LNU2H472MSEJ

The LNU2H472MSEJ is a screw-terminal aluminum electrolytic capacitor from Nichicon’s LNU series. It provides a 4700 µF (4.7 mF) capacitance at a 500 V rated voltage in a compact radial can with screw terminals, designed for industrial power applications.

Engineered for inverter and regenerative circuits, this high-voltage, smaller-sized unit delivers extended load life and charge–discharge durability for demanding power-supply and motor-drive environments. The device is RoHS compliant and specified for operation from −40 °C to +105 °C.

Key Features

• Capacitance & Voltage: 4700 µF (4.7 mF) nominal capacitance with a 500 V rated voltage; part of a series rated up to DC 525 V.
• Temperature & Lifespan: Rated operating range −40 °C to +105 °C with a load life of 5000 hours at 105 °C under applied ripple current.
• Ripple Current Performance: Specified ripple current of 13.9 A at 120 Hz and 19.46 A at 10 kHz, enabling handling of significant AC stress in power circuits.
• Mechanical / Mounting: Screw terminal mounting in a radial can package for secure, low-resistance connections; physical size L: 12.5 × D: 9 cm and maximum seated height 4.921 inch.
• Polarized Electrolytic Design: Polarized capacitor construction with ±20% capacitance tolerance (120 Hz, 20 °C).
• Leakage & Dielectric Integrity: Leakage current after 5 minutes is specified as not more than 3√CV (µA) or 5 mA, whichever is smaller; insulation resistance >100 MΩ at DC 500 V between terminal and bracket and voltage proof AC 2500 V for 1 minute.
• Charge–Discharge Endurance: Designed to withstand repeated high-speed charge–discharge; datasheet specifies endurance over extensive cycles (charge–discharge behavior test per series specification).

Typical Applications

• Industrial Inverter Power Supplies: Bulk energy storage and ripple smoothing in inverter front-ends and DC link circuits where 400–525 V class operation is required.
• AC Servomotor Drives: Handling high-frequency regenerative voltages and providing stable DC bus performance in servo and motion-control systems.
• General Regenerative/Inverter Systems: Suited for high-speed charge–discharge loading and regenerative circuits in industrial motor drives and power conversion equipment.

Unique Advantages

• High-Voltage Capability: 500 V rating (series up to DC 525 V) supports higher-voltage power designs without stacking multiple capacitors.
• Compact High-Voltage Packaging: Marketed as smaller sized than the LNT series, enabling space savings in DC link and power-supply layouts.
• Robust Thermal Endurance: Rated to 105 °C with a specified 5000-hour load life under ripple current, helping maintain capacitance and performance over long service intervals.
• High Ripple Current Handling: Specified ripple current figures at both 120 Hz and 10 kHz support designs with significant AC stress and high-frequency components.
• Secure Screw-Terminal Connections: Screw terminal mounting simplifies field wiring and provides mechanically reliable, low-impedance connections for high-current applications.
• Charge–Discharge Durability: Series-level endurance testing for repeated charge–discharge cycles supports applications with frequent voltage swings and regenerative events.

Why Choose LNU2H472MSEJ?

The LNU2H472MSEJ targets engineers designing medium- to high-voltage industrial power systems that require compact, high-capacitance DC link and energy-storage components. Its combination of 500 V rating, substantial capacitance, elevated operating temperature, and specified ripple current performance makes it suitable for inverter supplies, servo drives, and regenerative circuits where reliability and compact form factor matter.

As part of Nichicon’s LNU series, this screw-terminal aluminum electrolytic capacitor offers defined endurance and leakage characteristics, insulation and voltage-proof specifications, and a form factor intended to simplify integration into industrial power modules and motor-control systems.

If you would like pricing or availability for LNU2H472MSEJ, please request a quote or contact sales with your application details and required quantities.