LNU2G472MSEG

The LNU2G472MSEG is a screw‑terminal aluminum electrolytic capacitor in Nichicon’s LNU series, designed for high‑voltage DC bus and inverter applications. With a 4,700 µF capacitance at a 400 V rating, a compact screw‑terminal can package, and a 105 °C endurance rating, it targets industrial power supplies, inverter circuitry and regenerative power systems that require robust energy storage and high ripple handling.

Built for mass production and RoHS compliance, this part combines high voltage capability with a form factor optimized for screw‑terminal mounting and high ripple current environments.

Key Features

• Electrical Capacity — 4,700 µF (4.7 mF) nominal capacitance with ±20% tolerance (120 Hz, 20 °C), suitable for DC link and bulk energy storage.
• High Voltage Rating — Rated at 400 V DC to support inverter and high‑voltage power supply rails.
• High Temperature Endurance — Rated operating temperature range −40 °C to +105 °C with a load life of 5,000 hours at 105 °C under rated ripple conditions.
• Ripple Current Handling — Rated ripple current of 16.1 A at 120 Hz and 22.54 A at 10 kHz to support high‑frequency switching and regenerative loads.
• Low Loss Characteristic — Specified tan δ (DF) of 0.2, enabling predictable dissipation behavior in power applications.
• Robust Leakage Performance — Leakage current after 5 minutes is limited to 3√(C·V) µA or 5 mA, whichever is smaller (per datasheet conditions).
• Mechanical / Mounting — Screw terminal radial can package with nominal bolt diameter M5 and a compact footprint: diameter 63.5 mm × length 120 mm (φ63.5 × 120L).
• Compliance — RoHS‑compliant construction for environmental regulatory requirements.

Typical Applications

• Industrial Inverters — DC link and smoothing capacitor for inverter circuitry where 400 V DC bus support and high ripple handling are required.
• AC Servomotor Regeneration — Energy buffering for high‑frequency regenerative voltage in servomotor drives and regenerative braking systems.
• Power Supplies — Bulk energy storage and surge support in high‑voltage industrial power supplies and converter stages.
• High‑Frequency Switching Systems — Suitable for charge–discharge and high‑speed switching environments due to its specified ripple performance and endurance.

Unique Advantages

• High‑Voltage Capability: 400 V rating enables use on elevated DC bus rails common to industrial power and drive designs.
• Designed for High Ripple Loads: Specified ripple currents at both 120 Hz and 10 kHz provide predictable thermal and performance behavior in switching and regenerative systems.
• Long Life at Elevated Temperature: 5,000‑hour endurance at 105 °C under rated conditions supports sustained operation in hot industrial environments.
• Compact Screw‑Terminal Form Factor: Radial can with M5 screw terminals offers secure mechanical mounting and simplified bus connections for high current paths.
• Controlled Dissipation and Leakage: Specified tan δ (DF) and leakage current limits enable predictable loss and self‑discharge characteristics for system design and thermal budgeting.
• Regulatory Compliance: RoHS compliance aligns with environmental and production requirements for commercial and industrial equipment.

Why Choose LNU2G472MSEG?

LNU2G472MSEG is positioned for designers who need a high‑voltage, high‑ripple aluminum electrolytic capacitor with extended endurance at elevated temperatures. Its combination of 4,700 µF capacitance, 400 V rating, and specified ripple performance makes it suitable for DC link, inverter, and regenerative power systems where predictable electrical and thermal behavior matters.

Available in a screw‑terminal radial can with a compact footprint and RoHS compliance, this part supports production scaling and long‑term reliability requirements in industrial power electronics applications.

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