LNU2H122MSEGBB

The LNU2H122MSEGBB from Nichicon is an aluminum electrolytic capacitor in a screw-terminal radial can package designed for industrial power electronics. It delivers 1.2 mF capacitance at a 500 V rating, with an operating temperature range of –40°C to 105°C and RoHS compliance.

Engineered for inverter circuitry and high-frequency regenerative environments, this screw-terminal capacitor supports high ripple current, high-voltage operation up to DC525 V (series rating), and endurance under heavy charge–discharge loading—making it well suited for industrial power supplies and AC servomotor inverter applications.

Key Features

• Capacitance & Tolerance — 1.2 mF (1200 µF) with ±20% tolerance (120 Hz, 20°C).
• High Voltage Capability — Rated for 500 V; the LNU series supports rated voltages up to DC525 V.
• High Temperature Endurance — Continuous operation from –40°C to 105°C with a rated load life of 5000 hours at 105°C when ripple current is applied.
• Ripple Current Performance — 5.7 A at 120 Hz and 7.98 A at 10 kHz, supporting high-frequency and high-ripple applications.
• Screw Terminal Package — Radial can with screw terminals provides robust, low-impedance connections for power assemblies.
• Robust Reliability Tests — Meets 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) criteria; endurance verified after 50 million charge–discharge cycles per series test conditions.
• Leakage Current Specification — After 5 minutes at rated voltage and 20°C, leakage current is limited to 3√(C·V) µA or 5 mA, whichever is smaller.
• Compact High-Voltage Design — LNU series offers high-voltage performance in a smaller footprint compared with the LNT series.
• Standards and Compliance — Compliant with RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

• Industrial Power Supplies — Bulk and smoothing capacitance for inverter power stages and general industrial converters.
• Inverter & Motor Drive Systems — Energy buffering and regenerative voltage handling in AC servomotor and inverter circuits.
• High-Frequency Regenerative Circuits — Designed to cope with high-speed charge–discharge loading and high-frequency ripple currents.

Unique Advantages

• High-voltage readiness: 500 V rating (series up to DC525 V) enables use in higher-voltage power systems without series stacking.
• Designed for sustained high-temperature duty: 5000-hour load life at 105°C under ripple current provides predictable longevity in demanding environments.
• Strong ripple-current capability: Specified values at both 120 Hz and 10 kHz support a wide range of switching and regenerative power topologies.
• Secure screw-terminal connections: Radial can with screw terminals simplifies integration into rugged power assemblies and reduces contact resistance.
• Proven endurance under cycling: Series endurance testing for millions of charge–discharge cycles demonstrates capability for high-frequency regenerative use.
• Regulatory compliance: RoHS conformity supports restriction-of-hazardous-substance requirements for industrial equipment.

Why Choose LNU2H122MSEGBB?

The LNU2H122MSEGBB combines high-voltage capability, strong ripple-current handling, and proven thermal endurance in a screw-terminal aluminum electrolytic form factor. As part of Nichicon’s LNU series, it is intended for engineers designing inverters, motor drives, and industrial power supplies that demand reliable energy storage and regenerative performance.

This capacitor is targeted at designs requiring sustained operation at elevated temperatures and repeated charge–discharge cycling, offering verifiable specifications for leakage, insulation, voltage proof, and end-of-life behavior that help simplify component selection and system validation.

Request a quote or submit an RFQ to obtain pricing and availability for the LNU2H122MSEGBB and to discuss quantities or lead times.