LNUN7222MSEG

The LNUN7222MSEG is a screw-terminal aluminum electrolytic capacitor designed for high-voltage industrial power systems. It provides 2.2 mF (2200 µF) capacitance at a rated DC voltage of 525 V and is built for demanding inverter and regenerative applications.

Engineered for long life at elevated temperature, this radial can-type capacitor is suited to inverter circuitry, AC servomotor regenerative voltage handling and other high-frequency charge/discharge loads where compact high-voltage energy storage and robust ripple handling are required. It is RoHS compliant.

Key Features

• Capacitance & Voltage — 2.2 mF (2200 µF) nominal capacitance with a rated DC voltage of 525 V and ±20% tolerance (120 Hz, 20°C).
• High-temperature endurance — Rated for operation from −40°C to +105°C with a load life of 5000 hours when subjected to rated ripple current at 105°C.
• High ripple-current capability — Rated ripple current of 9.2 A at 120 Hz and 12.88 A at 10 kHz to support high-frequency and high-power switching environments.
• Designed for rapid charge/discharge — Specified to cope with high-speed charge–discharge loading and endurance for 50 million charge–discharge cycles (ΔV = rated voltage ±0.3, cycle 3 Hz) per series datasheet.
• Compact high-voltage package — Smaller-sized LNU-series can with screw terminal radial mounting; physical dimensions L: 13.5 cm × D: 6.35 cm to simplify high-voltage board integration.
• Electrical integrity — Leakage current limited by the formula 3√CV (μA) or 5 mA (whichever is smaller) after 5 minutes at rated voltage; insulation resistance >100 MΩ at DC 500 V between terminal and bracket; voltage proof AC 2500 V for 1 minute between terminal and bracket.
• Polarized screw-terminal connection — Robust screw terminals for secure, low-impedance power connections in industrial assemblies.
• Regulatory compliance — Compliant to the RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

• Industrial inverter power supplies — Energy buffering and smoothing in inverter front-ends where high DC bus voltages and compact packaging are required.
• AC servomotor regenerative circuits — Handling high-frequency regenerative voltages and rapid charge/discharge events typical in motor drives.
• General inverter systems — Supporting ripple suppression and DC bus stability in general-purpose inverter designs.

Unique Advantages

• High-voltage capability: 525 V rating provides headroom for DC bus and high-voltage inverter designs without series stacking.
• Long elevated-temperature life: 5000-hour load life at 105°C reduces maintenance and replacement frequency in high-thermal-stress environments.
• High ripple and high-frequency performance: Specified ripple current at both 120 Hz and 10 kHz supports modern switching and regenerative topologies.
• Robust charge/discharge endurance: Verified endurance for repeated high-speed charge–discharge cycles, useful in regenerative and pulse-power applications.
• Screw-terminal mounting: Provides secure, low-resistance connections for heavy-current bus wiring common in power electronics assemblies.
• RoHS compliance: Meets current environmental directive requirements for restricted substances.

Why Choose LNUN7222MSEG?

The LNUN7222MSEG positions itself as a compact, high-voltage electrolytic capacitor tailored for industrial power electronics where reliable energy storage, high ripple handling and robust charge/discharge endurance are essential. Its 525 V rating, combined with a 2.2 mF capacitance and elevated-temperature load life, makes it appropriate for inverter power supplies, regenerative drives and other high-frequency power systems.

Designers and procurement teams looking for a durable, screw-terminal aluminum electrolytic solution will find the LNUN7222MSEG delivers verifiable electrical performance and mounting convenience for heavy-current industrial applications, backed by RoHS compliance and the LNU-series specifications.

Request a quote or submit an inquiry to receive pricing and availability information for the LNUN7222MSEG and to discuss how it can fit into your power-electronics design requirements.