LNUN7472MTEH

The LNUN7472MTEH is a screw‑terminal, aluminum electrolytic capacitor in Nichicon's LNU series designed for high‑voltage industrial power applications. It combines a 4.7 mF capacitance with a rated voltage of DC 525 V and a robust operating temperature range of −40°C to 105°C.

Engineered for inverter and regenerative circuits, this stud‑mount radial can delivers high ripple‑current capability and a long load life (5,000 hours at 105°C), making it suitable for demanding motor‑drive and industrial power‑supply environments that require high‑speed charge/discharge handling.

Key Features

• High Voltage Capability — Rated up to DC 525 V to support high‑voltage inverter and regenerative circuits.
• Capacitance & Tolerance — 4.7 mF capacitance with ±20% tolerance (measurement at 120 Hz, 20°C) for bulk energy storage and smoothing.
• High Temperature Operation — Rated for operation from −40°C to 105°C with a guaranteed load life of 5,000 hours at 105°C under rated ripple conditions.
• Ripple Current Performance — Capable of 15.2 A at 120 Hz and 21.28 A at 10 kHz, supporting both low‑ and high‑frequency ripple environments.
• Robust Mounting & Termination — Stud bolt mount with screw terminal (radial, can – screw terminals) provides a secure, low‑impedance connection for high‑current applications.
• Leakage & Insulation Characteristics — Leakage current after 5 minutes is ≤ 3√CV (µA) or 5 mA (whichever is smaller) at 20°C; insulation resistance exceeds 100 MΩ at DC 500 V between terminal and bracket.
• Series Reliability Tests — LNU series endurance validated for charge/discharge behavior through extensive cycling and high‑temperature load life per series datasheet.
• RoHS Compliant — Conforms to the RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

• Industrial Inverters — Bulk energy storage and smoothing for inverter power stages where high DC bus voltages and sustained ripple are present.
• AC Servomotor Regeneration — Handles high‑frequency regenerative voltages and fast charge/discharge cycles in motor‑drive regenerative circuits.
• Industrial Power Supplies — Energy buffering and transient suppression in high‑voltage, high‑temperature power supplies used in factory automation and drives.
• High‑Speed Charge/Discharge Loads — Suited for circuits that require rapid energy transfer and repeated charge/discharge endurance.

Unique Advantages

• High‑Voltage in a Compact LNU Package: Delivers up to 525 V rating while being smaller than comparable LNT series parts, enabling denser board or chassis layouts.
• Designed for High Ripple and Frequency: Specified ripple current at both 120 Hz and 10 kHz supports designs that operate across low and high ripple frequency ranges.
• Long High‑Temperature Service Life: 5,000 hours rated life at 105°C provides predictable performance for high‑temperature industrial environments.
• Secure Screw‑Terminal Mounting: Stud bolt mount with screw terminals enables robust mechanical and electrical connections for high‑current applications.
• Proven Endurance Characteristics: Series‑level endurance testing includes extensive charge/discharge cycling to validate performance under repeated stress.
• Regulatory Compliance: RoHS compliance supports deployments where restricted‑substance conformity is required.

Why Choose LNUN7472MTEH?

LNUN7472MTEH is positioned for engineers who need a high‑voltage, high‑temperature aluminum electrolytic capacitor with strong ripple‑current capability and proven endurance for inverter, motor‑drive, and industrial power‑supply applications. Its screw‑terminal, stud‑mount construction and series‑tested life characteristics make it a practical choice when reliability and secure connections matter.

With explicit specifications for voltage (DC 525 V), capacitance (4.7 mF), operating temperature (−40°C to 105°C), and ripple current at multiple frequencies, LNUN7472MTEH provides verifiable performance metrics to support design validation and long‑term deployment in demanding industrial systems.

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