LQR2V682MSEG

The LQR2V682MSEG is a screw-terminal aluminum electrolytic capacitor specified at 6,800 µF and 350 V, designed for high-speed charge–discharge and high-frequency regenerative voltage environments. It is intended for use in industrial power electronics such as AC servomotor drives, general inverters, and equipment operating in areas with fluctuating supply voltage.

Key attributes include high capacitance and rated voltage, robust ripple-current capability across low and high frequencies, and a rated operating range to 85°C with 5,000 hours endurance at that temperature. The device is RoHS compliant.

Key Features

• High capacitance and voltage — 6.8 mF (6,800 µF) nominal capacitance at a 350 V rated voltage for bulk energy storage in high-voltage power circuits.
• High ripple-current capability — 23.5 A at 120 Hz and 32.9 A at 10 kHz to support high-frequency regenerative and inverter applications.
• Temperature and endurance — Operating temperature range −25°C to +85°C with an endurance rating of 5,000 hours at 85°C under DC bias plus rated ripple current.
• Charge–discharge durability — Rated for 20 million charge–discharge cycles (ΔV = rated × 0.3, 3 Hz) with performance limits defined for capacitance, tan δ and leakage current.
• Low leakage specification — After 5 minutes at rated voltage the leakage current is specified as not more than 3√V (µA) or 5 mA, whichever is smaller (measured at 20°C).
• Impedance stability at low temperature — Impedance ratio Z(−25°C)/Z(+20°C) up to 8 to maintain performance in colder environments within the specified range.
• Screw-terminal radial can package — Radial can with screw terminals for robust mounting and high-current connections; nominal case dimensions L: 17 × D: 6.35 cm and a seated height maximum of 6.693 inches.
• RoHS compliant — Conforms to the RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

• Motor drives and inverters — Energy storage and smoothing for AC servomotor drives and general inverter systems that require high-frequency regenerative handling.
• Regenerative braking circuits — Supports rapid charge–discharge cycles and high ripple currents encountered in regenerative energy recovery systems.
• Rectifier and doubler circuits — Suitable for rectifier circuits including voltage doubler topologies where high rated voltage and capacitance are required.
• Industrial power equipment — Designed for equipment used in fluctuating-voltage environments where robust endurance and temperature tolerance are required.

Unique Advantages

• High energy density at 350 V — Large 6,800 µF capacitance at a 350 V rating reduces the number of parallel parts required for bulk storage.
• Designed for high-frequency operation — Specified ripple current at both 120 Hz and 10 kHz enables reliable performance in high-frequency regenerative and inverter circuits.
• Proven endurance and charge–discharge performance — 5,000 hours at 85°C endurance and 20 million charge–discharge cycles provide predictable lifetime behavior in demanding applications.
• Robust package and mounting — Screw-terminal radial can simplifies secure, low-resistance power connections for high-current installations.
• Measurable leakage and low-temperature characteristics — Clear leakage-current limits and defined impedance ratio at −25°C permit informed thermal and electrical design margins.

Why Choose LQR2V682MSEG?

LQR2V682MSEG targets power-electronics designs that demand high-capacitance, high-voltage bulk storage with the ability to handle substantial ripple current and frequent charge–discharge events. Its endurance ratings, defined leakage limits, and temperature performance give designers quantifiable parameters for reliability planning in industrial inverter and regenerative systems.

This part is suited for engineers and procurement teams building or maintaining AC servomotor drives, inverters, rectifier assemblies and other industrial power systems where robust, serviceable screw-terminal mounting and RoHS compliance are required.

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