LQR2V821MSEC

The LQR2V821MSEC is an aluminum electrolytic capacitor in a screw‑terminal can designed for high‑speed charge–discharge applications. It offers 820 µF capacitance at a 350 V rated voltage and is part of Nichicon's LQR series.

Engineered for power‑electronics environments, it is suited for high‑frequency regenerative voltages in AC servomotors, general inverters, equipment operating in voltage‑fluctuating areas, and rectifier circuits such as voltage doublers. The device is RoHS compliant and optimized for reliability under elevated temperature operation.

Key Features

• Capacitance & Voltage — 820 µF nominal capacitance with a 350 V rated voltage, ±20% tolerance at 120 Hz, 20 °C.
• Screw‑Terminal Can Package — Radial can with screw terminals for secure electrical and mechanical connections in power modules.
• High‑Speed Charge–Discharge — Designed specifically for rapid charge/discharge cycles and high‑frequency regenerative voltage handling.
• Ripple Current Performance — Rated ripple current of 3.3 A at 120 Hz and 4.62 A at 10 kHz to support AC and switching environments.
• Operating Temperature & Endurance — Rated for −25 °C to +85 °C with an endurance specification of 5000 hours at 85 °C under rated conditions.
• Polarized Design — Polar aluminum electrolytic construction for DC bulk energy storage in power circuits.
• Physical Size & Mounting — Can dimensions approximately L: 8 × D: 3.5 cm with screw‑terminal mounting and radial package format.
• Regulatory Compliance — Compliant with RoHS Directive (2011/65/EU, (EU)2015/863).

Typical Applications

• AC Servomotor Regeneration — Handles high‑frequency regenerative voltages in servo drive circuits to stabilize DC bus energy.
• General Inverters — Bulk energy storage and smoothing for inverter DC link circuits in industrial drives and power conversion systems.
• Voltage‑Fluctuating Equipment — Suitable for equipment operating in environments with frequent voltage swings where rapid charge/discharge is required.
• Rectifier Circuits / Voltage Doublers — Used in rectifier and voltage‑doubler circuits requiring polarized high‑voltage capacitance and endurance.

Unique Advantages

• Application‑Focused Design: Specifically built for high‑frequency regenerative and charge–discharge environments, aligning capacitance and ripple specs with power‑electronic needs.
• Robust Terminal Connection: Screw terminals provide secure, low‑impedance connections suitable for repeated maintenance and heavy current paths.
• High Ripple Capability: Defined ripple current ratings at both 120 Hz and 10 kHz allow selection based on mains and switching frequencies.
• Elevated Temperature Endurance: 5000‑hour endurance at 85 °C supports reliable operation in thermally demanding installations.
• Standards Compliance: RoHS compliance facilitates integration into designs targeting regulatory conformity.
• Clear Specification Set: Straightforward electrical and mechanical values (820 µF, 350 V, −25 °C to +85 °C) make selection and system integration easier for power designers.

Why Choose LQR2V821MSEC?

The LQR2V821MSEC from Nichicon's LQR series delivers a combination of high voltage, substantial capacitance, and engineered charge–discharge capability for power‑electronics applications. Its screw‑terminal package and defined ripple current ratings make it appropriate for inverter DC links, regenerative servo circuits, and other systems where reliable bulk energy storage and frequent charge cycles are required.

With a specified operating range of −25 °C to +85 °C and a 5000‑hour endurance at 85 °C, this capacitor is aimed at engineers and procurement teams specifying components for robust industrial power designs that require verifiable, long‑term performance and regulatory compliance.

Request a quote or contact sales for pricing, lead times, and availability of LQR2V821MSEC to support your design and procurement planning.