LQR2V392MSEG

The LQR2V392MSEG is an aluminum electrolytic capacitor in a screw-terminal radial can designed for high-speed charge/discharge applications. It provides 3900 µF capacitance at a 350 V rating and is optimized for power electronics applications that require robust handling of regenerative and fluctuating voltages.

Typical use cases include regenerative circuits for AC servomotors, general inverters, equipment operating in voltage-fluctuating environments, and rectifier stages such as voltage doublers. The part is RoHS compliant and intended for general-purpose power designs that demand high ripple handling and reliable performance up to 85°C.

Key Features

• Capacitance & Voltage — 3900 µF nominal capacitance with a 350 V rated voltage and ±20% tolerance, suitable for DC link and energy-buffering applications.
• Screw Terminal Mounting — Radial can with screw terminals for secure, high-current connections in power assemblies.
• High-frequency and Ripple Performance — Rated ripple currents of 14.6 A at 120 Hz and 20.44 A at 10 kHz enable use in high-frequency regenerative and inverter circuits.
• Temperature and Endurance — Operates from −25°C to +85°C with an endurance rating of 5000 hours at 85°C under rated conditions.
• Leakage and Stability — Leakage current specification: after 5 minutes at rated voltage, leakage is not more than 3√(V) µA or 5 mA (whichever is smaller) at 20°C; impedance ratio at low temperature Z(−25°C)/Z(+20°C) ≤ 8.
• Charge–Discharge Durability — Endurance of charge–discharge behavior: specification maintained after 20 million cycles (ΔV = rated × 0.3, 3 Hz) at room temperature.
• Physical Size — Body dimensions: L 11.0 cm × D 6.35 cm; seated height maximum 4.331 inch, enabling integration into power modules with screw-terminal wiring.
• Regulatory — Compliant with the RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

• AC Servomotor Regeneration — Energy buffering and high-speed charge/discharge for regenerative voltage handling in servo drives.
• General Inverters — DC link and smoothing in inverter power stages where high ripple current and voltage stability are required.
• Equipment in Voltage-Fluctuating Areas — Stabilization and transient energy storage for systems exposed to varying supply conditions.
• Rectifier / Voltage Doubler Circuits — Use in rectifier stages and voltage-doubler configurations where robust DC filtering and charge endurance are needed.

Unique Advantages

• Designed for high-frequency regenerative circuits: High ripple-current ratings at 120 Hz and 10 kHz support fast charge/discharge cycles common in motor drives and inverters.
• High-voltage capability: 350 V rating enables use in medium-voltage DC link and power conversion applications.
• Secure screw-terminal connections: Screw-terminal radial can package provides reliable mechanical and electrical connection for high-current wiring.
• Proven endurance at elevated temperature: 5000 hours at 85°C endurance rating gives predictable life performance in hot operating environments.
• Robust charge–discharge durability: Maintains specified characteristics after 20 million charge–discharge cycles (ΔV = 0.3 × rated voltage), supporting applications with frequent energy cycling.
• Regulatory compliance: RoHS compliant for use in designs that require restricted-substance conformance.

Why Choose LQR2V392MSEG?

LQR2V392MSEG is positioned for power-electronics designs that require a high-capacitance, high-voltage electrolytic capacitor with secure screw-terminal mounting and proven endurance under elevated temperature and frequent charge/discharge cycles. Its combination of 3900 µF at 350 V, high ripple-current capability, and a −25°C to +85°C operating range makes it suitable for inverter and regenerative motor-drive applications as well as equipment operating in fluctuating voltage environments.

Spec-driven reliability and RoHS compliance provide a clear specification basis for design and procurement teams seeking components with documented endurance, leakage, and temperature characteristics. This part is appropriate for engineers specifying DC link and energy-storage capacitors in industrial power systems where repeatable performance and mechanical connection integrity are important.

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