LQR2V682MSEJBN

The LQR2V682MSEJBN is an aluminum electrolytic capacitor in a screw-terminal can designed for high-speed charge–discharge applications. It provides 6.8 mF capacitance at a 350 V rating in a φ90 × 100L package and is produced by Nichicon as part of the LQR series.

Engineered for industrial power-electronics use, the LQR series is suited for high-frequency regenerative voltage duties such as AC servomotors and general inverters, equipment operating in voltage-fluctuating environments, and rectifier/voltage-doubler circuits. Key performance attributes include high ripple-current capability, 85°C endurance, and RoHS compliance.

Key Features

• Capacitance & Voltage: 6.8 mF (6800 µF) rated at 350 V for bulk energy storage and DC link applications.
• Screw Terminal Package: Radial can with screw terminals (φ90 size) for secure, low-inductance connections suitable for heavy-current bus wiring.
• High ripple-current capability: Rated ripple current of 22.5 A at 120 Hz and 31.5 A at 10 kHz to support high-frequency charge/discharge cycles.
• Thermal and endurance specification: Operating temperature range −25°C to +85°C with a rated life of 5000 hours at 85°C under DC bias plus rated ripple current.
• Electrical characteristics: Capacitance tolerance ±20%, tangent of loss angle (tan δ) 0.15, and specified leakage current (example value 4.62 mA).
• Compliance & packaging: RoHS compliant; packaged in cardboard packing and available in mass-production quantities from Nichicon.

Typical Applications

• AC servo drives and motor control: Handles high-frequency regenerative voltage and frequent charge–discharge cycles in servo and drive DC link circuits.
• General inverters: Provides DC-link smoothing and energy buffering for industrial inverter systems operating with fluctuating line voltages.
• Rectifier/Voltage-doubler circuits: Used in rectifier and voltage-doubler applications where robust bulk capacitance and ripple endurance are required.
• Industrial power electronics: Suited for equipment in voltage-fluctuating environments that require sustained operation at elevated temperature (up to 85°C) and long endurance.

Unique Advantages

• High ripple-handling capability: Explicit ripple ratings at 120 Hz and 10 kHz allow designers to size the capacitor for both low- and high-frequency ripple conditions.
• Designed for fast charge–discharge: The LQR series specifies high-speed charge–discharge suitability, making this part appropriate for regenerative and pulse-prone applications.
• Long endurance at elevated temperature: Specified 5000-hour life at 85°C under DC bias plus rated ripple current supports long-term operation in demanding installations.
• Screw-terminal connectivity: M5 nominal terminal provision (φ90 series) and screw terminals provide a robust mechanical and electrical connection for heavy-current wiring.
• Clear electrical limits and loss characteristics: Provided tan δ and leakage current specifications help predict dissipation and self-discharge behavior in system design.
• RoHS compliant and production-ready: Series compliance to RoHS and mass-production status simplify procurement and regulatory alignment.

Why Choose LQR2V682MSEJBN?

The LQR2V682MSEJBN combines large capacitance (6.8 mF) and a 350 V rating with screw-terminal robustness and explicit ripple/current endurance ratings, making it a focused choice for industrial DC-link and regenerative applications. Its 5000-hour life at 85°C and specified loss/leakage limits allow engineers to design for sustained performance under elevated-temperature, high-ripple conditions.

Manufactured by Nichicon as part of the LQR series and supplied in cardboard packing for production use, this capacitor is intended for designers and procurement teams specifying components for inverters, servo drives, rectifier circuits, and other power-electronics systems where reliable bulk energy storage and high-frequency behavior are required.

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