LNUN7332MSEHBN

The LNUN7332MSEHBN from Nichicon is a screw-terminal aluminum electrolytic capacitor in the LNU series designed for high-voltage industrial power applications. It provides 3300 µF capacitance at a rated voltage of DC 525 V and is built for demanding thermal and ripple environments with an operating range of −40°C to +105°C.

Engineered for inverter circuitry and regenerative drives, this radial can with screw terminals delivers high ripple handling and a long endurance rating (5000 hours at 105°C) for robust performance in power conversion and motor-drive systems.

Key Features

• Capacitance & Voltage: 3.3 mF (3300 µF) nominal capacitance rated to DC 525 V for high-voltage energy storage and smoothing in power stages.
• High Ripple Current Capability: Handles 12.1 A at 120 Hz (low frequency) and 16.94 A at 10 kHz (high frequency), supporting heavy ripple loading and high-frequency regenerative currents.
• Endurance at Elevated Temperature: Rated for 5000 hours at 105°C under specified ripple and bias conditions, enabling sustained operation in hot industrial environments.
• Wide Operating Temperature Range: Specified operation from −40°C to +105°C to accommodate broad ambient conditions found in industrial equipment.
• Screw Terminal Mounting: Radial can with screw terminals for secure, low-resistance electrical connections and reliable mechanical mounting.
• Leakage Current: Specified leakage current of 3940 µA (measured conditions per datasheet), consistent with high-voltage electrolytic performance requirements.
• Compact High-Voltage Package: φ76.2 × 140 mm can size (L: 14 cm × D: 7.62 cm) delivering high voltage capability in a compact form factor for the class.
• RoHS Compliant: Conforms to RoHS directives, supporting regulatory requirements for industrial equipment.

Typical Applications

• Industrial Inverters: Energy storage and smoothing in inverter circuitry for industrial power supplies where high-voltage DC bus capacitors are required.
• Regenerative Drives / AC Servomotors: Suited for high-frequency regenerative voltage handling in servo and motor drive systems that require reliable charge-discharge performance.
• High-Speed Charge–Discharge Systems: Designed to cope with rapid charge–discharge loading for applications that demand frequent or fast transient energy delivery.
• Power Conversion & Filtering: Bulk smoothing and ripple attenuation in DC–DC/AC–DC converters and other power conditioning circuits.

Unique Advantages

• High Voltage in a Compact Can: 525 V rating in a φ76.2 × 140 mm package provides high-voltage capability without excessive footprint for industrial power designs.
• Robust Ripple Handling: Dual ripple current ratings (120 Hz and 10 kHz) support both low-frequency smoothing and high-frequency regenerative currents, improving system stability under dynamic loads.
• Designed for Harsh Thermal Environments: 5000-hour endurance at 105°C ensures longevity under continuous high-temperature operation common in power electronics.
• Secure Screw-Terminal Connections: Screw terminals reduce connection resistance and enhance mechanical reliability in heavy-current applications.
• Engineered for Fast Charge–Discharge: Specified performance under high-speed charge–discharge cycles makes it suitable for systems with frequent energy transfers.
• Regulatory Compliance: RoHS-compliant construction supports deployment in regions requiring restricted-substance compliance.

Why Choose LNUN7332MSEHBN?

LNUN7332MSEHBN combines high-voltage capability (525 V) with substantial capacitance (3300 µF) and strong ripple-current ratings to address demanding power-electronics roles such as inverter DC buses and regenerative drive storage. Its 5000-hour life at 105°C and −40°C to +105°C operating range make it a practical choice for industrial environments where thermal endurance and reliability are essential.

This screw-terminal radial can is aimed at designers and procurement teams specifying capacitors for high-voltage power conversion, motor control, and regenerative applications that require secure connections, predictable leakage performance, and RoHS compliance.

If you need pricing, availability, or a formal quotation for LNUN7332MSEHBN, request a quote or contact the sales team to discuss lead times and volume options.