LQR2G822MSEH

The LQR2G822MSEH is an aluminum electrolytic capacitor in a screw-terminal radial can designed for high-speed charge–discharge environments. With a rated capacitance of 8200 µF and a 400 V rating, it is optimized for applications that require robust energy storage and high ripple handling.

Engineered for demanding power-electronic uses, this screw-terminal type is suited for high-frequency regenerative voltages in AC servomotors and general inverters, operation in areas with fluctuating voltages, and rectifier circuits such as voltage doublers. It is RoHS compliant and built for extended endurance at elevated temperatures.

Key Features

• Capacitance and Tolerance — 8200 µF nominal capacitance with ±20% tolerance (measured at 120 Hz, 20°C).
• Voltage Rating & Polarization — Rated for 400 V DC and polarized for correct polarity installation.
• High Ripple Capability — Ripple current handling of 28.6 A at 120 Hz and 40.04 A at 10 kHz enables effective smoothing and regenerative energy handling in power-conversion circuits.
• Temperature and Lifetime — Operating temperature range −25°C to +85°C and specified endurance of 5000 hours at 85°C under D.C. bias plus rated ripple current.
• Robust Charge–Discharge Endurance — Specified to withstand 20 million charge–discharge cycles (ΔV = rated voltage × 0.3, 3 Hz) while meeting capacitance, tan δ, leakage, and appearance criteria.
• Mechanical / Mounting — Radial can with screw terminals for secure, low-resistance connections and simplified installation in power racks and cabinets. Dimensions: length 17 cm × diameter 7.62 cm.
• Leakage and Stability — Leakage current limit after 5 minutes is defined by datasheet formula (not more than 3√(√V) μA or 5 mA, whichever is smaller), with impedance stability down to −25°C (Z(−25°C)/Z(+20°C) ≤ 8).
• Compliance — Compliant with RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

• AC Servomotor Regenerative Circuits — Handles high-frequency regenerative voltage where rapid charge–discharge performance and high ripple capability are required.
• General Inverters — Provides bulk energy storage and smoothing for inverter DC bus systems operating at elevated ripple and fluctuating input conditions.
• Voltage-Doubler Rectifier Circuits — Suited for rectifier circuits using voltage-doubler topologies that require high-capacitance, high-voltage filtering.
• Equipment in Voltage-Fluctuating Areas — Designed to tolerate fluctuating supply voltages while maintaining capacitance and leakage characteristics over long endurance periods.

Unique Advantages

• High energy storage at high voltage — 8200 µF at 400 V provides substantial DC-bus energy capacity for power-electronic systems.
• Designed for high ripple environments — Specified ripple current at 120 Hz and 10 kHz supports both low- and high-frequency ripple conditions found in regenerative and switching systems.
• Screw-terminal mounting for reliable connections — Screw terminals enable secure mechanical and electrical connections suitable for panel- and rack-mounted power assemblies.
• Proven endurance and cycle life — 5000-hour endurance at 85°C and validated charge–discharge behavior up to 20 million cycles ensure long-term stability in demanding duty cycles.
• Wide operating temperature range — Rated from −25°C to +85°C to support applications exposed to varying ambient conditions.
• RoHS compliance — Meets RoHS directive requirements for environmental compliance in regulated markets.

Why Choose LQR2G822MSEH?

The LQR2G822MSEH combines high capacitance and a 400 V rating with screw-terminal construction to deliver reliable bulk energy storage and high ripple performance for power-electronic systems. Its endurance at 85°C, validated charge–discharge life, and defined leakage and impedance characteristics make it suitable for designers tackling regenerative drives, inverters, and rectifier circuits in variable-voltage environments.

This capacitor is a practical option for engineers and procurement teams seeking a robust, RoHS-compliant component that supports heavy-duty cycle requirements, simplifies bus-capacitance implementation with screw terminals, and provides measurable, datasheet-backed endurance and ripple handling.

If you need pricing, lead-time details, or a custom quote for LQR2G822MSEH, please submit a request or contact sales to initiate a parts inquiry.