LNY2G123MSEH

The LNY2G123MSEH is a screw-terminal aluminum electrolytic capacitor designed for general-purpose power applications that require high capacitance in a compact package. As a member of Nichicon’s LNY series, it delivers 12,000 µF at a 400 V rating with a design focus on equipment downsizing and reliable performance under ripple-loading conditions.

Key use cases include power supply energy storage and smoothing where elevated ripple current capability and high voltage handling are required. The part combines high capacitance, robust ripple-current rating, and an operating temperature range suitable for industrial environments.

Key Features

• High Capacitance: 12,000 µF (12 mF) nominal capacitance for bulk energy storage and smoothing.
• 400 V Rated Voltage: Designed and rated for 400 V DC continuous operation.
• Screw Terminal Mounting: Radial can with screw terminals for secure high-current connections and simplified field wiring.
• Ripple Current Capability: 26 A at 120 Hz and 36.4 A at 10 kHz, enabling handling of substantial AC ripple in power converters and DC link circuits.
• Load Life: 2000 hours when subjected to rated ripple current at 85°C, demonstrating endurance under sustained stress.
• Operating Temperature Range: −40°C to +85°C to accommodate a broad range of industrial operating environments.
• Electrical Reliability: Insulation resistance greater than 100 MΩ at DC 500 V between terminal and bracket; voltage proof of AC 2500 V for one minute between terminal and bracket.
• Low Leakage Specification: Leakage current after 5 minutes’ application of rated voltage is ≤ 3√(C·V) µA or 5 mA, whichever is smaller (at 20°C).
• RoHS Compliant: Conforms to RoHS directive (2011/65/EU, (EU)2015/863).
• Compact Footprint: Physical size L: 22 cm × D: 7.62 cm to support equipment downsizing initiatives.

Typical Applications

• General-Purpose Power Systems: Bulk energy storage and smoothing in power supplies requiring 400 V rated capacitance.
• Power Conversion and DC Link: Supports DC link and intermediate bus filtering with high ripple-current handling.
• Industrial Equipment: Fits applications where equipment downsizing and durable operation at elevated temperatures are priorities.

Unique Advantages

• High energy density: 12,000 µF at 400 V provides substantial capacitance in a compact radial screw-terminal can, aiding board- and system-level downsizing.
• Designed for ripple stress: Specified ripple current ratings (26 A @120 Hz, 36.4 A @10 kHz) allow the capacitor to handle heavy AC components without immediate degradation.
• Robust thermal endurance: 2000 hours load life at 85°C under rated ripple current gives predictable aging characteristics for long-term designs.
• Secure high-current connections: Screw terminals simplify assembly and ensure reliable mechanical and electrical connections for high-current pathways.
• Verified electrical integrity: Insulation resistance and voltage-proof specifications between terminal and bracket support safe use in high-voltage assemblies.
• Regulatory compliance: RoHS conformity supports deployment in regions requiring restricted-substance compliance.

Why Choose LNY2G123MSEH?

The LNY2G123MSEH positions itself as a practical solution for engineers needing high-capacitance, high-voltage bulk storage that balances performance and packaging for equipment downsizing. Its combination of 12,000 µF at 400 V, robust ripple-current ratings, and a 2000-hour load-life at 85°C makes it suitable for designs where sustained ripple stress and thermal endurance are key selection criteria.

This part is well suited to designers and procurement teams specifying capacitors for industrial power electronics, DC link filtering, and general-purpose power supplies. Backed by Nichicon’s LNY series specifications and RoHS compliance, it offers predictable electrical behavior and regulatory alignment for commercial and industrial projects.

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