LNU2W472MTEG

The LNU2W472MTEG is a screw‑terminal aluminum electrolytic capacitor from Nichicon’s LNU series, specified at 4700 µF and 450 V. It is a stud bolt mount, radial can device designed for industrial power electronics where high voltage, high ripple capability and long life at elevated temperatures are required.

Typical use cases include inverter power supplies and motor drive circuitry that demand high‑frequency regenerative handling and frequent charge‑discharge cycles. The part offers long load life and robust insulation characteristics to support reliable operation in demanding industrial environments.

Key Features

• Capacitance & Voltage — Nominal capacitance 4700 µF (4.7 mF) with a rated voltage of 450 V; capacitance tolerance ±20% (120 Hz, 20°C).
• High‑Temperature Endurance — Operating temperature range −40°C to +105°C with a load life rated at 5000 hours at 105°C under rated ripple conditions.
• High Ripple Current Performance — Rated ripple current of 18.5 A at 120 Hz and 25.9 A at 10 kHz, supporting high‑frequency regenerative and inverter applications.
• Screw Terminal / Stud Bolt Mount — Radial can with screw terminals and stud bolt mounting for secure mechanical and electrical connections; brackets supplied separately as noted in the series documentation.
• Charge‑Discharge Durability — Endurance for charge‑discharge behavior demonstrated up to 50 million cycles (ΔV = rated voltage ±0.3, 3 Hz) per series specifications.
• Leakage, Insulation & Voltage Proof — Leakage current limited to 3√(C·V) µA or 5 mA (whichever is smaller) after 5 minutes; insulation resistance >100 MΩ at DC 500 V and AC 2500 V voltage proof for 1 minute between terminal and bracket.
• Compact High‑Voltage Design — LNU series described as high‑voltage and smaller sized relative to comparable series, enabling integration into space‑constrained power assemblies.
• RoHS Compliant — Meets RoHS directive requirements (2011/65/EU, (EU)2015/863).
• Physical Dimensions — Package length 16.5 cm × diameter 6.35 cm per part specifications for system planning.

Typical Applications

• Industrial Power Supplies (Inverter Circuits) — Energy storage and smoothing in inverter front‑end and DC link stages where high voltage handling and long life are required.
• AC Servomotor Regeneration — Handles high‑frequency regenerative voltage in servo drives to support energy recovery and stable DC bus performance.
• General Inverters and Motor Drives — Supports frequent charge‑discharge loading and high ripple currents common in motor drive and inverter topologies.

Unique Advantages

• High Voltage Capability: 450 V rating with series range up to DC 525 V, enabling use in higher‑voltage inverter and power conversion designs.
• Designed for High‑Frequency Regeneration: Elevated ripple current ratings at both 120 Hz and 10 kHz make the part suitable for regenerative and high‑frequency switching environments.
• Long‑Life at Elevated Temperatures: 5000 hours at 105°C under rated ripple ensures sustained performance in hot industrial enclosures.
• Robust Charge‑Discharge Endurance: Demonstrated endurance over millions of charge‑discharge cycles supports applications with frequent energy transfer events.
• Secure Mechanical Connection: Screw terminal and stud bolt mounting provide reliable electrical and mechanical attachment for industrial assemblies.
• Regulatory Compliance: RoHS compliance supports deployment in environments requiring restricted‑substance conformance.

Why Choose LNU2W472MTEG?

The LNU2W472MTEG combines high capacitance and high voltage in a screw‑terminal aluminum electrolytic package tailored for industrial inverter and motor‑drive environments. Its high ripple current capability, extended high‑temperature life and validated charge‑discharge endurance make it well suited for engineers designing robust DC link, regenerative and power smoothing systems.

This part is ideal for designs that require reliable high‑voltage energy storage with proven insulation and leakage characteristics, and for teams seeking a component specified to perform under continuous ripple and thermal stress over extended periods.

Request a quote or contact sales to discuss availability, lead times, and how LNU2W472MTEG can be specified into your next inverter or motor‑drive design.