LQR2W472MSEGBB

The LQR2W472MSEGBB is a Nichicon LQR series aluminum electrolytic capacitor in a screw‑terminal radial can, offering 4.7 mF capacitance at a 450 V rating. It is designed for high‑speed charge/discharge and high‑frequency regenerative voltage environments.

Targeted at industrial power electronics, this polarized screw‑terminal capacitor is suited for use in AC servomotor drives, general inverters, equipment operating in fluctuating voltage areas, and rectifier circuits such as voltage doublers where robust energy buffering and high ripple handling are required.

Key Features

• Capacitance & Voltage — 4.7 mF (4700 µF) nominal capacitance at a 450 V rated voltage, with ±20% tolerance at 120 Hz, 20°C.
• Screw‑Terminal Radial Can — Screw terminal mounting for secure, high‑current connections in power assemblies.
• High‑speed Charge/Discharge — Designed for repetitive charge/discharge operation; series endurance includes specified performance after 20 million cycles (ΔV = rated voltage × 0.3, 3 Hz) at room temperature.
• High Ripple Handling — Ripple current ratings of 16.5 A at 120 Hz and 23.1 A at 10 kHz support high‑frequency and low‑frequency ripple environments.
• Equivalent Series Resistance (ESR) — ESR of 150 mΩ at 120 Hz to assist in managing power dissipation and ripple losses.
• Operating Temperature & Endurance — Rated for −25 °C to +85 °C with endurance of 5000 hours at 85 °C under DC bias plus rated ripple current.
• Polarized Construction — Polarized design appropriate for DC link and rectifier applications requiring electrolytic capacitance.
• Compliance — RoHS compliant (2011/65/EU, (EU)2015/863).
• Compact Footprint — Physical size L: 17 × D: 6.35 cm suitable for rack‑mounted and enclosure installations where screw terminals are preferred.

Typical Applications

• AC Servomotor Drives — Handles high‑frequency regenerative voltages and rapid charge/discharge cycles common in servo inverter DC links.
• General Inverters — Provides DC link energy buffering and ripple resilience in industrial inverter power stages.
• Rectifier Circuits / Voltage Doublers — Suited for rectifier and voltage‑doubler topologies that require large capacitance at high DC voltages.
• Equipment in Fluctuating Voltage Areas — Energy storage and damping for systems exposed to frequent voltage variation or transient events.

Unique Advantages

• High energy storage at high voltage: 4.7 mF at 450 V provides substantial DC link capacitance for industrial power designs.
• Screw‑terminal connectivity: Robust mechanical and electrical connections simplify assembly and support higher current terminations.
• Designed for frequent charge/discharge: Specified endurance for millions of charge/discharge cycles reduces risk in regenerative and pulsed applications.
• High ripple current capability: 16.5 A (120 Hz) and 23.1 A (10 kHz) ratings enable reliable operation under both low‑ and high‑frequency ripple loads.
• Thermal endurance: 5000 hours at 85 °C under rated conditions supports extended service life in elevated temperature environments.
• Standards compliance: RoHS conformity for environmental compliance in commercial and industrial equipment.

Why Choose LQR2W472MSEGBB?

The LQR2W472MSEGBB positions itself as a robust, application‑focused electrolytic solution for industrial power electronics that require large capacitance at high DC voltage with secure screw‑terminal connections. Its specification set—high ripple capability, defined charge/discharge endurance, and 85 °C rated operation—makes it suitable for inverter and regenerative drive designs that demand reliable DC link performance.

Engineers specifying this part gain a combination of high voltage energy storage, mechanical reliability in termination, and a clear endurance specification backed by Nichicon’s LQR series characteristics, supporting long‑term stability in demanding power environments.

Request a quote or contact sales to discuss pricing, availability, and to confirm suitability for your specific design requirements.