitor designed for high-voltage power systems. It provides 3.9 mF of polarized capacitance at a 350 V rating and is intended for demanding power applications where high-frequency regenerative voltage handling and robust bulk energy storage are required.

Built for general purpose power electronics, this capacitor addresses needs in inverter and motor-drive environments with a package optimized for secure screw-terminal mounting and serviceability.

Key Features

• High-capacitance, high-voltage: 3.9 mF capacitance at a 350 V rated voltage, suitable for bulk energy storage in high-voltage power circuits.
• Ripple current capability: Rated ripple current of 14.1 A at 120 Hz and 19.74 A at 10 kHz to support high-frequency charge–discharge conditions.
• Temperature and endurance: Operates across −25 °C to +85 °C with an endurance rating of 5000 hours at 85 °C for sustained elevated-temperature operation.
• Polarized construction: Polarized aluminum electrolytic design optimized for DC bulk applications and rectifier circuits.
• Screw-terminal mounting: Radial can with screw terminals for strong mechanical connection and easy installation or replacement in power assemblies.
• RoHS compliant: Meets RoHS directive requirements (2011/65/EU, (EU)2015/863) for environmental compliance.
• Package dimensions: Physical size: length 8.0 cm × diameter 7.62 cm, suitable for compact high-voltage modules that accept screw-terminal radial cans.

Typical Applications

• AC servomotor drives: Handles high-frequency regenerative voltage and bulk energy buffering in servo motor power stages.
• General inverters: Provides DC link and energy storage for inverters operating in environments with fluctuating line voltages.
• Voltage-doubler rectifiers: Suited for rectifier circuits, including voltage doubler topologies, where high-voltage capacitance is required.
• Industrial power equipment: For equipment operating in voltage-fluctuating areas that require robust ripple current performance and elevated-temperature endurance.

Unique Advantages

• High-energy storage at high voltage: 3.9 mF at 350 V provides substantial DC bulk capacitance for intermediate bus and energy buffering functions.
• Designed for high ripple environments: Specified ripple current at both low and high frequency supports applications with rapid charge–discharge cycles.
• Durable under elevated temperature: 5000-hour endurance rating at 85 °C helps ensure long-term stability in thermal stress conditions.
• Serviceable screw-terminal package: Screw terminals simplify secure connections and field replacement compared with soldered alternatives.
• Regulatory compliance: RoHS conformity reduces integration risk in products targeting regulated markets.

Why Choose LQR2V392MSEHBB?

The LQR2V392MSEHBB combines high capacitance and a 350 V rating with validated ripple-current capability and a proven endurance at elevated temperature, making it a practical choice for designers of inverters, motor drives, and industrial power systems. Its screw-terminal radial can package supports reliable mechanical connections and straightforward serviceability in power assemblies.

This capacitor is suited to engineers and procurement teams building high-voltage DC link and regenerative power circuits who require verifiable specifications for capacitance, ripple handling, temperature range, and lifetime backed by Nichicon's LQR series design approach.

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