LQR2V392MSEGBB

The LQR2V392MSEGBB is an aluminum electrolytic, screw-terminal capacitor from Nichicon's LQR series engineered for high-speed charge–discharge applications. It delivers 3.9 mF capacitance at a 350 V rating with a screw-terminal radial can package designed for robust power connections.

Designed for regenerative and inverter power systems, this capacitor is suited to high-frequency regenerative voltage for AC servomotors, general inverters, equipment operating in voltage-fluctuating environments, and rectifier circuits such as voltage doublers. It is RoHS compliant and specified for continuous operation up to 85°C.

Key Features

• Capacitance & Voltage — 3.9 mF (3900 µF) nominal capacitance at a rated voltage of 350 V, tolerance ±20% (at 120 Hz, 20°C).
• Screw-Terminal Radial Can Package — Screw terminal mounting provides secure electrical connections for high-current power applications; package dimensions L: 11 cm × D: 6.35 cm with mounting provisions per LQR series drawings.
• High-Speed Charge–Discharge Endurance — Specified endurance for charge–discharge behavior up to 20 million cycles (ΔV = rated × 0.3, 3 Hz) at room temperature, with appearance and electrical characteristics maintained within specified limits.
• High Ripple Current Capability — Rated ripple currents of 14.6 A at 120 Hz and 20.44 A at 10 kHz support demanding AC regenerative and inverter environments.
• Thermal & Lifetime Performance — Operating temperature range −25°C to +85°C with endurance specified as 5000 hours at 85°C under rated DC bias plus rated ripple current.
• Reliability Metrics — Leakage current specified after 5 minutes to be no more than 3√V (µA) or 5 mA (whichever is smaller); impedance ratio Z(−25°C)/Z(+20°C) ≤ 8; endurance limits for capacitance change, tan δ and leakage are defined in the LQR series specifications.
• Regulatory Compliance — Compliant with the RoHS Directive (2011/65/EU, (EU)2015/863).

Typical Applications

• AC Servomotor Regenerative Circuits — Handles high-frequency regenerative voltages where repeated charge–discharge cycles occur.
• General Inverters — Provides bulk energy storage and high ripple-current capability for inverter DC-link and regenerative stages.
• Equipment in Voltage-Fluctuating Areas — Robust lifetime and leakage characteristics help maintain performance where supply voltage varies.
• Rectifier/Voltage Doubler Circuits — Suitable for use in rectifier circuits and voltage-doubler topologies requiring high-voltage bulk capacitance.

Unique Advantages

• High Bulk Energy Storage: 3.9 mF at 350 V provides substantial stored energy for DC-link and regenerative uses.
• Designed for High-Frequency Stress: Ripple current ratings at 120 Hz and 10 kHz support high-frequency regenerative and inverter operation.
• Durable Screw-Terminal Connections: Screw terminals enable secure, reliable connections for high-current installations and facilitate mechanical mounting.
• Proven Endurance: 5000 hours at 85°C under rated conditions plus 20 million charge–discharge cycles specification support long-term operation in demanding power systems.
• Clear Electrical Limits: Defined leakage current, impedance, and tan δ limits enable predictable design margins and qualification testing.
• RoHS Compliant: Meets current RoHS requirements for restricted substances.

Why Choose LQR2V392MSEGBB?

The LQR2V392MSEGBB combines high-voltage (350 V) bulk capacitance with screw-terminal packaging and high ripple-current capability to address regenerative, inverter, and rectifier applications where robust charge–discharge performance and reliable power connections are required. Its specified endurance at elevated temperature and defined electrical limits make it suitable for designers who need predictable long-term behavior under continuous DC bias and ripple.

Engineers selecting this part benefit from the measurable specifications of the Nichicon LQR series—capacitance, ripple current, thermal range, and endurance—allowing straightforward integration into high-frequency power systems and voltage-doubler rectifiers where performance and compliance are essential.

If you would like pricing, availability, or technical support for integrating LQR2V392MSEGBB into your design, request a quote or contact sales to discuss your requirements and volume options.