LNU2H182MSEH

The LNU2H182MSEH is a screw-terminal aluminum electrolytic capacitor designed for high-voltage industrial power applications. As a member of Nichicon's LNU series, this polarized radial can delivers 1.8 mF (1800 µF) capacitance at a 500 V rating, with an operating temperature range of –40 °C to +105 °C and a load life specified at 5000 hours at 105 °C.

Engineered for inverter circuitry and high-frequency regenerative voltage environments, this capacitor balances high-voltage capability and compact sizing while supporting high-speed charge–discharge loads and elevated ripple currents.

Key Features

• Rated Capacitance — 1.8 mF (1800 µF) with ±20% tolerance (120 Hz, 20 °C).
• High Voltage Capability — Rated at 500 V DC; LNU series rated voltage range up to DC 525 V.
• Screw Terminal Package — Radial can with screw terminals for robust, low-impedance connections; brackets supplied separately.
• High Temperature and Long Life — Operates from –40 °C to +105 °C with an endurance rating of 5000 hours at 105 °C under rated ripple current.
• High Ripple Current and Fast Charge–Discharge — Rated ripple handling of 7.4 A at 120 Hz and 10.36 A at 10 kHz; designed to cope with high-speed charge–discharge loading.
• Compact High-Voltage Design — High-voltage performance in a smaller size compared to LNT series units.
• Polarized — Standard polarized electrolytic capacitor construction.
• RoHS Compliant — Conforms to the RoHS directive (2011/65/EU, (EU)2015/863).
• Physical Size — Length 7.0 cm × Diameter 7.62 cm; maximum seated height 2.756 inch.

Typical Applications

• Industrial Inverter Power Supplies — Bulk energy storage and smoothing in industrial inverter front ends and DC bus systems.
• AC Servomotor Regenerative Circuits — Handling high-frequency regenerative voltages and frequent charge–discharge cycles in servo drives.
• General Inverter Systems — Energy buffering and ripple suppression in general-purpose inverter and motor-drive applications.

Unique Advantages

• High-Voltage in a Compact Package: Delivers 500 V rating (series up to 525 V) while being smaller than comparable LNT series parts, saving PCB and enclosure space.
• Designed for Harsh Thermal Duty: –40 °C to +105 °C range with 5000-hour load life at 105 °C supports demanding industrial environments.
• Strong Ripple and Frequency Performance: Rated ripple currents of 7.4 A (120 Hz) and 10.36 A (10 kHz) support high-frequency switching and regenerative loads.
• Durable Mechanical Connection: Screw terminal mounting provides reliable, low-resistance connections suitable for high-current bus configurations.
• Charge–Discharge Endurance: Series-level validation includes endurance under repeated charge–discharge cycles (50 million cycles per datasheet), supporting frequent switching events.
• Regulatory Compliance: RoHS conformity for use in regulated manufacturing environments.

Why Choose LNU2H182MSEH?

LNU2H182MSEH positions itself as a robust high-voltage energy-storage component for industrial power electronics where high ripple handling, frequent charge–discharge, and elevated temperature endurance are required. Its screw-terminal radial can package and compact footprint make it suitable for inverter DC buses, regenerative circuits, and other demanding power-supply applications.

Choose this capacitor when your design requires a polarized, high-voltage solution with verifiable ripple ratings, long life at 105 °C, and series backing from Nichicon's LNU family for consistent performance in industrial settings.

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