LNU2W332MSEHBB

The LNU2W332MSEHBB is an aluminum electrolytic capacitor in a screw‑terminal, radial can package designed for industrial power applications. This 3.3 mF, 450 V polarized capacitor is built for high‑voltage inverter and regenerative circuits and for systems requiring sustained performance at elevated temperatures.

Part of Nichicon’s LNU series, the device delivers a compact high‑voltage option with a rated operating range up to DC 525 V across the series, a rated temperature range of −40 °C to +105 °C and a 5000‑hour load life at 105 °C under rated ripple conditions.

Key Features

• Capacitance and Voltage — 3.3 mF (3300 µF) nominal capacitance with a rated voltage of 450 V; series rated voltage range up to DC 525 V.
• High‑Temperature Endurance — Designed for −40 °C to +105 °C operation with a 5000‑hour endurance specification at 105 °C under rated ripple and DC bias.
• High Ripple Current Capability — Supports 14.4 A at 120 Hz and 20.16 A at 10 kHz, suitable for demanding ripple and high‑frequency loading.
• Charge‑Discharge Durability — Specified to withstand charge/discharge endurance testing up to 50 million cycles (ΔV = rated voltage −0.3 V, 3 Hz) per series data.
• Robust Electrical Safety Characteristics — Insulation resistance greater than 100 MΩ at DC 500 V (between terminal and bracket) and AC 2500 V voltage proof between terminal and bracket.
• Mounting and Package — Screw terminal, radial can package with M5 terminal studs for secure bolted connections; polarized design for DC power applications.
• Environmental Compliance — RoHS compliant (2011/65/EU, (EU)2015/863).
• Mechanical Footprint — Compact physical dimensions: length 9.5 cm × diameter 7.62 cm, enabling space‑efficient placement in power assemblies.

Typical Applications

• Industrial Inverter Power Supplies — Used in inverter front‑end and smoothing applications where high voltage and sustained ripple handling are required.
• AC Servomotor Regenerative Circuits — Suited for high‑frequency regenerative voltage absorption and charge/discharge loading in motor drive systems.
• General Inverters and Motor Drives — Designed for DC bus and energy buffering duties in industrial motor control and drive electronics.
• High‑Frequency Power Systems — Applicable where high ripple current at kHz frequencies and fast charge/discharge cycles are present.

Unique Advantages

• High‑Voltage, Smaller Footprint: LNU series offers high voltage capability with a reduced size compared with previous LNT models, allowing denser power module layouts.
• High Ripple and HF Performance: Rated ripple currents of 14.4 A (120 Hz) and 20.16 A (10 kHz) support robust performance in high‑frequency and high‑load environments.
• Extended High‑Temperature Lifetime: 5000 hours at 105 °C under rated ripple ensures long service life in thermally demanding installations.
• Durable Charge/Discharge Endurance: Specified endurance for repeated charge/discharge cycles (50 million cycles) improves reliability in regenerative and pulsed applications.
• Electrical Safety Margins: High insulation resistance and a 2500 V voltage proof rating between terminal and bracket provide added reliability for high‑voltage assemblies.
• Regulatory Compliance: RoHS conformity simplifies compliance in regulated industrial products.

Why Choose LNU2W332MSEHBB?

The LNU2W332MSEHBB balances high capacitance and voltage capability with a compact screw‑terminal can package engineered for inverter and regenerative power electronics. Its combination of high ripple tolerance, charge/discharge endurance, and extended high‑temperature lifetime makes it well suited to industrial power supplies, motor drives and other high‑stress DC power applications.

This Nichicon LNU series part is aimed at designers who need proven electrical robustness in confined spaces and who require components rated for continuous operation up to 105 °C with documented endurance and insulation characteristics.

Request a quote or submit an inquiry to sales for pricing, lead time and availability for the LNU2W332MSEHBB.