LNU2H332MSEH

The LNU2H332MSEH from Nichicon is a screw-terminal aluminum electrolytic capacitor providing 3300 µF (3.3 mF) bulk capacitance at a 500 V DC rating. It is engineered for industrial high-voltage power applications where durable DC-link capacitance and robust ripple handling are required.

Designed for inverter circuitry and regenerative motor drives, this radial can capacitor delivers high ripple-current capability, long high-temperature endurance, and secure screw-terminal connections for reliable installation in industrial power supplies and drive systems.

Key Features

• Capacitance & Voltage: 3300 µF (3.3 mF) rated at 500 V DC with capacitance tolerance ±20% (120 Hz, 20°C).
• High-temperature Endurance: Rated for operation up to 105°C with a load life of 5000 hours when rated ripple current is applied at 105°C.
• High Ripple Current Handling: Specified ripple current of 10.9 A at 120 Hz and 15.26 A at 100 kHz to support both low- and high-frequency power conditions.
• Screw Terminal Package: Radial can with screw terminals for robust, low-impedance power connections and secure mounting.
• Wide Operating Range: Operating temperature range –40°C to +105°C for industrial environments.
• Leakage Current Specification: After 5 minutes at rated voltage, leakage ≤ 3√CV (µA) or 5 mA, whichever is smaller (at 20°C).
• Insulation & Voltage Proof: Insulation resistance greater than 100 MΩ at DC 500 V between terminal and bracket; no abnormality at AC 2500 V for 1 minute between terminal and bracket.
• Polarity & Construction: Polarized aluminum electrolytic design suited for DC-link applications.
• Regulatory Compliance: RoHS compliant (2011/65/EU, (EU)2015/863).

Typical Applications

• Industrial Inverters: DC-link and smoothing in inverter power supplies for motor drives and industrial converters.
• Regenerative Drives (AC Servomotors): Handles high-frequency regenerative voltages and charge–discharge loads in servo and motion-control systems.
• High-Voltage Power Supplies: Bulk capacitance for industrial high-voltage rails; series rated up to DC 525 V supports a broad range of high-voltage designs.

Unique Advantages

• High-voltage capability: 500 V rating (series up to 525 V) enables use in demanding DC-link and high-voltage power circuits.
• Designed for high-frequency operation: Measured ripple current at both 120 Hz and 100 kHz provides predictable performance in switching and regenerative environments.
• Long life at elevated temperature: 5000-hour load life at 105°C supports continuous high-temperature operation and predictable aging.
• Secure power termination: Screw terminals provide low-impedance, reliable connections well suited to industrial assemblies and field servicing.
• Clear leakage and insulation specs: Defined leakage current limits and insulation resistance improve system-level safety verification and diagnostics.
• RoHS compliance: Conforms to RoHS directive for restricted substances, aiding regulatory alignment in equipment manufacturing.

Why Choose LNU2H332MSEH?

The Nichicon LNU2H332MSEH combines substantial bulk capacitance with a high 500 V rating, high ripple-current capability, and tested endurance at 105°C to meet the demands of industrial inverter and regenerative-drive applications. Its screw-terminal, radial-can construction simplifies integration into power assemblies where secure mechanical and electrical connections are essential.

This capacitor is a practical choice for engineers specifying reliable DC-link capacitance in industrial power supplies, motor drives, and high-voltage power systems—offering measurable electrical characteristics, robust thermal endurance, and RoHS compliance to support long-term deployment and regulatory needs.

Request a quote or submit an inquiry for pricing, availability, and technical details for the LNU2H332MSEH.