LNU2W332MSEGBN

The LNU2W332MSEGBN is a screw-terminal aluminum electrolytic capacitor from Nichicon’s LNU series, rated at 450 V DC and 3300 µF. It is a high-voltage, smaller-sized polarized can-type capacitor designed for industrial power electronics where high ripple handling and long-term thermal endurance are required.

Typical market segments include industrial power supplies and inverter circuitry — applications that demand robust DC link and regenerative voltage performance. Key value propositions are high voltage rating, high ripple-current capability, and a 5000-hour load life at 105°C.

Key Features

• Capacitance & Voltage: 3300 µF nominal capacitance with a 450 V rated voltage; capacitance tolerance ±20% (120 Hz, 20°C).
• Mounting & Package: Screw terminal mounting in a radial can package (can with screw terminals) for secure, high-current connections and straightforward installation.
• High Ripple Current: Supports 15 A at 120 Hz (low frequency) and 21 A at 10 kHz (high frequency), enabling use in demanding inverter and power-supply environments.
• Thermal Endurance: Rated operating temperature range –40°C to +105°C with a specified load life of 5000 hours at 105°C under rated ripple conditions.
• Leakage & Dissipation: Specified leakage current of 3650 µA and tangent of loss angle (tan δ) of 0.2, suitable for high-voltage power applications requiring controlled leakage and loss characteristics.
• Physical Dimensions: Compact footprint with a diameter of 63.5 mm and length of 120 mm (L: 12.0 cm × D: 6.35 cm) for a balance of capacitance and size.
• Compliance: RoHS compliant, adhering to the directive cited in the product datasheet.

Typical Applications

• Industrial Drives & Inverters: DC-link and regenerative-voltage smoothing for AC servomotor drives and general inverter circuitry, leveraging high ripple capability and high-voltage rating.
• Power Supplies: High-voltage industrial power-supply filtering where long life at elevated temperatures (5000 h at 105°C) is required.
• High-Speed Charge–Discharge Systems: Circuits requiring reliable performance under frequent charge/discharge cycles, supported by series-specified charge–discharge endurance.

Unique Advantages

• High-Voltage Capability: 450 V rating (series supports up to DC 525 V) enables use in higher-voltage DC-link and inverter designs.
• Compact High-Voltage Design: Described as “High Voltage, Smaller Sized” relative to earlier series, providing space savings in rack- and chassis-mounted power electronics.
• Superior Ripple Handling: 15 A (120 Hz) and 21 A (10 kHz) ripple ratings reduce the need for parallel devices and simplify thermal management.
• Proven Thermal Endurance: 5000-hour load life at 105°C supports reliability in continuous high-temperature operation.
• Screw-Terminal Power Connections: Robust screw terminals facilitate low-impedance, high-current connections for DC bus and power applications.
• Measured Loss and Leakage Control: Specified tan δ (0.2) and defined leakage current provide predictable behavior for precision power designs.

Why Choose LNU2W332MSEGBN?

The LNU2W332MSEGBN combines high-voltage capability, substantial ripple-current ratings, and extended thermal endurance in a compact screw-terminal can. It is positioned for designs that require durable DC-link capacitors in industrial inverters, motor drives, and high-frequency regenerative circuits where reliable performance at up to 105°C is essential.

Engineers specifying this part will find a clear trade-off between size, capacitance, and high-voltage performance, backed by Nichicon’s LNU series specifications for endurance, leakage control, and high-frequency behavior. The capacitor suits applications that prioritize robust long-term operation and stable electrical characteristics under load.

Request a quote or submit a sales inquiry to evaluate LNU2W332MSEGBN for your next power electronics design and to receive availability and lead-time information.