LNUN7472MTEJ

The LNUN7472MTEJ is a Nichicon LNU-series aluminum electrolytic capacitor in a screw-terminal, radial can package designed for industrial power electronics. It delivers 4.7 mF capacitance at a rated DC voltage of 525 V and is intended for applications that require high-voltage energy handling, frequent charge–discharge cycling and reliable operation at elevated temperatures.

Built for inverter and regenerative circuits, the part supports high-frequency ripple loading and long-term operation with a rated lifespan of 5000 hours at 105°C, making it suitable for industrial power supplies, AC servomotor regenerative circuits and general inverter systems.

Key Features

• High voltage rating — Rated up to DC 525 V, enabling use in high-voltage inverter and industrial power-supply topologies.
• Large capacitance — 4.7 mF (4,700 μF) capacitance with ±20% tolerance for energy storage and smoothing in DC bus and regenerative circuits.
• High ripple-current capability — Handles 15.2 A at 120 Hz and 21.28 A at 10 kHz, supporting both low- and high-frequency ripple conditions.
• Elevated temperature endurance — Specified for operation from –40°C to +105°C with a load life of 5000 hours at 105°C under rated ripple conditions.
• Robust mounting — Stud bolt mount with screw terminals provides secure mechanical and electrical connections for industrial installations.
• Polarized radial can package — Radial, can-type construction with screw terminals for reliable DC energy storage and easy installation in power racks.
• RoHS compliant — Meets RoHS directive (2011/65/EU, (EU)2015/863) requirements for restricted substances.

Typical Applications

• Industrial inverter power supplies — DC bus smoothing and energy buffering in inverter front-ends where high voltage and sustained ripple handling are required.
• AC servomotor regenerative circuits — Absorbing and supplying regenerative energy in motor drives and supporting high-frequency charge–discharge cycles.
• General inverter systems — Bulk capacitance for energy storage, transient suppression and voltage stabilization in inverter applications.

Unique Advantages

• High-voltage capability: DC 525 V rating enables use in higher-voltage power designs without the need for series stacking of capacitors.
• Compact energy density: 4.7 mF capacitance in a screw-terminal radial can provides substantial energy storage in a form factor suited to industrial assemblies.
• Designed for ripple and frequency diversity: Specified ripple-current values at both 120 Hz and 10 kHz accommodate typical mains-frequency and high-frequency inverter conditions.
• Long elevated-temperature life: 5000-hour load life at 105°C supports reliability in high-heat, continuously operating industrial environments.
• Secure electrical/mechanical connection: Stud bolt mount and screw terminals simplify installation and ensure robust connections under vibration and thermal cycling.
• Regulatory compliance: RoHS conformity supports use in designs targeting global markets with restricted-substance requirements.

Why Choose LNUN7472MTEJ?

LNUN7472MTEJ balances high-voltage capability, substantial capacitance and high ripple-current handling in a stud-mounted, screw-terminal format suited to industrial power electronics. Its specified endurance at 105°C and polarized radial-can construction make it appropriate for inverter, regenerative and other DC energy-storage roles where reliability and continuous operation are critical.

This part is a practical choice for engineers and procurement teams designing industrial inverters, motor-drive regenerative systems and power supplies that require verified high-voltage operation, long-term thermal endurance and robust mechanical mounting.

Request a quote or contact sales for pricing, lead time and availability for LNUN7472MTEJ to discuss how it fits your power-electronics design requirements.