LNU2W103MSEJBB

The LNU2W103MSEJBB is a screw-terminal aluminum electrolytic capacitor from Nichicon's LNU series, designed for high-voltage industrial power applications. It delivers 10 mF capacitance at a 450 V DC rating in a compact, radial can with screw terminals, optimized for inverter circuitry, high-frequency regenerative voltages and high-speed charge–discharge loading.

Engineered for elevated operating temperatures and long service life, the part supports continuous operation up to 105°C with a specified load life of 5000 hours under rated ripple conditions, and it is RoHS compliant.

Key Features

• High Voltage Power — Rated at 450 V DC, suitable for high-voltage industrial power supplies and inverter systems; series rated up to 525 V per datasheet series specifications.
• Large Capacitance — 10 mF nominal capacitance with ±20% tolerance (120 Hz, 20°C) for energy storage and smoothing in power circuits.
• High Ripple Current Capability — Supports 27.3 A at 120 Hz and 38.22 A at 10 kHz, enabling handling of significant AC ripple and high-frequency regenerative currents.
• Thermal and Lifetime Performance — Operating range −40°C to +105°C with a load-life rating of 5000 hours at 105°C when subjected to rated ripple; designed for sustained high-temperature operation.
• Screw Terminal Mounting — Radial can with screw terminals for secure, low-impedance connections in industrial power assemblies.
• Mechanical Size — Compact footprint with dimensions L: 16.5 cm × D: 9 cm and a maximum seated height of 6.496 in, enabling denser power module layouts compared to larger alternatives in the family.
• Reliability and Safety — Polarized construction for proper DC operation; series-level endurance and electrical robustness include insulation resistance and voltage proof criteria defined in the datasheet.
• Regulatory — Compliant to the RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

• Industrial Inverters — Energy storage and smoothing for inverter front-ends and DC bus buffering in industrial motor drives and inverter power supplies.
• Regenerative Motor Drives — Handling high-frequency regenerative voltages for AC servomotors and servo amplifiers where rapid charge–discharge cycles occur.
• Power Supply Filtering — Bulk capacitance and ripple attenuation in high-voltage power supplies used in factory automation and industrial control systems.
• High-Speed Charge–Discharge Circuits — Applications requiring frequent or rapid charge–discharge events, supported by the capacitor’s endurance characteristics at rated conditions.

Unique Advantages

• High-voltage capability: 450 V DC rating provides headroom for industrial power designs and is part of a series rated up to 525 V.
• Compact footprint for high energy: 10 mF in a smaller-sized can enables higher energy density and denser board or module layouts compared with larger family members.
• Robust ripple handling: High allowable ripple currents at both low and high frequencies reduce thermal stress and improve performance in regenerative and inverter circuits.
• Long high-temperature life: 5000-hour load life at 105°C supports designs expected to operate in elevated-temperature industrial environments.
• Secure connections: Screw-terminal construction yields reliable mechanical and electrical connections for field wiring and high-current terminations.
• RoHS compliance: Aligns with common environmental requirements for electronics used in commercial and industrial systems.

Why Choose LNU2W103MSEJBB?

The LNU2W103MSEJBB balances high-voltage capability, large capacitance and a compact screw-terminal form factor to meet the demands of industrial inverter and regenerative-drive applications. Its rated performance at 105°C and defined ripple current ratings make it suitable for robust power systems that require sustained high-temperature operation and frequent charge–discharge cycles.

This part is well suited for electrical engineers and procurement teams designing or specifying industrial power supplies, motor drives and inverter systems where reliable bulk capacitance, secure terminal connections and RoHS compliance are required.

Request a quote or submit a product inquiry today to confirm availability, lead times and to discuss how LNU2W103MSEJBB fits your power design requirements.