LNU2H182MTEG

The LNU2H182MTEG is an aluminum electrolytic capacitor in a screw-terminal (stud/bolt mount) can designed for high-voltage industrial power applications. It provides 1.8 mF (1800 µF) capacitance at a 500 V rating with a −40°C to +105°C operating temperature range.

Part of Nichicon’s LNU series, this capacitor is intended for inverter circuitry, high-frequency regenerative voltages for AC servomotors and general inverters, and applications that require high-voltage capability, sustained ripple handling, and long life at elevated temperature.

Key Features

• Capacitance and Voltage: 1.8 mF (1800 µF) nominal capacitance with a 500 V rated voltage (series rated up to DC525 V).
• High-temperature endurance: Rated for operation from −40°C to +105°C with a specified load life of 5000 hours at 105°C under rated ripple current.
• Ripple current capability: Designed to handle 7.4 A at 120 Hz and 10.36 A at 10 kHz, supporting high-ripple and high-frequency environments.
• Mechanical / Mounting: Screw terminal (stud bolt mount) package with radial can and M5 nominal bolt interface for secure high-current connections.
• Reliability & endurance: Endurance, shelf life, and charge–discharge specifications meet series requirements (capacitance retention 90%–120%, tan δ within specified limits, leakage current within initial specified value after test conditions).
• Leakage current specification: After 5 minutes at rated voltage, leakage is limited to 3√(C·V) µA or 5 mA, whichever is smaller, per series specification.
• Electrical isolation & withstand: Insulation resistance >100 MΩ at DC 500 V between terminal and bracket; withstands AC 2500 V for 1 minute between terminal and bracket.
• Compact high-voltage format: LNU series offers a smaller physical footprint compared to LNT while providing high-voltage capability; this part measures approximately L: 10 cm × D: 6.35 cm.
• RoHS compliance: Compliant with RoHS directives (2011/65/EU, (EU)2015/863).

Typical Applications

• Industrial inverter power supplies: Bulk and smoothing capacitance for inverter front-ends and DC link circuits in industrial drives.
• AC servomotor regenerative circuits: Energy buffering and high-frequency regenerative voltage handling in servo amplifiers and motor drives.
• High-speed charge–discharge systems: Circuits that require frequent or rapid charge–discharge cycles, supported by series charge–discharge endurance specifications.
• General high-voltage power electronics: Applications requiring a high-voltage, high-temperature-capable electrolytic solution with stud-mount connectivity.

Unique Advantages

• High-voltage performance: 500 V rating (series up to DC525 V) enables use in higher-voltage power electronics without parallel part counts.
• Long life at elevated temperature: 5000-hour load life at 105°C under rated ripple current supports demanding industrial duty cycles.
• High ripple and frequency handling: Specified ripple current ratings at 120 Hz and 10 kHz provide defined performance for both low- and high-frequency applications.
• Robust mechanical mounting: Screw-terminal stud mount design with M5 interface ensures secure high-current connections and straightforward replacement/serviceability.
• Proven series specification set: Endurance, shelf life, leakage and insulation resistance specs give clear, testable electrical reliability metrics for design validation.
• Regulatory compliance: RoHS conformity supports environmental and procurement requirements.

Why Choose LNU2H182MTEG?

The LNU2H182MTEG positions itself as a reliable high-voltage electrolytic capacitor for industrial power electronics where sustained ripple handling, high operating temperature, and long-life endurance are required. Its screw-terminal can package and defined electrical isolation and withstand ratings make it suitable for serviceable power assemblies and inverter/DC-link designs.

This part is appropriate for engineers and procurement teams specifying high-voltage bulk or smoothing capacitance in industrial drives, regenerative systems, and other high-ripple environments that demand verifiable performance and RoHS compliance from a recognized capacitor series.

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