LNUN7222MSEHBN

The LNUN7222MSEHBN is a screw‑terminal aluminum electrolytic capacitor from Nichicon’s LNU series. It delivers 2.2 mF (2200 µF) capacitance at a high DC rating of 525 V with a 105°C operating temperature rating and a ±20% tolerance.

Designed for industrial power systems, this radial can with screw terminals addresses high‑voltage DC link, inverter and regenerative circuits by combining high ripple capability and long high‑temperature endurance in a compact package (φ76.2 × 100 mm).

Key Features

• Capacitance & Voltage — 2.2 mF (2200 µF) nominal capacitance rated to DC 525 V for high‑voltage DC applications.
• High Temperature Endurance — Rated for continuous operation from −40°C to +105°C with a specified life of 5000 hours at 105°C under rated ripple and DC bias.
• High Ripple Current Handling — 9.20 A at 120 Hz (low frequency) and 12.88 A at 10 kHz (high frequency) to support heavy ripple and regenerative loads.
• Loss and Leakage — Specified tangent of loss angle (tan δ) of 0.2 and a leakage current of 3220 µA, enabling predictable loss and self‑discharge behavior.
• Mechanical & Mounting — Radial can with screw‑terminal construction and M5 stud compatibility for secure, low‑impedance connections in modular power assemblies.
• Tolerance & Polarization — Polarized electrolytic with ±20% capacitance tolerance (120 Hz, 20°C).
• Regulatory — RoHS compliant.

Typical Applications

• Industrial power supplies and inverters — DC link and smoothing duties where high voltage and robust ripple handling are required for inverter circuitry.
• AC servomotor regenerative circuits — Supports high‑frequency regenerative voltages in motor drive systems.
• High‑speed charge/discharge systems — Suited for applications with frequent charge/discharge cycles and high current transients.
• General purpose high‑voltage DC filtering — Bulk energy storage and filtering in industrial power electronics.

Unique Advantages

• High DC voltage rating: 525 V rating enables use in higher‑voltage DC link and inverter designs without series capacitors.
• Robust ripple capability: High ripple current ratings at both low and high frequency help reduce thermal stress and extend system reliability.
• Extended high‑temperature life: 5000 hours at 105°C demonstrates endurance for demanding industrial environments.
• Screw‑terminal packaging: Radial can with M5 screw terminals provides secure electrical connection and straightforward mechanical mounting for modular assemblies.
• Compact high‑voltage form factor: φ76.2 × 100 mm construction offers a high voltage and capacitance density for space‑constrained power modules.
• Predictable electrical behavior: Specified tan δ and leakage current values support accurate thermal and discharge planning in designs.

Why Choose LNUN7222MSEHBN?

LNUN7222MSEHBN is positioned for engineers building high‑voltage power electronics who need a durable, high‑ripple capacitor with a compact screw‑terminal package. Its combination of 525 V rating, strong ripple performance at both low and high frequencies, and 5000‑hour life at 105°C makes it suitable for inverter DC links, regenerative motor drives, and other industrial power applications.

As part of Nichicon’s LNU series, this capacitor provides verifiable specifications for capacitance, loss, leakage and mechanical form factor, enabling straightforward integration into designs that require predictable performance and long‑term thermal endurance.

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