LNC2W392MSEH

The LNC2W392MSEH is an aluminum electrolytic capacitor in a screw-terminal radial can designed for high-ripple, high-voltage power-electronics applications. It provides 3.9 mF of capacitance at 450 V with a rated operating temperature range of –40 °C to +85 °C.

Engineered for industrial power supplies and inverter circuitry, this smaller-sized screw-terminal unit offers extended load life under ripple conditions and is suitable for high-frequency regenerative voltage and high-speed charge-discharge loading scenarios.

Key Features

• Capacitance & Rated Voltage — 3.9 mF (3900 µF) nominal capacitance, rated at 450 V DC with ±20% tolerance.
• Screw Terminal Package — Radial can with screw terminals for secure power connections and mechanical robustness.
• Compact Dimensions — Physical size L: 9 cm × D: 7.62 cm; designed to be smaller than comparable LNX/LNK series units while maintaining performance.
• Operating Temperature & Lifetime — Rated for –40 °C to +85 °C with a load life of 5000 hours at 85 °C under rated ripple current conditions.
• High Ripple Current Capability — 17 A at 120 Hz and 23.8 A at 100 kHz to handle demanding AC ripple and fast charge-discharge cycles.
• Endurance & Charge-Discharge Robustness — Meets endurance criteria after 5000 hours at 85 °C; qualified for 50 million charge-discharge cycles (ΔV = rated × 0.3, 3 Hz) at room temperature.
• Electrical Reliability — Leakage current after 5 minutes' rated-voltage application is limited to ≤ 3√(V) μA or 5 mA (whichever is smaller); insulation resistance >100 MΩ at DC 500 V; voltage proof AC 2500 V for 1 minute between terminal and bracket.
• Polarized & RoHS Compliant — Polarized electrolytic design and compliant with RoHS (2011/65/EU, (EU)2015/863).

Typical Applications

• Industrial Power Supplies — Bulk and smoothing capacitance in inverter and industrial PSU designs where high ripple handling and long life are required.
• Inverter & Motor Drive Circuits — Energy storage for inverter stages and regenerative circuits in AC servomotor and drive systems.
• High-Frequency Regenerative Systems — Suitable for applications with high-frequency regenerative voltages and rapid charge-discharge cycles.
• General Purpose Power Electronics — Use where a robust, high-voltage polarized capacitor with screw-terminal mounting is required.

Unique Advantages

• High ripple-current tolerance: Rated ripple current of 17 A (120 Hz) and 23.8 A (100 kHz) supports heavy AC ripple and fast dynamic loading without premature degradation.
• Smaller footprint for power-class performance: Designed to be smaller than comparable LNX/LNK series parts while delivering comparable ripple and lifetime characteristics.
• Proven endurance under load: 5000-hour load life at 85 °C under rated ripple current, providing predictable performance in sustained high-temperature operation.
• Charge-discharge durability: Qualified for 50 million charge-discharge cycles at specified conditions, useful where frequent energy cycling occurs.
• Robust electrical isolation: High insulation resistance and AC voltage-proof rating between terminal and bracket enhance system safety and reliability.
• Regulatory compliance: RoHS compliant for use in regions requiring restricted substances conformity.

Why Choose LNC2W392MSEH?

The LNC2W392MSEH is positioned for engineers designing power-electronics systems that demand high-voltage capacitance, strong ripple-current capability, and long operational life in a screw-terminal package. Its combination of 3.9 mF at 450 V, proven endurance under ripple loading, and compact dimensions make it suitable for inverter circuitry, regenerative drives, and industrial power supplies.

Choose this part when you need a polarized aluminum electrolytic capacitor with documented leakage, insulation, and voltage-proof characteristics, plus charge-discharge endurance and RoHS compliance for reliable, long-term operation in demanding electrical environments.

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