LNUN7472MSEJBN

The LNUN7472MSEJBN is a screw-terminal aluminum electrolytic capacitor designed for high-voltage industrial power electronics. It combines a DC 525 V rating with a compact LNU-series form factor and is built for inverter and regenerative power applications where high ripple handling and charge–discharge endurance are required.

Optimized for inverter circuitry, AC servomotor regenerative circuits and general industrial power supplies, this capacitor delivers extended high-temperature life and robust ripple performance to support demanding power-conversion environments.

Key Features

• High rated voltage — Rated up to DC 525 V for use in high-voltage sections of industrial power supplies and inverters.
• Capacitance and tolerance — 4.7 mF nominal capacitance with ±20% tolerance, suitable for energy buffering and smoothing in power stages.
• Screw terminal mounting — Radial can with screw terminals provides secure, low-impedance connections for heavy current paths in power assemblies.
• High-temperature endurance — Specified operating range of –40°C to +105°C with a rated load life of 5000 hours at 105°C under applied ripple current.
• High ripple-current capability — 15.2 A at 120 Hz and 21.28 A at 10 kHz, enabling reliable operation under significant AC ripple in switching and regenerative circuits.
• Charge–discharge durability — Designed to withstand high-speed charge–discharge loading and verified for endurance after 50 million charge–discharge cycles per datasheet criteria.
• Compact, high-voltage LNU package — Smaller-sized LNU-series construction compared to LNT-series, offering space-efficient high-voltage energy storage (package dimensions: L: 13.5 × D: 9 cm).
• Polarized, industrial-grade construction — Polarized aluminum electrolytic design intended for general-purpose industrial use; RoHS compliant.

Typical Applications

• Industrial inverters and power supplies — Energy buffering and smoothing in inverter DC-link and industrial power-supply sections where DC525 V capability is required.
• AC servomotor regenerative circuits — Handles high-frequency regenerative voltage and supports energy recovery in motor-drive systems.
• High-frequency switching stages — Supports high ripple currents at 10 kHz and above for switching power converters and regenerative modules.
• Charge–discharge buffering — Robust behavior under rapid charge–discharge cycles for applications that demand frequent energy transfer and cycling.

Unique Advantages

• High-voltage handling: DC 525 V rating lets designers implement higher-voltage DC-link and inverter topologies without up-rating multiple lower-voltage capacitors.
• Long-term high-temperature reliability: 5000-hour load life at 105°C under ripple current reduces maintenance and replacement frequency in hot industrial environments.
• Strong ripple performance: High ripple-current ratings at both 120 Hz and 10 kHz enable operation across a range of switching frequencies with controlled heating.
• Durable charge–discharge endurance: Validated for 50 million charge–discharge cycles, supporting applications with frequent energy transfer and regenerative events.
• Robust screw-terminal connection: Screw terminals provide secure, low-impedance mounting for heavy-current power paths and simplified installation in power racks.
• Space-efficient high-voltage package: LNU-series smaller footprint compared to LNT-series helps reduce overall system volume while maintaining required high-voltage performance.

Why Choose LNUN7472MSEJBN?

The LNUN7472MSEJBN delivers a combination of high-voltage rating, elevated temperature endurance and strong ripple-current capability tailored for industrial inverter, motor-drive and regenerative power applications. Its screw-terminal construction and compact LNU-series packaging make it practical to integrate into power-conversion modules where reliable high-voltage energy storage is required.

This part is suited for designers and engineers building robust industrial power systems that demand extended life at elevated temperatures, secure terminal connections, and proven charge–discharge resilience. Backed by Nichicon's LNU-series specifications and RoHS compliance, it provides a durable component choice for long-term power-electronics deployments.

Request a quote or submit a parts inquiry to discuss availability and volume pricing for LNUN7472MSEJBN and to align terminal and mounting options with your design requirements.