LQR2G332MSEFBN

The LQR2G332MSEFBN is a screw-terminal aluminum electrolytic capacitor in Nichicon’s LQR series, rated at 3300 µF (3.3 mF) and 400 V. It is a radial can with screw terminals designed for high-speed charge–discharge and applications that encounter high-frequency regenerative voltages or fluctuating line conditions.

Designed for general inverter and AC servomotor power circuits, this polarized capacitor offers robust ripple handling, defined endurance at elevated temperature, and RoHS compliance for use in industrial and power-electronics designs.

Key Features

• Capacitance and Voltage — 3300 µF (3.3 mF) nominal capacitance at 400 V rating, suitable for bulk energy storage and smoothing in high-voltage DC link circuits.
• High-speed charge–discharge — Engineered for high-speed charge–discharge behavior and suited to high-frequency regenerative voltages encountered in AC servomotor and inverter systems.
• Ripple current performance — Rated ripple current: 13.7 A at 120 Hz and 19.18 A at 10 kHz, enabling reliable ripple handling across low and high frequency ranges.
• Equivalent Series Resistance (ESR) — ESR of 150 mΩ at 120 Hz, supporting efficient energy transfer and heat management under ripple loading.
• Temperature and lifetime — Operating range −25 °C to +85 °C with an endurance rating of 5000 hours at 85 °C under rated conditions.
• Durability under cycling — Series-level endurance for charge–discharge behavior: specified to meet performance after 20 million cycles (ΔV = rated voltage × 0.3, 3 Hz) at room temperature.
• Polarized, screw-terminal package — Radial can with screw terminals for secure electrical and mechanical connections in power assemblies.
• Capacitance tolerance — ±20% at 120 Hz, 20 °C.
• RoHS compliant — Compliant to the RoHS Directive (2011/65/EU, (EU)2015/863).

Typical Applications

• Industrial inverters and drives — Bulk DC-link and regenerative energy buffering in general inverter and AC servomotor power stages that require high-speed charge–discharge capability.
• Regenerative motor control — Absorbing high-frequency regenerative voltages and stabilizing DC bus levels in motor control systems.
• Rectifier and voltage-doubler circuits — Suited for rectifier circuits including voltage-doubler configurations where high-voltage bulk capacitance and reliable ripple performance are required.
• Equipment in fluctuating-voltage environments — Power-conditioning and energy storage in installations exposed to variable line conditions or frequent transients.

Unique Advantages

• High-voltage bulk storage: 3300 µF at 400 V provides substantial energy storage for DC-link applications, reducing requirement for multiple smaller capacitors.
• Designed for fast charge–discharge: Construction and series design target high-speed charge–discharge endurance, supporting regenerative and dynamic load conditions.
• Measured ripple capability: Explicit ripple current ratings at both 120 Hz and 10 kHz allow designers to size capacitors with known thermal and ripple performance.
• Long endurance at elevated temperature: 5000 hours at 85 °C rating gives predictable lifetime under sustained high-temperature operation.
• Secure screw-terminal mounting: Radial can with screw terminals simplifies robust electrical connections and mechanical mounting in power assemblies.
• Regulatory readiness: RoHS compliance supports deployment in regions and products requiring restricted-substance conformance.

Why Choose LQR2G332MSEFBN?

LQR2G332MSEFBN combines high-voltage bulk capacitance with screw-terminal robustness and defined endurance characteristics, making it well suited to industrial power-electronics designs that demand reliable DC-link energy storage and high-speed charge–discharge behavior. Its specified ESR, ripple current ratings, and 5000-hour endurance at 85 °C provide designers with verifiable parameters for thermal and lifetime planning.

This capacitor is ideal for engineers developing inverters, motor drives, and rectifier systems operating in fluctuating-voltage environments who require predictable performance and long-term reliability backed by series-level endurance and charge–discharge qualifications.

Request a quote or submit an inquiry to sales to discuss pricing, availability, and integration guidance for the LQR2G332MSEFBN in your power-electronics design.