LNU2W332MSEG

The LNU2W332MSEG is a screw‑terminal aluminum electrolytic capacitor from Nichicon’s LNU series, engineered for industrial power electronics. This radial can capacitor delivers 3.3 mF capacitance at a 450 V DC rating and is designed for high‑temperature operation up to 105°C.

Suited for inverter circuitry, regenerative drives and other high‑frequency power applications, the LNU2W332MSEG emphasizes high‑voltage capability, compact sizing, and extended operational life for demanding industrial environments. It is RoHS compliant.

Key Features

• Capacitance & Voltage — 3.3 mF rated capacitance with a 450 V DC nominal rating and ±20% tolerance (120 Hz, 20°C).
• High‑Temperature Endurance — Rated for operation from −40°C to +105°C with a load life of 5000 hours at 105°C under rated ripple current.
• High Ripple Current Capability — Supports 15 A ripple current at 120 Hz and 21 A at 10 kHz, supporting high‑frequency switching and charge/discharge cycles.
• Screw Terminal Package — Radial can with screw terminals for secure, low‑impedance connections in power assemblies.
• Robust Electrical Characteristics — Leakage current limit per datasheet: after 5 minutes at rated voltage, leakage ≤ 3√(C·V) µA or 5 mA, whichever is smaller; insulation resistance >100 MΩ at DC 500 V between terminal and bracket.
• Mechanical Size — Compact radial can dimensions: L: 12 cm × D: 6.35 cm, providing a smaller footprint compared to larger series options.
• Regulatory — Compliant with the RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

• Industrial Inverters — Used as DC‑link and bulk energy storage in inverter circuitry for motor drives and power conversion.
• Regenerative Drive Circuits — Suited for high‑frequency regenerative voltages in AC servomotors and braking systems where rapid charge/discharge is required.
• Power Supplies — Applied in industrial power supplies that require high‑voltage filtering and sustained ripple handling at elevated temperatures.
• High‑Frequency Switching Systems — Supports applications with frequent charge/discharge cycles and high ripple currents at kHz switching frequencies.

Unique Advantages

• High‑Voltage Capability: 450 V rating provides wide DC bus support for industrial power systems.
• Compact Footprint: Smaller sized radial can enables space savings in power assemblies while maintaining high voltage performance.
• Extended High‑Temperature Life: 5000 hours at 105°C under rated ripple current offers predictable longevity in hot operating environments.
• High Ripple Tolerance: Specified ripple current at both 120 Hz and 10 kHz supports low‑impedance operation in high‑frequency circuits.
• Screw‑Terminal Reliability: Robust screw terminals provide secure electrical and mechanical connections for industrial installations.
• Regulatory Compliance: RoHS conformity supports deployment in regulated markets.

Why Choose LNU2W332MSEG?

The LNU2W332MSEG combines high voltage rating, substantial capacitance, and elevated temperature endurance in a compact screw‑terminal package, making it a practical choice for industrial power electronics designers. Its ripple current performance at both low and high frequencies and a rated load life of 5000 hours at 105°C provide a reliable energy‑storage solution for inverter, regenerative, and high‑frequency switching applications.

As a member of Nichicon’s LNU series, this part fits designs that require robust electrical performance, predictable aging characteristics, and RoHS compliance for industrial applications.

To request a quote or submit a specification inquiry for LNU2W332MSEG, please contact sales for pricing and availability details.