LQR2G682MSEHBN

The LQR2G682MSEHBN is an aluminum electrolytic capacitor in a screw-terminal radial can designed for high-speed charge–discharge applications. It provides 6.8 mF (6800 µF) capacitance at a 400 V rating and is specified for operation from -25 °C to +85 °C.

Engineered for power-electronics use, this part is suited for high-frequency regenerative voltages in AC servomotors, general inverters, equipment operating in voltage-fluctuating environments, and rectifier circuits such as voltage doublers. The device is RoHS compliant and built to deliver robust ripple handling and endurance under thermal and electrical stress.

Key Features

• Capacitance & Voltage: 6.8 mF (6800 µF) nominal capacitance at a 400 V rated voltage, with a tolerance of -20% to +20% (±20%).
• High-Speed Charge–Discharge: Designed for high-speed charge–discharge performance specified by the LQR series for regenerative and inverter applications.
• Ripple Current Performance: Handles 25.4 A ripple at 120 Hz and 35.56 A ripple at 10 kHz, supporting both low- and high-frequency ripple environments.
• Temperature & Endurance: Rated operating range -25 °C to +85 °C with endurance specified as 5000 hours at 85 °C under DC bias plus rated ripple current.
• Charge–Discharge Endurance: Verified for charge–discharge endurance of 20 million cycles (ΔV = rated voltage × 0.3, 3 Hz) at room temperature with performance limits on capacitance, tan δ, and leakage current.
• Leakage Current Specification: After 5 minutes at rated voltage, leakage current is not more than 3√(V) µA or 5 mA, whichever is smaller (measured at 20 °C).
• Low-Temperature Impedance Stability: Impedance ratio Z(-25 °C)/Z(+20 °C) ≤ 8, supporting performance in colder conditions within the specified range.
• Package & Mounting: Radial can with screw terminals for secure electrical and mechanical connections; compact footprint with dimensions L: 15 cm × D: 7.62 cm and a seated height specification.
• Regulatory Compliance: RoHS compliant in accordance with the RoHS Directive (2011/65/EU, (EU)2015/863).

Typical Applications

• AC Servomotor Regenerative Circuits: Absorbs and smooths high-frequency regenerative voltage during rapid braking and direction changes.
• General Inverters: Provides bulk energy storage and ripple filtering for inverter DC-link and regenerative loops.
• Voltage-Fluctuating Equipment: Stabilizes supply in systems subject to frequent voltage swings, improving transient response and system stability.
• Rectifier / Voltage Doubler Circuits: Used in rectifier stages and voltage-doubler topologies where high DC voltage and energy buffering are required.

Unique Advantages

• High energy storage at elevated voltage: 6800 µF at 400 V delivers substantial bulk capacitance for DC-link and energy-buffering roles.
• Designed for fast charge–discharge cycles: Specified charge–discharge endurance and high-speed capability reduce risk of performance degradation in regenerative applications.
• Robust ripple-handling capability: High ripple current ratings at both 120 Hz and 10 kHz enable reliable operation across common switching and regenerative frequencies.
• Thermal and operational endurance: 5000 hours endurance at 85 °C under rated conditions supports long-term reliability in elevated temperature environments.
• Controlled leakage and low-temperature impedance: Leakage limits and impedance ratio specifications help maintain predictable performance across temperature extremes and after voltage application.
• Screw-terminal packaging: Radial can with screw terminals provides secure, serviceable connections for power-electronics assemblies.

Why Choose LQR2G682MSEHBN?

The LQR2G682MSEHBN combines high-capacitance energy storage and a 400 V rating with engineering targeted at high-speed charge–discharge and ripple-heavy environments. Its endurance specifications and temperature range make it suitable for power-electronics designs that require stable DC-link performance under repeated charge/discharge cycles and fluctuating input conditions.

This capacitor is well suited to engineers designing inverters, servo drives, and industrial power equipment where predictable ripple handling, thermal endurance, and secure screw-terminal connections are priorities. Its RoHS compliance and documented leakage and impedance characteristics support straightforward integration into regulated designs.

If you would like pricing, lead-time information, or a formal quote for the LQR2G682MSEHBN, submit an inquiry or request a quote through our product inquiry channel to get details tailored to your project requirements.