LNU2H182MSEHBB

The LNU2H182MSEHBB is a Nichicon LNU series aluminum electrolytic capacitor in a screw-terminal, radial can package. It provides 1800 µF capacitance at a 500 V rated voltage and is designed for high-voltage industrial power applications.

Engineered for inverter and regenerative circuits, this capacitor is suited to industrial power supplies and AC servomotor inverter systems where high-voltage handling, high-frequency regenerative tolerance and compact size are required. It is RoHS compliant.

Key Features

• Capacitance & Voltage — 1800 µF rated capacitance with a 500 V rated voltage; rated voltage range extends up to DC 525 V.
• High-temperature endurance — Rated operating temperature range −40°C to +105°C with a load life of 5000 hours at 105°C when subjected to rated ripple current.
• High ripple current capability — Rated ripple current of 7.4 A at 120 Hz and 10.36 A at 10 kHz to support high-frequency converter and regenerative loads.
• Screw terminal, radial can package — Robust screw terminal mounting for secure connections in industrial power assemblies; package type listed as radial can with screw terminals.
• Compact form factor — Smaller-sized design compared to the LNT series while delivering high-voltage performance; nominal body dimensions L: 7.0 cm × D: 7.62 cm.
• Durability and charge-discharge endurance — Specified to withstand charge–discharge endurance testing (50 million cycles reported in datasheet) and designed to tolerate high-speed charge/discharge loading.
• Leakage and insulation specifications — Leakage current specified as not more than 3√(C·V) µA or 5 mA (whichever is smaller) after 5 minutes at 20°C; insulation resistance greater than 100 MΩ at DC 500 V between terminal and bracket.
• Safety checks — Withstands AC 2500 V for 1 minute between terminal and bracket during voltage proof testing.
• Polarized — Polar electrolytic construction; capacitance tolerance ±20% (120 Hz, 20°C).
• RoHS compliant — Meets RoHS directive requirements (2011/65/EU, (EU)2015/863).

Typical Applications

• Industrial Inverter Power Supplies — Used as DC bus and smoothing capacitors in inverter front-ends where high voltage and long high-temperature life are required.
• AC Servomotor Regenerative Circuits — Designed to handle high-frequency regenerative voltages common to servo and motion-control drives.
• General Inverter and Power Conversion — Suitable for high-speed charge–discharge environments in motor drives, converters and industrial power electronics.

Unique Advantages

• High-voltage capability: 500 V rated (up to DC 525 V range) supports demanding DC bus and high-voltage converter designs without series stacking.
• Compact high-voltage design: Smaller physical size compared with the LNT series while maintaining high-voltage performance, allowing space savings in power assemblies.
• High ripple and frequency tolerance: Specified ripple current at both low and high frequencies supports designs with significant AC components and switching noise.
• Long high-temperature life: 5000 hours load life at 105°C under rated ripple conditions provides stability for prolonged industrial operation.
• Robust mechanical termination: Screw-terminals facilitate reliable, low-resistance connections in rugged industrial environments.
• Proven reliability tests: Meets insulation, voltage-proof and extended charge–discharge endurance requirements documented in the datasheet.

Why Choose LNU2H182MSEHBB?

The LNU2H182MSEHBB combines high-voltage capability, compact packaging and robust high-temperature life to meet the needs of industrial inverter and regenerative power designs. Its screw-terminal construction and validated ripple/current endurance make it suitable for demanding environments where reliable DC bus smoothing and high-frequency regenerative handling are required.

This capacitor is appropriate for engineers specifying components for industrial power supplies, motor drives and inverter systems who require verified endurance, clear electrical characteristics and RoHS compliance. Its long-term value is delivered through documented high-temperature performance and mechanical connection options that simplify integration into production assemblies.

Request a quote or contact sales to discuss availability, lead times and how the LNU2H182MSEHBB can fit into your power electronics design.