LQR2V682MSEGBN

The LQR2V682MSEGBN from Nichicon is a screw-terminal aluminum electrolytic capacitor rated at 6.8 mF (6800 µF) and 350 V, designed for high-frequency charge–discharge and regenerative voltage applications. Its screw-terminal radial can package and polarized construction make it suitable for industrial power electronics where high capacitance, high voltage and robust electrical connections are required.

Typical use cases include AC servomotor regenerative circuits, general inverters, rectifier circuits such as voltage doublers, and equipment operating in areas with fluctuating supply voltage. The device is RoHS compliant and specified for continuous operation across a -25 °C to +85 °C temperature range.

Key Features

• Capacitance & Voltage — Rated capacitance 6.8 mF (6800 µF) at a nominal voltage of 350 V, suitable for high-energy storage in power conversion circuits.
• Screw Terminal Package — Radial can with screw terminals provides a robust mechanical and electrical connection for high-current installations.
• High Ripple Current Handling — Specified ripple current of 23.5 A at 120 Hz and 32.9 A at 100 kHz to support high-frequency and regenerative loads.
• Temperature & Endurance — Operating temperature range of -25 °C to +85 °C with endurance specified as 5000 hours at 85 °C under DC bias plus rated ripple current.
• Reliability Characteristics — Endurance and charge–discharge behavior defined: capacitance retention within ±20%, tan δ within 300% of initial value, and leakage current not exceeding the initial specification after endurance testing.
• Leakage Current Specification — After 5 minutes at rated voltage, leakage current is limited to 3√(V) µA or 5 mA, whichever is smaller (at 20 °C), providing predictable leakage behavior for design calculations.
• Low-Temperature Stability — Impedance stability specified with Z(-25 °C)/Z(+20 °C) ≤ 8, supporting performance in cooler ambient conditions.
• RoHS Compliant — Meets the RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

• AC Servomotor Regenerative Circuits — Energy absorption and smoothing for regenerative voltage in motor drive systems.
• General Inverters — Bulk energy storage and ripple smoothing in inverter DC-link and power conversion stages.
• Rectifier / Voltage Doubler Circuits — High-voltage capacitance for rectifier smoothing and voltage-doubler implementations.
• Equipment in Fluctuating Voltage Environments — Stabilizing DC bus and handling transient conditions where supply voltage can vary.

Unique Advantages

• High stored energy in a single component: 6.8 mF at 350 V delivers substantial capacitance for DC-link and smoothing applications without multiple-parallel parts.
• Designed for high-frequency stress: Ripple current ratings at both 120 Hz and 100 kHz support regenerative and high-speed switching environments.
• Robust termination: Screw-terminal radial can enables secure electrical and mechanical connections for high-current, industrial installations.
• Proven endurance at elevated temperature: Specified 5000 hours endurance at 85 °C under rated conditions provides predictable long-term performance data for thermal design.
• Predictable leakage behavior: Clear leakage-current limits (3√(V) µA or 5 mA) simplify power-loss and reliability calculations.
• Wide operating temperature range: -25 °C to +85 °C operation covers a broad set of industrial ambient conditions.

Why Choose LQR2V682MSEGBN?

The LQR2V682MSEGBN combines high voltage and high capacitance in a screw-terminal aluminum electrolytic package engineered for high-frequency charge–discharge and regenerative applications. Its ripple-current capability, defined endurance at 85 °C, and specified leakage and impedance characteristics make it well suited for industrial inverter, motor-drive and rectifier designs that require reliable DC energy storage and smoothing.

Engineers specifying for harsh or fluctuating-voltage environments will find the Nichicon LQR series provides verifiable performance parameters to support system-level thermal, ripple and lifetime trade-offs while maintaining compliance with RoHS requirements.

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