LNC2G183MSEJBN

The LNC2G183MSEJBN from Nichicon is a screw-terminal aluminum electrolytic capacitor designed for industrial power electronics. It delivers 18 mF capacitance at a 400 V rated voltage in a radial can with screw terminals, optimized for inverter and regenerative power circuitry.

Key advantages include a compact, smaller-sized profile with high ripple-current capability and a 5000-hour load life at 85°C, making it suitable for inverter power supplies, AC servomotor regenerative circuits, and other high-frequency power applications.

Key Features

• Type & Mounting — Screw terminal radial can (Polarized) for robust, low-resistance power connections in industrial assemblies.
• Capacitance & Voltage — 18 mF nominal capacitance with a 400 V rated voltage and ±20% tolerance at 120 Hz, 20°C.
• High ripple-current handling — Rated ripple current of 48.2 A at 120 Hz and 67.48 A at 100 kHz for demanding AC and high-frequency loads.
• Thermal and lifetime performance — Operates from −40°C to +85°C with a specified load life of 5000 hours at 85°C under rated ripple current.
• High-frequency charge–discharge endurance — Designed to cope with high-speed charge–discharge loading and verified endurance of 50 million charge–discharge cycles (ΔV = rated voltage × 0.3, 3 Hz) at room temperature as per series specifications.
• Leakage & insulation characteristics — Leakage current limit specified as not more than 3√(V) μA or 5 mA (whichever is smaller) after 5 minutes at 20°C; insulation resistance >100 MΩ at DC 500 V between terminal and bracket per series data.
• Safety & robustness — Voltage withstand (no abnormality) during AC 2500 V, 1 minute application between terminal and bracket and endurance/shelf-life specifications defined by the series.
• Environmental compliance — RoHS compliant (2011/65/EU, (EU)2015/863).
• Physical size — Compact footprint with dimensions L: 20.5 × D: 9 cm and radial can package with screw terminals.

Typical Applications

• Industrial inverter power supplies — Provides bulk energy storage and handles high ripple currents for inverter front-end and DC-link filtering.
• AC servomotor regenerative circuits — Suited for high-frequency regenerative voltages and rapid charge–discharge cycles in motor drives.
• General inverter and power electronics — Reliable DC-link and smoothing capacitance for power conversion systems operating at elevated temperatures.

Unique Advantages

• High ripple-current capability: Rated ripple currents at 120 Hz and 100 kHz (48.2 A and 67.48 A respectively) enable effective handling of heavy AC and high-frequency loads.
• Elevated-temperature endurance: 5000-hour load life at 85°C under rated ripple current supports long-term operation in thermally demanding environments.
• Compact, screw-terminal packaging: Smaller-sized radial can with screw terminals simplifies secure power connections while saving board/system space.
• Designed for fast charge–discharge: Engineered to cope with high-speed charge–discharge cycles, supporting regenerative and pulsed-power applications.
• Verified electrical robustness: Series-level insulation resistance, leakage current limits, and voltage proof tests provide measurable quality and reliability metrics.
• RoHS compliant: Meets applicable RoHS directives for restrictive substance compliance.

Why Choose LNC2G183MSEJBN?

The LNC2G183MSEJBN positions itself as a reliable power-electronics capacitor for engineers needing high ripple-current capacity and long operational life in compact screw-terminal packaging. Its 18 mF/400 V rating, combined with defined endurance at 85°C and high-frequency performance, make it well suited to inverter DC-link, regenerative circuits, and other industrial power systems.

Manufactured by Nichicon and built to series specifications that include insulation resistance, leakage current limits, and charge–discharge endurance, this component delivers measurable performance and compliance for industrial power designs.

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