LNU2W392MSEGBN

The LNU2W392MSEGBN from Nichicon is a screw-terminal aluminum electrolytic capacitor rated at 3.9 mF (3900 µF) and 450 V DC. It is a radial can with screw terminals designed for industrial power and inverter applications that require high-voltage energy storage in a compact package.

Built for demanding thermal and electrical environments, this part supports operation from –40 °C to +105 °C, features a 5000-hour load life at 105 °C, and is supplied in cardboard packaging for mass-production use.

Key Features

• Capacitance & Rated Voltage — 3.9 mF (3900 µF) at 450 V DC with ±20% tolerance, suitable for high-voltage energy storage and smoothing.
• High-Temperature Endurance — Rated for operation to 105 °C with a specified load life of 5000 hours at 105 °C under rated ripple conditions.
• Screw Terminal Mounting — Radial can with screw terminals (M5 nominal bolt) for robust, low-impedance connections in power assemblies.
• Ripple Current Capability — Specified ripple current of 16.3 A at 120 Hz and 22.82 A at 10 kHz for handling low- and high-frequency ripple loads.
• Compact High-Voltage Design — Part of the LNU series designed for high-voltage capability with a smaller footprint relative to comparable devices in the series.
• Wide Temperature Range — Operating range from –40 °C to +105 °C for use in harsh thermal environments.
• Reliability & Safety Characteristics — Datasheet-specified leakage current limits, insulation resistance >100 MΩ at DC 500 V, and AC 2500 V voltage proof between terminal and bracket.
• RoHS Compliant & Production Ready — RoHS status compliant and supplied in cardboard packing suitable for volume production.

Typical Applications

• Industrial inverter power supplies — Energy storage and smoothing for DC link stages in inverter systems.
• AC servomotor regenerative circuits — Handling high-frequency regenerative voltages and charge-discharge cycles in motion-control systems.
• High-frequency charge/discharge systems — Suitable where fast charge-discharge behavior and endurance are required (datasheet endurance specified for the series).
• General-purpose high-voltage power supplies — Bulk capacitance and ripple handling in high-voltage supply rails.

Unique Advantages

• High Voltage Handling: 450 V rating (series up to 525 V) enables use in higher-voltage DC link and power-supply designs.
• Designed for Elevated Temperatures: 105 °C rating and 5000-hour load life at that temperature provide predictable long-term performance in hot environments.
• Screw-Terminal Robustness: Screw terminals and M5 nominal bolt mounting deliver secure electrical and mechanical connections for industrial assemblies.
• Proven Ripple Performance: Specified ripple currents at both 120 Hz and 10 kHz help ensure the capacitor can support common low- and high-frequency ripple conditions.
• Series Reliability Features: Series-level characteristics such as leakage current limits, insulation resistance, and voltage-proof testing support system-level reliability.
• Production-Ready Packaging: Cardboard packing and mass-production availability simplify procurement and assembly for volume designs.

Why Choose LNU2W392MSEGBN?

The LNU2W392MSEGBN combines high-voltage capability, substantial capacitance, and a compact screw-terminal can for demanding industrial power applications. Its 105 °C rating and 5000-hour load-life specification make it suitable where thermal endurance and long-term electrical stability are required.

This part is well suited to engineers designing inverter DC links, regenerative motor drives, and high-frequency charge/discharge systems who need a reliable, production-ready capacitor with clear datasheet specifications for ripple current, insulation, and endurance.

Request a quote or submit an inquiry to receive pricing and availability information for LNU2W392MSEGBN and to discuss volume packaging or lead-time requirements.