LNU2W332MTEH

The LNU2W332MTEH from Nichicon is a screw-terminal, stud bolt mount aluminum electrolytic capacitor in the LNU series, providing 3300 µF capacitance at a 450 V rating. Designed for industrial power applications, this radial can with screw terminals serves high-voltage DC link, inverter and regenerative circuits where high ripple handling and thermal endurance are required.

Key value comes from its combination of high voltage capability, high ripple-current handling at both low and high frequencies, and extended life at elevated temperature—supporting robust performance in demanding power-electronics environments.

Key Features

• Capacitance & Voltage — 3.3 mF (3300 µF) nominal capacitance rated at 450 V DC, with tolerance of -20% to +20%.
• High Ripple Current — Low-frequency ripple current 14.4 A (120 Hz) and high-frequency ripple current 20.16 A (10 kHz), enabling effective smoothing and energy buffering under heavy AC/DC ripple conditions.
• Thermal Endurance — Rated operating temperature range −40 °C to +105 °C with a rated load life of 5000 hours at 105 °C when subjected to rated ripple current.
• Low-Frequency Loss — Tangent of loss angle (tan δ) specified as 0.2 at 20 °C, 120 Hz for predictable dissipation characteristics.
• Leakage and Insulation — Leakage current listed as 3650 µA (with datasheet method: after voltage application) and insulation resistance greater than 100 MΩ at DC 500 V between terminal and bracket per series specifications.
• Mechanical & Mounting — Stud bolt mount (radial can with screw terminals) for secure, low-inductance connections; physical size φ76.2 × 95 mm (D × L) supports compact high-voltage assemblies.
• Compliance & Packaging — RoHS compliant and supplied in cardboard packing; mass-production status for predictable supply.

Typical Applications

• Industrial Inverters — DC link and smoothing in inverter power stages where 450 V rating and high ripple capability are needed.
• Regenerative Drives — Energy buffering for high-frequency regenerative voltages in AC servomotor and drive systems.
• High-Speed Charge–Discharge Circuits — Applications requiring repeated charge/discharge loading, supported by the series’ charge–discharge endurance characteristics.
• General-Purpose Power Supplies — Bulk energy storage and ripple suppression in industrial power supplies operating at elevated temperatures.

Unique Advantages

• High-voltage capability: 450 V rating provides margin for DC-link and inverter applications without requiring series stacking.
• Robust ripple handling: Specified ripple currents at both 120 Hz and 10 kHz facilitate reliable performance across mains-frequency and switching-frequency conditions.
• Extended high-temperature life: 5000 hours at 105 °C supports long-term operation in thermally demanding power-electronics environments.
• Secure, low-inductance connections: Stud bolt mount with screw terminals simplifies high-current wiring and mechanical retention in industrial assemblies.
• Predictable electrical behavior: Specified tan δ and leakage figures at standard measurement conditions help with thermal and loss budgeting in design.
• RoHS compliant and mass-produced: Environmental compliance and production availability simplify sourcing and regulatory considerations.

Why Choose LNU2W332MTEH?

LNU2W332MTEH combines a 3300 µF capacitance with a 450 V rating and engineered ripple-current capability to address demanding industrial power-electronics tasks such as inverter DC links, regenerative drives, and high-speed charge–discharge systems. Its stud-bolt screw-terminal construction and compact φ76.2 × 95 mm form factor enable secure high-current connections and space-efficient layouts.

Manufactured by Nichicon and offered in mass production with RoHS compliance, this capacitor is appropriate for designs that prioritize high-voltage durability, thermal endurance at up to 105 °C, and verifiable electrical performance over long operational lifetimes.

Request a quote or submit an inquiry to discuss pricing, availability, and how LNU2W332MTEH can fit into your power-electronics design.