LNC2W392MSEG

The LNC2W392MSEG is a screw-terminal aluminum electrolytic capacitor in Nichicon’s LNC series, designed for industrial power electronics. It delivers 3.9 mF capacitance at a 450 V rating in a compact radial can with screw terminals, targeting inverter and regenerative power applications that require high ripple handling and robust charge–discharge endurance.

Engineered for heavy-duty cycling and high-frequency regenerative voltages, this capacitor combines a smaller physical footprint with elevated ripple current capability and a rated load life of 5000 hours at 85°C.

Key Features

• Capacitance & Voltage — 3.9 mF (3,900 µF) rated at 450 V DC, suited for high-voltage energy storage in industrial supplies.
• Screw-Terminal Radial Can — Screw terminal mounting and radial can package simplify installation in power modules and racks.
• High Ripple Current — Rated ripple current of 17.3 A at 120 Hz and 24.22 A at 100 kHz, supporting heavy AC loading and high-frequency switching environments.
• Temperature and Lifetime — Operates from –40°C to +85°C with a specified load life of 5000 hours at 85°C under applied ripple current.
• Compact Dimensions — Physical size L: 13.5 × D: 6.35 cm, offering a smaller footprint compared with some series alternatives.
• Leakage Current Spec — After 5 minutes at rated voltage, leakage current is ≤ 3√V (µA) or 5 mA, whichever is smaller (measured at 20°C).
• Durable Charge–Discharge Endurance — Series-level endurance includes qualification under 50 million charge–discharge cycles (ΔV = rated × 0.3, 3 Hz), reflecting design focus on frequent cycling.
• RoHS Compliance — Conforms to the RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

• Industrial Inverters — Energy smoothing and DC-link support in inverter power supplies for motors and drives.
• AC Servomotor Regeneration — Handling high-frequency regenerative voltages and rapid charge–discharge cycles in servo drives.
• General Power Supplies — Bulk energy storage and ripple absorption in industrial-grade power modules and converters.

Unique Advantages

• High ripple capability: Measurable ripple current ratings at 120 Hz and 100 kHz reduce thermal stress in high-switching applications.
• Smaller physical footprint: Compact L and D dimensions provide space-saving integration compared with larger series options.
• Long rated load life: 5000 hours at 85°C under ripple current extends maintenance intervals in continuous-duty installations.
• Designed for frequent cycling: Series endurance testing for millions of charge–discharge cycles supports high-speed charge/discharge demands.
• Screw-terminal robustness: Screw-terminal connections enable secure mounting and reliable current pathing for high-power systems.
• Regulatory compliance: RoHS conformity supports use in markets with restricted substance requirements.

Why Choose LNC2W392MSEG?

The LNC2W392MSEG positions itself as a practical solution for engineers building inverter drives, regenerative servo systems, and industrial power supplies that demand high ripple handling in a compact, screw-terminal package. Its 450 V rating, substantial capacitance, and measured ripple current specifications make it suitable where sustained high-frequency loading and robust charge–discharge behavior are required.

Backed by Nichicon’s LNC series design and validated endurance and leakage specifications, this capacitor is aimed at applications where predictable lifetime under ripple load and secure terminal connections contribute to system reliability and easier integration into power assemblies.

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