LQR2G821MSECBN

The LQR2G821MSECBN is an aluminum electrolytic capacitor in a screw-terminal radial can package from Nichicon's LQR series. It delivers 820 µF at a 400 V rated voltage with a screw-terminal mounting style designed for secure, high-current connections.

This part is aimed at power-electronics applications that require high-speed charge–discharge performance and reliable operation under fluctuating voltages, including AC servomotor regenerative circuits, inverters, and rectifier circuits such as voltage doublers. It is RoHS compliant and offered in mass production.

Key Features

• Capacitance & Rated Voltage — 820 µF nominal capacitance with a 400 V rated voltage and ±20% tolerance (measured at 120 Hz, 20°C).
• Screw Terminal Package — Radial, can-style capacitor with screw terminals for secure bolted connections; physical size φ35 × 100L (L: 10 × D: 3.5 cm).
• High-speed Charge–Discharge — Designed for 85°C high-speed charge–discharge duty and suited for high-frequency regenerative voltage applications such as AC servomotors and inverters.
• Endurance — 5000 hours endurance at 85°C with D.C. bias plus rated ripple current applied; after recovery to 20°C, capacitance remains within ±20% and leakage/tanδ meet specified limits.
• Ripple Current Performance — Rated ripple current of 4.1 A at 120 Hz and 5.74 A at 10 kHz, supporting high-frequency ripple conditions.
• Temperature Range & Low-Temperature Stability — Operating category from −25°C to +85°C; impedance ratio Z(−25°C)/Z(+20°C) up to 8.
• Loss Tangent (tan δ) — Specified tanδ (DF) of 0.15, measured at reference conditions (120 Hz, 20°C as noted in series datasheet).
• Environmental Compliance — RoHS compliant according to the series documentation.

Typical Applications

• AC Servomotor Regeneration — Handles high-frequency regenerative voltage and rapid charge–discharge cycles in motor drive DC bus circuits.
• General Inverters — Provides DC-link energy storage and smoothing in inverter modules where secure screw-terminal connections are required.
• Voltage Doubler / Rectifier Circuits — Suitable for rectifier stages such as voltage doublers that experience fluctuating voltages.
• Power Conversion Equipment — Useful in equipment exposed to voltage fluctuation environments that require durable, high-voltage electrolytic energy storage.

Unique Advantages

• Engineered for high-frequency duty: The combination of 85°C high-speed charge–discharge design and specified ripple currents at 120 Hz and 10 kHz supports demanding regenerative and switching environments.
• Long operational life: 5000 hours endurance at 85°C under rated conditions provides predictable aging and reliable service life for continuous power applications.
• Secure, serviceable connections: Screw terminals enable robust mechanical and electrical connections suitable for high-current DC-link installations.
• Compact radial can footprint: φ35 × 100L form factor (L: 10 × D: 3.5 cm) offers a compact solution for power modules requiring high-voltage capacitance.
• Verified electrical limits: Specified leakage current limits and tanδ measurement criteria allow for engineering trade-offs to be evaluated against measurable parameters.
• Regulatory compliance: RoHS compliance supports use in designs subject to environmental substance restrictions.

Why Choose LQR2G821MSECBN?

The LQR2G821MSECBN is positioned for power-electronics designs that require a high-voltage, high-capacitance electrolytic with robust screw-terminal connections and proven endurance under elevated temperature and ripple conditions. Its specification set—820 µF at 400 V, 5000 h endurance at 85°C, defined ripple current ratings, and a compact φ35 × 100L package—makes it a practical choice for inverter, motor-drive, and rectifier applications facing frequent voltage fluctuations or regenerative events.

Choose this part when you need a predictable, tested aluminum electrolytic solution from the Nichicon LQR series that combines high-voltage capability with secure mechanical terminals and industry-standard endurance and loss characteristics.

If you would like pricing, lead-time, or to request a quote for LQR2G821MSECBN, please submit an inquiry specifying your required quantity and delivery needs. A representative will respond with a tailored quote and availability information.