LNC2W123MSEJBN

The LNC2W123MSEJBN is a screw-terminal aluminum electrolytic capacitor in Nichicon’s LNC series, rated 12,000 µF at 450 V. It is a polarized, radial-can type designed for industrial power electronics where compact bulk energy storage and high ripple-handling are required.

Engineered for inverter and regenerative applications, this capacitor delivers high ripple-current capability and long load life at up to 85°C, making it suitable for industrial power supplies, AC servomotor regenerative circuits and general inverter systems that demand frequent charge–discharge cycling.

Key Features

• High Capacitance & Voltage  12,000 µF nominal capacitance at a 450 V rating for bulk energy storage and smoothing in high-voltage power circuits.
• Screw Terminal, Radial Can Package  Screw terminal mounting with a radial can package provides secure electrical connections and straightforward mechanical installation.
• High Ripple Current Performance  Designed to support ripple currents of 38.2 A at 120 Hz and 53.48 A at 100 kHz, enabling robust handling of low- and high-frequency ripple loads.
• Compact Size  Smaller-sized construction compared to LNX and LNK series while maintaining high ripple-current capability, aiding in space-constrained power designs.
• Wide Temperature Range & Load Life  Rated for –40°C to +85°C with a load-life specification of 5000 hours at 85°C under applied ripple current.
• Charge–Discharge Endurance  Validated for durability under high-speed cycling: endurance test of 50 million charge–discharge cycles (ΔV = 0.3 × rated voltage, 3 Hz) at room temperature.
• Electrical Safety & Leakage  Leakage current after 5 minutes is specified as not more than 3√V µA or 5 mA (whichever is smaller) at 20°C; insulation resistance >100 MΩ at DC 500 V between terminal and bracket, and voltage proof AC 2500 V for 1 minute between terminal and bracket.
• RoHS Compliant  Conforms to the RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

• Industrial Inverters  Bulk smoothing and energy storage in inverter power supplies used for industrial motor drives and power conversion.
• AC Servomotor Regeneration  Handles high-frequency regenerative voltages and frequent charge–discharge cycles in servo systems.
• General Power Electronics  Energy buffering and ripple suppression in AC/DC and DC/DC converters where high ripple currents and compact size are required.

Unique Advantages

• High ripple-current tolerance: Supports substantial ripple currents at both low and high frequencies (38.2 A at 120 Hz, 53.48 A at 100 kHz), reducing thermal stress in demanding power applications.
• Space-efficient design: Smaller-sized form factor than comparable LNX/LNK series parts lets designers reduce system volume without sacrificing ripple performance.
• Proven durability under load: 5000-hour load-life rating at 85°C under applied ripple current provides predictable long-term performance in industrial environments.
• Robust charge–discharge endurance: Qualified for 50 million charge–discharge cycles at specified conditions, supporting high-speed switching and regenerative loads.
• Clear electrical limits and safety margins: Defined leakage, insulation resistance, and voltage-proof characteristics simplify design validation and safety assessments.
• RoHS compliance: Meets current EU RoHS requirements for use in regulated markets.

Why Choose LNC2W123MSEJBN?

The LNC2W123MSEJBN balances high capacitance and high-voltage capability with a screw-terminal radial can package engineered for industrial power electronics. Its combination of elevated ripple-current ratings, compact dimensions relative to comparable series, and defined endurance and load-life specifications make it well suited for inverter supplies, regenerative drives and other high-frequency power systems where reliability and space efficiency matter.

As part of Nichicon’s LNC series, this capacitor is specified for repeated charge–discharge duty and extended operation at elevated temperatures, offering designers clear, test-backed performance characteristics to simplify selection and system qualification.

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