LNC2G103MSEH

The LNC2G103MSEH is a screw-terminal aluminum electrolytic capacitor in Nichicon’s LNC series, rated 10,000 µF at 400 V and polarized for DC applications. It is a radial can with screw terminals designed for industrial power electronics where high ripple handling and robust charge-discharge endurance are required.

Targeted use cases include inverter power supplies and high-frequency regenerative circuits for AC servomotors and general inverters. Key value comes from its high ripple-current capability, long load life at elevated temperature, and compact form factor for the series.

Key Features

• Capacitance & Voltage: 10,000 µF (10 mF) capacitance at a 400 V rated voltage, with capacitance tolerance ±20%.
• Screw-terminal, radial can package: Screw terminal mounting for secure, low-inductance connections; package case described as Radial, Can - Screw Terminals with dimensions L: 16.5 × D: 7.62 cm.
• Temperature range: Rated for −40 °C to +85 °C operation.
• High ripple-current handling: 29.5 A at 120 Hz and 41.3 A at 100 kHz, supporting heavy AC and high-frequency regenerative loads.
• Long load life: Designed for 5000 hours of load life when subjected to rated DC bias plus rated ripple current at 85 °C.
• Charge-discharge endurance: Specified to withstand 50 million charge-discharge cycles (ΔV = rated voltage × 0.3, cycle 3 Hz) at room temperature while meeting post-test limits for capacitance, tan δ, and leakage.
• Leakage and insulation: Leakage current after 5 minutes is limited to not more than 3√(V) µA or 5 mA, whichever is smaller (at 20 °C); insulation resistance is >100 MΩ at DC 500 V between terminal and bracket.
• Voltage proof: Withstands AC 2500 V for 1 minute between terminal and bracket without abnormality.
• RoHS compliant: Compliant to the RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

• Industrial inverter power supplies — Bulk energy storage and smoothing for inverter DC buses where sustained ripple current and long life at 85 °C are required.
• AC servomotor regenerative circuits — Handles high-frequency regenerative voltage and rapid charge-discharge cycles in motor drives.
• High-frequency power electronics — Suitable for designs requiring robust ripple performance at both low (120 Hz) and high (100 kHz) frequencies.

Unique Advantages

• High ripple-current capability: Specified ripple currents of 29.5 A (120 Hz) and 41.3 A (100 kHz) reduce stress on series components and improve DC-bus stability under heavy AC loading.
• Compact LNC-series form factor: Smaller-sized design for the series while delivering higher ripple capability than comparable LNX/LNK parts, enabling space-efficient layouts.
• Extended load life at elevated temperature: 5000-hour life at 85 °C under rated ripple conditions provides predictable long-term performance in demanding environments.
• Robust electrical safety margins: Insulation resistance >100 MΩ at 500 V and AC 2500 V voltage-proof testing offer reassurance for high-voltage assemblies.
• High charge-discharge endurance: Validated for 50 million cycles at specified ΔV and frequency, making it appropriate for regenerative and pulse-heavy applications.
• Standards-aligned leakage limits: Clear leakage current specification (3√V µA or 5 mA rule) for design and verification of DC-bias behavior.

Why Choose LNC2G103MSEH?

The LNC2G103MSEH positions itself as a high-capacity, high-ripple screw-terminal electrolytic solution for industrial power electronics that demand sustained performance at elevated temperatures. With 10,000 µF at 400 V, explicit ripple-current ratings at both low and high frequency, and a 5000-hour load-life specification at 85 °C, it is well suited to inverter DC buses, regenerative drives, and other high-stress power applications.

Designers and procurement teams benefit from predictable endurance and electrical margins—insulation resistance, voltage-proof testing, and defined leakage limits—backed by the LNC series’ smaller-sized footprint and screw-terminal reliability. Choose this part when long-term robustness, high-frequency ripple tolerance, and secure terminal connections are central to system performance.

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