LNU2H392MSEHBB

The LNU2H392MSEHBB is a screw‑terminal aluminum electrolytic capacitor in Nichicon’s LNU series, providing 3.9 mF (3900 µF) capacitance at a 500 V rating. Designed for high‑voltage industrial power systems, it delivers high ripple handling and long operating life in demanding inverter and regenerative applications.

Built for elevated temperature operation and frequent charge–discharge cycles, this polarized can‑type capacitor supports -40 °C to 105 °C operation and RoHS compliance for modern industrial designs.

Key Features

• High Voltage Capacity — Rated at 500 V with the LNU series supporting up to DC 525 V, enabling use in industrial inverters and high‑voltage power supplies.
• Large Capacitance — 3.9 mF (3900 µF) nominal capacitance with ±20% tolerance (measured at 120 Hz, 20 °C) to stabilize DC rails and absorb regenerative energy.
• High Ripple Performance — Rated ripple current of 12.4 A at 120 Hz and 17.36 A at 10 kHz, suitable for high‑frequency regenerative voltages and fast charge/discharge cycles.
• Robust Thermal Endurance — Specified for continuous use up to 105 °C with a rated load life of 5000 hours when subjected to rated ripple current at 105 °C.
• Screw Terminal, Radial Can Package — Screw‑terminal mounting simplifies installation in power assemblies and provides secure electrical and mechanical connections.
• Reliability and Insulation — Insulation resistance greater than 100 MΩ at DC 500 V between terminal and bracket; voltage proof testing at AC 2500 V for 1 minute.
• Charge–Discharge Endurance — Validated for charge–discharge endurance (50 million cycles at 3 Hz with ΔV ≈ rated voltage ±0.3 V) with specified limits on capacitance, dissipation factor, and leakage current.
• RoHS Compliant — Meets RoHS directive requirements (2011/65/EU, (EU)2015/863).

Typical Applications

• Industrial Inverters — Energy buffering and DC link stabilization in inverter power stages for motor drives and industrial converters.
• Regenerative Drives — Absorbing and smoothing high‑frequency regenerative voltages in AC servomotor and regenerative braking systems.
• High‑Voltage Power Supplies — Filtering and energy storage in industrial power supplies that require high voltage and sustained ripple handling.

Unique Advantages

• High‑voltage capability: 500 V nominal rating (series up to 525 V) supports demanding industrial power architectures without parallel arrays of lower‑voltage capacitors.
• Compact, high‑energy can: LNU series is specified as smaller than certain predecessors, enabling denser power assemblies where space is constrained.
• High ripple and high‑frequency handling: Specified ripple currents at both 120 Hz and 10 kHz address both low‑frequency smoothing and high‑frequency regenerative loads.
• Long elevated‑temperature life: 5000 hours at 105 °C under rated ripple current provides predictable lifetime performance in hot operating environments.
• Proven charge–discharge durability: Endurance validated over millions of cycles for systems that require frequent energy transfer and rapid voltage swings.
• Secure screw‑terminal mounting: Ease of installation and reliable mechanical/electrical connection for industrial panel and cabinet assemblies.

Why Choose LNU2H392MSEHBB?

LNU2H392MSEHBB positions itself for industrial power designs that demand high voltage, strong ripple performance, and durable operation at elevated temperatures. Its combination of 3900 µF capacitance, 500 V rating, and validated endurance tests make it well suited to inverter DC links, regenerative drives, and high‑frequency power stages.

For engineers and procurement teams building robust, long‑life power systems, this screw‑terminal capacitor delivers verifiable performance metrics—ripple currents, insulation resistance, and load‑life data—backed by Nichicon’s LNU series specifications and RoHS compliance.

Request a quote or contact sales to discuss pricing, availability, and how LNU2H392MSEHBB can meet your project requirements.