LQR2V682MSEGBB

The LQR2V682MSEGBB is a Nichicon LQR series aluminum electrolytic capacitor in a screw-terminal radial can package. It provides 6800 µF capacitance at a 350 V rated voltage and is designed for high-speed charge–discharge operation up to an ambient of 85°C.

This part is targeted at power-electronics applications that require high-frequency regenerative handling and robust ripple performance, such as AC servomotor drives, general inverters, voltage-doubler rectifier circuits and equipment operating in fluctuating-voltage environments. It is RoHS compliant.

Key Features

• Capacitance and Voltage — 6800 µF (6.8 mF) rated at 350 V with ±20% tolerance (at 120 Hz, 20°C), providing bulk energy storage for power systems.
• High-speed charge–discharge — Engineered for high-speed charge–discharge behavior and suitability with high-frequency regenerative voltages used in motor drives and inverters.
• High ripple capability — Rated ripple current: 23.5 A at 120 Hz and 32.9 A at 10 kHz, supporting significant AC ripple currents across a wide frequency range.
• Endurance and lifecycle — Endurance specification: 5000 hours at 85°C under D.C. bias plus rated ripple current, with capacitance within ±20% and leakage current maintained to spec after endurance testing.
• Charge–discharge durability — Specified to withstand charge–discharge cycling (20 million cycles, ΔV = rated voltage × 0.3, 3 Hz) while meeting electrical and appearance requirements.
• Operating temperature — Rated for −25°C to +85°C operation, suitable for a broad range of industrial thermal environments.
• Mounting and package — Screw terminal radial can package for secure electrical connection and straightforward mechanical mounting; package dimension L: 17 × D: 6.35 cm (check mechanical drawing for exact footprint).
• Leakage current specification — After 5 minutes at rated voltage, leakage is specified as not more than 3√(V) μA or 5 mA, whichever is smaller (at 20°C).
• RoHS compliant — Meets the RoHS Directive (2011/65/EU, (EU)2015/863).

Typical Applications

• AC servomotor drives — Handles high-frequency regenerative voltages and fast charge–discharge cycles typical in servo power stages.
• General inverters — Bulk energy storage and high ripple-current capability support inverter DC bus stability under fluctuating load and regeneration.
• Voltage-doubler rectifier circuits — Suitable for rectifier stages where capacitive energy storage must accommodate large voltage swings.
• Equipment in fluctuating-voltage environments — Designed for systems exposed to voltage instability, providing reliable filtering and buffering performance.

Unique Advantages

• High bulk capacitance at 350 V: 6800 µF provides substantial DC-bus energy storage for power conversion and regenerative applications.
• Engineered for high-frequency ripple: Specified ripple currents at 120 Hz and 10 kHz reduce thermal stress and support reliable operation under AC ripple loading.
• Proven endurance under thermal stress: 5000-hour endurance at 85°C with defined limits for capacitance change, tan δ and leakage current ensures predictable long-term behavior.
• Charge–discharge robustness: Qualified for 20 million charge–discharge cycles (ΔV = 0.3× rated voltage) to support frequent regenerative events without premature degradation.
• Secure screw-terminal mounting: Screw terminals deliver reliable, low-resistance connections for high-current power systems and simplify installation and maintenance.
• Regulatory conformity: RoHS compliance supports use in designs requiring restricted-substance compliance.

Why Choose LQR2V682MSEGBB?

The LQR2V682MSEGBB combines high capacitance, a 350 V rating and design optimizations for high-speed charge–discharge and high-frequency ripple handling, making it a practical choice for industrial power-electronics designs. Its endurance and charge–discharge qualifications give designers measurable, tested performance for demanding inverter, servo and rectifier applications.

This capacitor suits engineers and procurement teams building systems that require robust DC-bus storage, high ripple tolerance and long-term operational stability in fluctuating-voltage conditions. The Nichicon LQR series specifications provide a clear foundation for predictable integration into power subsystems.

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