LNU2H122MSEGBN

The LNU2H122MSEGBN is a high-voltage aluminum electrolytic capacitor in a screw-terminal can, rated 500 V with 1,200 µF nominal capacitance and ±20% tolerance. Designed for industrial power systems, it is intended for inverter circuitry, regenerative voltage in AC servomotors, and general inverter applications where high voltage, high ripple endurance and compact packaging are required.

Built to operate from −40°C to +105°C with a 5,000-hour load life at 105°C, this Nichicon LNU-series unit delivers predictable performance under sustained ripple loading and frequent charge–discharge cycling.

Key Features

• Capacitance & tolerance — 1,200 µF nominal capacitance with ±20% tolerance (120 Hz, 20°C).
• High rated voltage — 500 V DC rating suitable for high-voltage industrial power rails.
• Screw-terminal construction — Radial can with screw terminals for secure, low-resistance connections in power assemblies.
• Wide operating temperature — Specified for −40°C to +105°C operation, with endurance verified at elevated temperature.
• Long load life — Rated for 5,000 hours at 105°C with DC bias plus rated ripple current applied.
• High ripple capability — Ripple current ratings of 5.7 A at 120 Hz and 7.98 A at 10 kHz support demanding power-conditioning tasks.
• Charge–discharge endurance — Series-level qualification includes survival of 50 million charge–discharge cycles at 3 Hz, demonstrating robustness for regenerative and high-speed cycling use cases.
• Low-temperature stability — Impedance ratio Z(−40°C)/Z(+20°C) of up to 8 for 400–525 V units, aiding performance in cold-start conditions.
• Leakage, insulation and dielectric integrity — Leakage current specified as ≤ 3√(C·V) µA or 5 mA (whichever is smaller) after 5 minutes at 20°C; insulation resistance >100 MΩ at DC 500 V; withstands AC 2,500 V for 1 minute between terminal and bracket.
• Physical profile & packaging — φ63.5 × 80 mm (L: 8 × D: 6.35 cm) can size with screw terminals; supplied in cardboard packing for mass production handling.
• RoHS compliant — Conforms to RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

• Industrial power supplies — Bulk energy storage and smoothing in high-voltage DC rails for inverter and switching power supplies.
• Motor drives and servos — Energy buffering and regenerative voltage handling for AC servomotor drive systems.
• General inverter systems — High-voltage filtering and ripple suppression in inverter and converter topologies.
• High-frequency charge–discharge systems — Applications requiring frequent cycling and fast charge/discharge handling benefit from the series' endurance testing.

Unique Advantages

• High-voltage capability: 500 V rating supports designs that require elevated DC bus voltages without stacking multiple capacitors.
• Compact, screw-terminal packaging: Radial can with screw terminals simplifies installation in power assemblies while providing robust electrical connections.
• Durability at elevated temperature: 5,000-hour load life at 105°C provides predictable long-term behavior in hot operating environments.
• High ripple and frequency performance: Measured ripple current ratings at 120 Hz and 10 kHz enable reliable operation under significant AC stress and switching noise.
• Proven cycle endurance: Series-level charge–discharge testing to 50 million cycles demonstrates suitability for regenerative and high-duty-cycle applications.
• Measurable leakage and insulation specs: Defined leakage, insulation resistance and voltage-proof values permit straightforward reliability assessments and system-level margining.

Why Choose LNU2H122MSEGBN?

The LNU2H122MSEGBN positions itself as a reliable high-voltage energy-storage component for industrial power electronics where sustained ripple, thermal endurance and frequent cycling are design drivers. Its 500 V rating, 1,200 µF capacitance and screw-terminal can format make it well-suited to inverter modules, motor drives and high-voltage DC bus applications.

For engineers and procurement teams focused on long-term robustness and verifiable electrical characteristics—such as ripple current capability, leakage and insulation resistance—this Nichicon LNU-series part offers a clear specification set that supports predictable integration into power systems.

If you would like pricing, availability or a formal quote for LNU2H122MSEGBN, please submit a request or contact sales to discuss volume options and delivery for your project.