LNUN7332MSEH

The LNUN7332MSEH from Nichicon is a high-voltage, screw-terminal aluminum electrolytic capacitor designed for industrial power applications. With a rated capacitance of 3.3 mF and a maximum DC rating of 525 V, it addresses energy storage and smoothing needs in inverter and regenerative power circuits.

Engineered for demanding environments, this screw-terminal type capacitor is optimized for high-frequency regenerative voltage and fast charge–discharge loading, making it well suited to industrial power supplies, AC servomotor drives, and general inverter systems.

Key Features

• High Voltage Rating — Rated up to DC 525 V to support high-voltage inverter and regenerative applications.
• Large Capacitance — 3.3 mF (3300 µF) provides substantial energy storage for smoothing and buffering in power systems.
• Screw Terminal Package — Robust radial can with screw terminals for secure, low-impedance connections in heavy-current installations.
• High-Frequency Performance — Ripple current capabilities of 12.1 A at 120 Hz and 16.94 A at 10 kHz support both low- and high-frequency ripple conditions.
• Thermal and Life Performance — Rated for operation from −40°C to +105°C with a specified load life of 5000 hours at 105°C under rated ripple conditions.
• Polarized Electrolytic — Polarized design per the LNU series specifications for correct-oriented DC power applications.
• RoHS Compliant — Conforms to RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

• Industrial Power Supplies — Energy buffering and smoothing in inverter power supplies and large industrial converters.
• AC Servomotor Regeneration — Handles high-frequency regenerative voltage in motor drive circuits to manage returned energy.
• General Inverter Systems — Supports rapid charge–discharge cycles and high ripple currents typical of inverter topologies.
• High-Frequency Power Electronics — Suited for circuits requiring reliable high-frequency ripple handling at elevated ambient temperatures.

Unique Advantages

• High Voltage and Compact Design: Rated to 525 V while offering a form factor smaller than the LNT series, enabling space-efficient high-voltage designs.
• Robust Ripple Handling: Specified ripple currents (12.1 A at 120 Hz, 16.94 A at 10 kHz) support both mains-frequency smoothing and high-frequency switching environments.
• Long-Term Reliability at Elevated Temperature: 5000-hour load life at 105°C under rated ripple current provides predictable long-term behavior in hot operating conditions.
• Secure Screw-Terminal Connectivity: Radial can with screw terminals simplifies integration into power racks and enables solid electrical and mechanical connections for high-current loops.
• Wide Operating Temperature Range: −40°C to +105°C supports a broad range of industrial ambient conditions.
• Regulatory Compliance: RoHS conformity aids integration into equipment that must meet restricted-substance requirements.

Why Choose LNUN7332MSEH?

The LNUN7332MSEH combines high-voltage capability, substantial capacitance, and robust ripple-current performance in a screw-terminal aluminum electrolytic package tailored for industrial power electronics. Its specification set — including a 525 V rating, 3.3 mF capacitance, high ripple-current tolerance, and a 5000-hour life at 105°C — positions it for demanding inverter, regenerative, and motor-drive applications where reliable energy storage and fast charge–discharge behavior are required.

This capacitor is aimed at engineers and procurement teams designing industrial inverters, servomotor drives, and power-supply systems who need a proven, RoHS-compliant component from a recognized manufacturer for long-term, high-temperature operation.

Request a quote or contact sales to discuss availability, lead times, and volume pricing for LNUN7332MSEH and to get technical details for integrating this capacitor into your design.