LQR2V822MSEG

The LQR2V822MSEG from Nichicon is a screw‑terminal aluminum electrolytic capacitor in the LQR series designed for high‑speed charge/discharge and high‑energy storage at 350 V. With an 8.2 mF capacitance and a screw‑terminal radial can package, it targets inverter, motor‑drive and power‑conversion equipment where regenerative voltage, voltage fluctuation and voltage‑doubler rectifier circuits are encountered.

Engineered for industrial power electronics, the part offers robust ripple handling and long life under elevated temperature stress while maintaining RoHS compliance.

Key Features

• High Capacitance and Voltage: 8.2 mF (8200 µF) nominal capacitance at a 350 V rated voltage for bulk energy storage in power conversion and drive systems.
• Screw Terminal Mounting: Radial can with screw terminals for secure mechanical and electrical connections in high‑current power assemblies.
• Wide Operating Temperature: Rated for −25 °C to +85 °C to cover a broad range of industrial environments.
• High Ripple Endurance: Rated ripple current of 27.1 A at 120 Hz and 37.94 A at 10 kHz to support both low‑ and high‑frequency ripple conditions.
• Long Life under Load: Endurance specified as 5000 hours at 85 °C with D.C. bias plus rated ripple current; capacitance change and leakage remain within specified limits after test.
• Charge‑Discharge Durability: Endurance of charge/discharge behavior verified for 20 million cycles (ΔV = 0.3 × rated voltage, 3 Hz) with maintained electrical characteristics.
• Leakage Current Specification: Leakage after 5 minutes at 20 °C is not more than 3√(√V) μA or 5 mA, whichever is smaller, per datasheet measurement conditions.
• RoHS Compliant: Meets RoHS directive (2011/65/EU, (EU)2015/863) for restricted substances.
• Physical Size: Length 19 cm × Diameter 6.35 cm for planning board layout and mechanical integration; printed white marking on dark brown sleeve for polarity and identification.

Typical Applications

• AC Servo and Motor Drives: Energy buffering and regenerative voltage handling in servomotor inverters and drive systems.
• General Inverters: Bulk storage and ripple management in inverter DC‑link and regenerative circuits where voltage can fluctuate.
• Voltage Doubler Rectifier Circuits: Suited for rectifier stages using voltage doubler topology that require large capacitance at elevated DC voltages.
• Industrial Power Electronics: Use in power supplies and converters that demand high ripple current capability and long operational life at elevated temperature.

Unique Advantages

• High energy density at 350 V: Enables reduced capacitor count for bulk storage in DC‑link and regenerative circuits.
• Screw‑terminal reliability: Provides secure, low‑resistance connections suitable for repeated maintenance and high‑current busbars.
• Designed for high ripple environments: Specified ripple current at both 120 Hz and 10 kHz supports mixed frequency stress in modern power systems.
• Proven endurance specs: 5000 hours at 85 °C under rated conditions and 20 million charge/discharge cycles offer predictable life for system design and maintenance planning.
• Clear marking and form factor: White printed identification on a dark brown sleeve and defined mechanical dimensions simplify installation and inventory management.
• Regulatory compliance: RoHS conformity supports deployment in regions requiring restricted‑substances compliance.

Why Choose LQR2V822MSEG?

The LQR2V822MSEG positions itself as a practical choice for engineers designing industrial power electronics that require substantial energy storage, robust ripple handling and durable operation under elevated temperatures. Its screw‑terminal radial can package simplifies high‑current connections and field serviceability while the specified endurance and charge/discharge qualifications provide measurable reliability for lifecycle planning.

This part is well suited for designers of inverters, motor drives and rectifier stages who need a verified combination of capacitance, voltage rating and ripple capability paired with RoHS compliance and clear mechanical specifications from a known capacitor series.

If you would like technical pricing or availability, request a quote or contact sales to submit a quotation request for LQR2V822MSEG.