LNU2W822MSEHBN

The LNU2W822MSEHBN is a screw-terminal aluminum electrolytic capacitor from Nichicon’s LNU series, rated 8.2 mF (8200 µF) at 450 V with an operating range from –40 °C to 105 °C. Designed for industrial power systems, it targets inverter circuitry and high-frequency regenerative applications such as AC servomotor drives and general inverters. Key value comes from high-voltage capability, compact high-voltage packaging, and long endurance under ripple loading.

Key Features

• Capacitance & Voltage — 8.2 mF (8200 µF) rated at 450 V DC; rated voltage range up to DC525 V as defined for the series.
• High Temperature Endurance — Load life of 5000 hours at 105 °C with rated DC bias plus rated ripple current applied; designed to retain capacitance and dielectric properties after endurance testing.
• High Ripple Capability — Specified ripple current of 25.7 A at 120 Hz and 35.98 A at 10 kHz, supporting heavy AC ripple and high-frequency loading in power electronics.
• Charge–Discharge Robustness — Constructed to withstand high-speed charge–discharge loading; series endurance testing includes 50 million charge–discharge cycles (3 Hz).
• Package & Mounting — Screw terminal radial can for secure high-current connections; physical size φ76.2 × 195 mm (diameter × length) with bracket supplied separately.
• Electrical Safety & Insulation — Insulation resistance >100 MΩ at DC 500 V between terminal and bracket; voltage-proof withstand of AC 2500 V for 1 minute between terminal and bracket.
• Leakage & Loss Characteristics — Leakage current after 5 minutes’ application of rated voltage is ≤ 3√CV (µA) or 5 mA, whichever is smaller (at 20 °C). Loss-angle measurements referenced at 120 Hz, 20 °C.
• Environmental Compliance — RoHS compliant (2011/65/EU, (EU)2015/863).
• Series Advantages — LNU series: high-voltage capability in a more compact size compared with the LNT series.

Typical Applications

• Industrial Inverters — Bulk energy storage and ripple smoothing in inverter power supplies used for motor control and industrial drives.
• AC Servomotor Regeneration — Handling high-frequency regenerative voltages in servo systems where robust charge–discharge performance is required.
• High-Frequency Power Electronics — Filtering and energy buffering in circuits exposed to high ripple currents at kHz frequencies.

Unique Advantages

• High-Voltage, High-Density Design: 450 V rating (series up to DC525 V) in a smaller package footprint compared with certain legacy parts, enabling compact power-system layouts.
• Long-Life Reliability: 5000-hour rated life at 105 °C under ripple load helps ensure predictable long-term performance in high-temperature installations.
• High Ripple & HF Performance: Specified ripple current at both 120 Hz and 10 kHz supports designs that require low impedance at switching frequencies.
• Robust Mechanical & Electrical Isolation: High insulation resistance and AC voltage-proof ratings provide assurance for separation between terminals and chassis.
• Charge–Discharge Durability: Designed and tested for extensive charge–discharge cycling, making it suitable for regenerative and pulse-power applications.
• Regulatory Compliance: RoHS conformity simplifies environmental compliance for end products.

Why Choose LNU2W822MSEHBN?

The LNU2W822MSEHBN combines high capacitance and high DC voltage capability with a screw-terminal radial package tailored for industrial power electronics. Its specification set—high ripple current ratings, long 105 °C endurance, robust insulation, and charge–discharge endurance—makes it well suited for inverter systems and regenerative motor drives that demand dependable energy buffering and frequent dynamic loading.

Designed by Nichicon and built on the LNU series platform, this capacitor offers a balance of performance and reliability for engineers specifying components for industrial drives, power supplies, and high-frequency power conversion equipment seeking a proven, high-voltage electrolytic solution.

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