LQR2G332MSEF

The LQR2G332MSEF is an aluminum electrolytic capacitor from Nichicon's LQR series, supplied in a screw‑terminal radial can package. It is designed for high‑frequency regenerative voltage and energy storage in industrial power systems.

With a 3.3 mF capacitance at 400 V, low ESR and high ripple handling, this polarized capacitor targets motor drives, inverters and rectifier applications where sustained ripple current, charge‑discharge endurance and operation to 85 °C are required.

Key Features

• Capacitance & Rated Voltage — 3.3 mF (3300 μF) capacitance with a 400 V rated voltage and ±20% tolerance, suitable for DC link and energy buffering roles.
• Screw‑terminal, radial can package — Screw terminal mounting provides secure, low‑impedance connections for high current applications; package style listed as radial, can with screw terminals.
• High ripple current capability — Rated ripple current of 13.7 A at 120 Hz and 19.18 A at 10 kHz supports continuous high‑frequency operation and regenerative loads.
• Low equivalent series resistance (ESR) — ESR of 150 mΩ measured at 120 Hz helps reduce heating and voltage drop under load.
• Operating temperature & endurance — Specified for −25 °C to +85 °C operation with a rated life of 5000 hours at 85 °C under rated conditions.
• Charge–discharge durability — Series endurance characterization includes charge/discharge testing (20 million cycles at ΔV = rated voltage × 0.3, 3 Hz), supporting repeated regenerative events.
• RoHS compliant — Complies with the RoHS directive (2011/65/EU, (EU)2015/863).
• Physical footprint — Compact form factor with dimensions L: 15 × D: 5.1 cm, suitable for equipment rack and chassis installations.

Typical Applications

• Industrial motor drives — Energy buffering and regenerative voltage handling for AC servomotors and drive systems.
• Power inverters — DC link smoothing and ripple filtering in general inverter topologies.
• Voltage‑doubler rectifier circuits — Energy storage and smoothing in rectifier circuits that use voltage doubling.
• Equipment in fluctuating voltage environments — Robust ripple and endurance characteristics make it suitable where supply voltage can vary.

Unique Advantages

• High ripple tolerance: Specified ripple currents at both low and high frequencies reduce the need for parallel components to share ripple stress.
• Low ESR for thermal efficiency: 150 mΩ ESR at 120 Hz minimizes internal heating and improves lifetime under continuous ripple load.
• Proven endurance profile: Rated life of 5000 hours at 85 °C and series charge–discharge endurance testing support longevity in demanding power cycles.
• Secure screw‑terminal connections: Screw terminals provide reliable, low‑impedance terminations suited to high current and field service environments.
• Broad industrial temperature range: Rated for −25 °C to +85 °C operation to cover common industrial ambient conditions.
• Regulatory compliance: RoHS compliance simplifies integration into equipment that must meet environmental directives.

Why Choose LQR2G332MSEF?

The LQR2G332MSEF positions itself as a durable, high‑voltage solution for industrial power electronics where high ripple current, low ESR and long operating life matter. Its screw‑terminal radial can construction and validated endurance behavior make it appropriate for designers building motor drives, inverters and rectifier stages that require stable energy buffering under frequent charge/discharge cycles.

Engineers and procurement teams will find this part useful when they need a high‑voltage polarized capacitor with measurable ripple capability, documented endurance and RoHS compliance for long‑term system reliability.

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