LNU2G472MSEH

The LNU2G472MSEH is a screw‑terminal aluminum electrolytic capacitor designed for high‑voltage industrial applications. It provides 4700 µF capacitance at a 400 V rated voltage in a compact radial can with screw terminals, optimized for inverter circuitry and high‑frequency regenerative systems.

Engineered for demanding environments, the capacitor supports operation from −40 °C to +105 °C, a rated voltage range up to DC525 V across the LNU series, and a 5000‑hour load life under rated ripple at 105 °C, making it suitable for industrial power supplies and charge/discharge applications.

Key Features

• Capacitance & Voltage: 4700 µF (4.7 mF) nominal capacitance with a 400 V rated voltage; capacitance tolerance ±20% (120 Hz, 20 °C).
• Screw Terminal Package: Radial can with screw terminals for secure, low‑impedance connections in power assemblies; nominal bolt size M5 for the 76.2 mm diameter unit.
• High Temperature Endurance: Rated for −40 °C to +105 °C with an endurance (load life) of 5000 hours at 105 °C under rated ripple conditions.
• High Ripple Current Capability: Specified ripple current 15.8 A at 120 Hz and 22.12 A at 10 kHz, supporting high ripple environments common in inverter and regenerative circuits.
• Robust Charge‑Discharge Endurance: Series specification includes endurance for extensive charge–discharge cycling (50 million cycles at specified conditions), suitable for high‑speed charge/discharge loading.
• Insulation & Voltage Proof: Insulation resistance >100 MΩ at DC 500 V between terminal and bracket; withstands AC 2500 V for 1 minute without abnormality.
• Compact High‑Voltage Design: High‑voltage LNU series offers smaller size versus LNT series; this part measures Ø76.2 mm × 95 mm length (nominal).
• RoHS Compliant: Conforms to RoHS directives (2011/65/EU, (EU)2015/863).

Typical Applications

• Industrial Inverter Power Supplies: Bulk energy storage and DC bus smoothing in inverter modules where high voltage and high ripple current handling are required.
• AC Servomotor Regeneration: Handling high‑frequency regenerative voltage in servo drives and motor control systems.
• High‑Speed Charge/Discharge Circuits: Applications requiring frequent charge/discharge cycles at elevated temperatures and voltages.

Unique Advantages

• High Voltage Handling: 400 V nominal rating with the LNU series rated up to DC525 V provides headroom for high‑voltage power systems.
• Long High‑Temperature Life: 5000 hours at 105 °C under rated ripple current helps ensure durability in hot industrial environments.
• Strong Ripple Performance: Specified ripple current at both low and high frequencies supports robust DC bus performance and reduced heating.
• Secure Screw‑Terminal Connections: Screw terminals (M5 nominal) enable reliable, low‑resistance connections for high‑current power assemblies.
• Compact Footprint for Voltage Class: Smaller physical size compared with related series while maintaining high‑voltage capability, aiding board and enclosure space optimization.
• Electrical Safety Margins: High insulation resistance and voltage‑proof characteristics between terminal and bracket contribute to system reliability.

Why Choose LNU2G472MSEH?

The LNU2G472MSEH positions itself as a robust option for designers of industrial power electronics who need high capacitance at elevated voltages with reliable, long‑term performance at 105 °C. Its screw‑terminal form factor and specified ripple current ratings make it well suited for inverter power supplies, regenerative drives, and high‑speed charge/discharge applications.

With RoHS compliance, defined leakage and endurance specifications, and compact dimensions for its voltage class, this Nichicon LNU series part offers a balance of performance and durability for demanding industrial designs that require proven high‑voltage electrolytic energy storage.

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