LQR2G682MSEH

The LQR2G682MSEH is an aluminum electrolytic capacitor in a screw-terminal radial can package, rated 6.8 mF (6800 µF) at 400 V with polarized construction. It is designed for power-electronics applications that require high capacitance and reliable high-voltage handling.

Engineered for high-speed charge–discharge environments and fluctuating supply conditions, this part is suited to high-frequency regenerative voltage circuits such as AC servomotors, general inverters and rectifier/voltage-doubler circuits. Key attributes include high ripple-current capability, low ESR at 120 Hz, and long endurance at elevated temperature.

Key Features

• Capacitance & Voltage — 6.8 mF (6800 µF) nominal capacitance rated at 400 V with ±20% tolerance (measured at 120 Hz, 20°C).
• Package & Mounting — Radial can with screw terminals for robust, high-current connections in power assemblies.
• Ripple Current & ESR — Low-frequency ripple current 25.4 A at 120 Hz and high-frequency ripple current 35.56 A at 10 kHz, with an ESR of 150 mΩ at 120 Hz to support demanding ripple loads.
• Temperature & Endurance — Rated for operation from −25°C to +85°C and endurance of 5000 hours at 85°C under rated conditions.
• High-speed Charge–Discharge — Designed for high-speed charge–discharge applications, including regenerative circuits in motor drives and inverters.
• RoHS Compliance — Compliant with the RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

• AC servomotor drives — Used in regenerative voltage circuits where fast charge–discharge and high capacitance stabilize bus voltage and absorb energy during braking.
• General inverters — Provides bulk energy storage and smoothing for inverter DC bus applications in variable-frequency drives and power conversion equipment.
• Rectifier and voltage-doubler circuits — Suited for rectifier stages and voltage-doubler configurations that require high-voltage, high-capacitance components.
• Industrial equipment in fluctuating-voltage areas — Helps stabilize systems exposed to voltage variation by providing robust capacitance and ripple handling.

Unique Advantages

• High-voltage bulk storage: 400 V rating combined with 6800 µF capacitance delivers substantial energy storage for DC bus and regenerative applications.
• Strong ripple-handling capability: Specified ripple currents at both 120 Hz and 10 kHz plus a 150 mΩ ESR support heavy ripple loads across a range of frequencies.
• Designed for fast charge–discharge: Series-level design emphasis on high-speed charge–discharge makes it appropriate for regenerative and dynamic power applications.
• Robust mounting: Screw-terminal radial can package enables secure, low-impedance connections suitable for high-current power assemblies.
• Long endurance at raised temperature: 5000 hours endurance at 85°C provides predictable life performance in thermally demanding installations.
• Regulatory compliance: RoHS compliance supports use in regions requiring restricted substance conformity.

Why Choose LQR2G682MSEH?

The LQR2G682MSEH combines high capacitance, a 400 V rating, and robust screw-terminal construction to address the requirements of industrial power systems that demand reliable DC bus energy storage and high ripple tolerance. Its specified ripple-current capability and low ESR at 120 Hz make it well suited to inverter and regenerative drive topologies.

This capacitor is ideal for engineers specifying components for motor drives, inverters and rectifier circuits where predictable endurance (5000 h at 85°C) and high-frequency charge–discharge behavior are required. RoHS compliance and series-level endurance and charge–discharge qualifications support long-term deployment in regulated industrial environments.

Request a quote or submit an inquiry to our sales team for pricing, lead time and availability for the LQR2G682MSEH. Our team can provide technical details and support for integrating this capacitor into your power-electronics design.