LQR2W822MSEJBB

The LQR2W822MSEJBB is an aluminum electrolytic capacitor in a screw-terminal, radial can package designed for high-frequency charge–discharge environments. It offers 8.2 mF capacitance at a 450 V rating and is intended for applications such as AC servomotor regenerative circuits, general inverters, and rectifier circuits for voltage doubler configurations.

Engineered for operation from −25 °C to 85 °C, this capacitor combines high capacitance, high voltage handling and screw-terminal mounting for robust connections in equipment exposed to fluctuating voltages. The device is RoHS compliant.

Key Features

• Capacitance & Voltage — 8.2 mF (8200 µF) nominal capacitance with a 450 V rated voltage, suitable for energy storage and smoothing tasks at high DC voltages.
• Capacitance Tolerance — ±20% at 120 Hz, 20 °C, providing predictable behavior for design calculations.
• Operating Temperature — Rated range −25 °C to +85 °C, supporting a wide range of ambient conditions.
• Endurance — 5000 hours at 85 °C with D.C. bias plus rated ripple current; capacitance change remains within ±20% after the endurance test.
• Charge–Discharge Durability — Specified endurance for 20 million charge–discharge cycles (ΔV = rated voltage × 0.3, 3 Hz) with performance limits defined for capacitance, tan δ and leakage current.
• High Ripple Current Capability — Rated ripple current of 26.1 A at 120 Hz and 36.54 A at 10 kHz, supporting applications with significant AC ripple or regenerative pulses.
• 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), enabling predictable leakage behavior in circuits.
• Low-Temperature Impedance Performance — Impedance ratio Z(−25 °C)/Z(+20 °C) = 8, for defined behavior in colder environments.
• Mounting & Package — Screw terminal radial can with robust screw-type terminals for secure electrical and mechanical connections.
• Environmental Compliance — Compliant with the RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

• AC Servomotor Regenerative Circuits — Used to absorb and smooth regenerative voltage spikes and support rapid charge–discharge events in servo drives.
• General Inverters — Provides bulk energy storage and ripple smoothing for inverter DC buses exposed to fluctuating voltages.
• Voltage-Doubler Rectifier Circuits — Suitable for rectifier stages that require large capacitance at high DC voltage.
• Equipment in Fluctuating-Voltage Environments — Designed for systems subject to voltage fluctuations where stable DC bus capacitance and charge–discharge endurance are required.

Unique Advantages

• High Voltage Capability: 450 V rating supports high-voltage DC bus designs without additional series stacking.
• Large Stored Energy: 8.2 mF nominal capacitance provides significant bulk energy and smoothing capacity for power electronics.
• Designed for High-Frequency Stress: Specified ripple currents at 120 Hz and 10 kHz indicate suitability for circuits with both low- and high-frequency ripple components.
• Long Endurance: 5000 hours at 85 °C under rated conditions and defined charge–discharge endurance of 20 million cycles support extended operational life in demanding duty cycles.
• Robust Mechanical Termination: Screw-terminal mounting provides secure electrical connections and straightforward installation in industrial power assemblies.
• Predictable Leakage and Low-Temperature Behavior: Leakage current limits and defined impedance ratio at −25 °C give designers measurable parameters for system stability across temperature extremes.

Why Choose LQR2W822MSEJBB?

The LQR2W822MSEJBB is positioned for power-electronics designs that require high capacitance at elevated voltages, resilient charge–discharge behavior, and reliable screw-terminal connectivity. Its combination of 8.2 mF capacitance, 450 V rating, defined ripple current ratings and endurance specifications make it well suited for inverter and regenerative drive applications where voltage fluctuation and frequent energy cycling occur.

Engineers specifying this capacitor benefit from clearly defined performance limits (capacitance tolerance, leakage current, impedance ratios and endurance) and RoHS compliance, supporting long-term system robustness and environmental regulatory requirements.

Request a quote or submit an inquiry to our sales team to discuss pricing, availability and how LQR2W822MSEJBB can integrate into your power electronics design.