LNX2G123MSEJ

The LNX2G123MSEJ is a screw-terminal, large-can aluminum electrolytic capacitor from Nichicon's LNX series, designed for high-ripple, extra-high-voltage applications. It provides 12 mF capacitance at a 400 V rating in a robust radial can package with screw terminals, intended for industrial power environments.

Engineered for long-life operation, this capacitor supports demanding inverter and industrial power-supply applications with high ripple current capability and endurance specified at elevated temperature conditions. The part is RoHS compliant and offers flame-retardant electrolyte options where specified.

Key Features

• Package and Mounting — Radial can with screw terminals for secure, high-current connections in heavy-duty power assemblies.
• Capacitance and Tolerance — 12 mF nominal capacitance with ±20% tolerance at 120 Hz, 20°C.
• Voltage Rating — 400 V rated voltage for extra-high-voltage power applications.
• High Ripple Current — Rated ripple currents of 25.5 A at 120 Hz and 35.7 A at 100 kHz to handle heavy AC ripple and switching loads.
• Long Operating Life — Endurance specified for 20,000 hours at +85°C under rated ripple current (as defined for the LNX series).
• Operating Temperature Range — Specified for use between −25°C and +85°C.
• Leakage Current Specification — After 5 minutes at rated voltage, leakage current is limited to 3√CV (μA) or 5 mA, whichever is smaller (C = μF, V = V) as per datasheet.
• Compliance and Safety Options — RoHS-compliant; flame-retardant electrolyte types available within the LNX series.
• Physical Size — Body dimension L × D: 19 × 9 cm, suitable for large-can, high-energy storage requirements.

Typical Applications

• Industrial Power Supplies — Bulk filtering and energy smoothing in inverter front-ends and industrial power systems that demand high ripple capability.
• Inverter Circuitry — DC link and smoothing for inverter stages where extra-high voltage and sustained ripple handling are required.
• General Purpose Power Systems — Applications requiring durable, long-life capacitors in heavy-duty or continuous-duty power electronics.

Unique Advantages

• High ripple handling: Specified ripple currents (25.5 A at 120 Hz, 35.7 A at 100 kHz) enable reliable operation under heavy AC ripple and switching conditions.
• Long-rated endurance: 20,000 hours at +85°C under rated ripple current provides predictable lifetime characteristics for equipment planning.
• Robust screw-terminal design: Screw terminals and large-can form factor support secure mechanical mounting and high-current connections in industrial assemblies.
• Clear leakage limits: Leakage current defined by the 3√CV or 5 mA rule offers predictable standby and initial behavior after voltage application.
• Regulatory compliance and options: RoHS compliance plus availability of flame-retardant electrolyte variants addresses regulatory and safety considerations.
• Broad operating range: −25°C to +85°C rating supports deployment across a range of industrial ambient conditions.

Why Choose LNX2G123MSEJ?

The LNX2G123MSEJ is positioned for engineers designing high-voltage, high-ripple power systems who need a durable, well-specified electrolytic capacitor. Its combination of 400 V rating, substantial capacitance, defined leakage behavior, and long endurance at elevated temperature provides predictable performance for inverter front-ends and industrial power supplies.

This part is suitable for designs where sustained ripple handling, robust screw-terminal mounting, and datasheet-backed lifetime specifications are required. Selecting the LNX2G123MSEJ helps simplify parts selection by matching a clear set of electrical and physical characteristics to heavy-duty power applications.

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