LQR2V822MSEGBN

The LQR2V822MSEGBN is an aluminum electrolytic capacitor in a screw‑terminal radial can designed for high‑speed charge–discharge applications. With 8.2 mF capacitance at 350 V and an 85°C category temperature rating, it is optimized for high‑frequency regenerative voltages and power conversion circuits.

Targeted use cases include AC servomotor regenerative systems, general inverters and equipment exposed to fluctuating supply voltages. Its combination of high capacitance, elevated voltage rating and screw‑terminal mounting delivers robust energy buffering and secure electrical connections for industrial power systems.

Key Features

• Capacitance & Voltage — 8.2 mF (8200 µF) rated at 350 V, providing substantial energy storage for power conversion and regenerative circuits.
• High‑speed charge–discharge performance — Designed for rapid charge–discharge cycling and specified endurance for charge–discharge behavior (20 million cycles at ΔV = rated voltage × 0.3, 3 Hz).
• Ripple current capability — Rated ripple current of 27.1 A at 120 Hz and 37.94 A at 10 kHz, supporting both low‑ and high‑frequency power ripple conditions.
• Endurance and lifetime — 5000 hours at 85°C under rated conditions; post‑endurance limits: capacitance change within ±20%, tan δ ≤ 300% of initial, leakage current ≤ initial specified value.
• Operating temperature range — Specified for −25°C to +85°C to accommodate a wide range of industrial environments.
• Leakage current specification — After 5 minutes at rated voltage, leakage current is not more than 3√(V) µA or 5 mA, whichever is smaller (at 20°C).
• Low‑temperature stability — Impedance ratio Z(−25°C)/Z(+20°C) ≤ 8, ensuring predictable performance at reduced temperatures.
• Robust mechanical package — Radial can with screw terminals for secure mounting and electrical connections; physical dimensions: length 19 cm × diameter 6.35 cm, seated height max 7.48 inch.
• Regulatory — Compliant with the RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

• AC servomotor regenerative systems — Provides energy buffering and handles high‑frequency regenerative voltage pulses in motor drive regenerative loops.
• General inverter power stages — Supports DC bus smoothing and transient absorption in inverter front‑end and DC link applications.
• Equipment in fluctuating‑voltage environments — Stabilizes supply rails and mitigates voltage swings in systems subjected to unstable mains or variable input conditions.
• Rectifier and voltage‑doubler circuits — Suited for smoothing and energy storage in rectifier topologies including voltage doublers.

Unique Advantages

• High energy density at elevated voltage: 8.2 mF at 350 V provides significant stored energy for DC link and regenerative buffering without multiple smaller capacitors.
• Dual‑frequency ripple capacity: Specified ripple currents at both 120 Hz and 10 kHz enable designers to account for low‑ and high‑frequency stress in power electronics.
• Designed for heavy cycling: Endurance for 20 million charge–discharge cycles at the defined ΔV highlights suitability for repetitive regenerative events.
• Thermal endurance: 5000 hours at 85°C ensures predictable lifetime under elevated operating temperatures common in power assemblies.
• Secure, serviceable connections: Screw‑terminal radial can package simplifies installation and provides reliable electrical and mechanical connection in industrial systems.
• RoHS compliant: Meets RoHS directive requirements for restricted substances.

Why Choose LQR2V822MSEGBN?

The LQR2V822MSEGBN combines high capacitance and a 350 V rating with targeted features for high‑speed charge–discharge and regenerative power handling, making it well suited to inverter, motor drive and fluctuating‑voltage power designs. Its specified ripple current ratings and endurance data give engineers measurable criteria for thermal and lifetime planning.

Manufactured by Nichicon, this screw‑terminal aluminum electrolytic capacitor is intended for designs that require substantial energy storage, robust mounting and predictable long‑term behavior under elevated temperature and frequent cycling conditions.

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