LQR2V682MSEHBN

The LQR2V682MSEHBN from Nichicon is a screw‑terminal aluminum electrolytic capacitor engineered for high‑speed charge‑discharge duty. As part of the LQR series, it is designed for high‑frequency regenerative and inverter applications where robust energy buffering and high ripple handling are required.

Targeted at industrial power electronics, this polarized capacitor provides 6.8 mF capacitance at a 350 V rating, RoHS compliance, and an operating temperature range of −25 °C to 85 °C to support demanding regenerative and voltage‑fluctuating environments.

Key Features

• Capacitance & Voltage — 6.8 mF nominal capacitance rated at 350 V for energy storage in power conversion and regenerative circuits.
• Screw‑Terminal Mounting — Robust radial can with screw terminals for secure electrical and mechanical connection in inverter and motor drive assemblies.
• High‑Speed Charge‑Discharge — Designed for high speed charge/discharge behavior; datasheet endurance validated for 20 million cycles at ΔV = rated voltage × 0.3 (3 Hz) at room temperature.
• High Ripple Current Capability — 22.9 A at 120 Hz (low frequency) and 32.06 A at 100 kHz (high frequency) to support high ripple and regenerative currents typical in servo and inverter systems.
• Endurance at Elevated Temperature — Rated for 5,000 hours at 85 °C under DC bias plus rated ripple current with defined limits on capacitance, tan δ, and leakage current.
• Wide Operating Temperature — −25 °C to 85 °C category temperature range suitable for many industrial environments.
• Leakage Current Specification — After 5 minutes at rated voltage, leakage current is limited to not more than 3√(V) μA or 5 mA (whichever is smaller) at 20 °C.
• RoHS Compliant — Conforms to the RoHS Directive (2011/65/EU, (EU)2015/863).

Typical Applications

• AC Servomotor Regenerative Circuits — Handles high‑frequency regenerative voltages and repeated charge/discharge cycles encountered in servo drives.
• General Inverters and Motor Drives — Provides energy buffering and high ripple current capability for inverter DC link and smoothing stages.
• Voltage‑Doubler Rectifier Circuits — Suited for rectifier stages in designs using voltage doubler topologies where robust DC smoothing is required.
• Equipment in Voltage‑Fluctuating Areas — Designed to tolerate variable input conditions and support stability in systems exposed to fluctuating supply voltages.

Unique Advantages

• Engineered for High‑Frequency Regeneration: Ripple current ratings at 120 Hz and 100 kHz make the part suitable for both mains‑frequency and high‑frequency regenerative duties.
• Proven Endurance: 5,000‑hour endurance at 85 °C and a 20‑million cycle charge/discharge validation provide quantifiable reliability metrics for long‑life power systems.
• Secure Screw‑Terminal Packaging: Screw terminals and radial can format simplify integration into industrial racks and power modules requiring robust connections.
• Clear Leakage and Impedance Limits: Defined leakage current and low‑temperature impedance ratio (Z(−25 °C)/Z(+20 °C) = 8) support predictable performance across operating conditions.
• RoHS Compliance: Meets modern environmental requirements for electronics manufacturing and deployment.

Why Choose LQR2V682MSEHBN?

The LQR2V682MSEHBN is positioned as a durable, engineer‑focused solution for industrial power electronics that require reliable energy storage, high ripple handling, and rigorous charge/discharge endurance. Its combination of 6.8 mF at 350 V, screw‑terminal robustness, and validated endurance characteristics makes it suitable for designers building servo drives, inverters, and rectifier circuits operating in fluctuating voltage environments.

For systems where long operational life, predictable leakage and impedance behavior, and high‑frequency regenerative handling are critical, this Nichicon LQR part offers a specification‑driven component choice backed by clear datasheet parameters.

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