LGN2G391MELA50

The LGN2G391MELA50 is a Nichicon LGN series aluminum electrolytic capacitor in a snap‑in terminal configuration. It delivers 390 µF capacitance at a 400 V rating and is designed for general-purpose power applications that require high voltage handling and substantial ripple tolerance.

Engineered for elevated operating temperatures, this part supports prolonged operation at 105°C with a qualified endurance of 3000 hours, making it suitable for designs that demand sustained performance under thermal stress.

Key Features

• Electrical Performance — 390 µF nominal capacitance with a tolerance of −20% to +20% and a rated voltage of 400 V; tangent of loss angle (tanδ) 0.15 at 20°C, 120 Hz.
• High Ripple Capability — Low-frequency ripple current of 1.55 A (120 Hz) and high-frequency ripple current of 2.216 A (100 kHz) to support AC ripple and switching environments.
• Leakage Current — Specified leakage current of 1180 µA after application of rated voltage.
• Thermal Endurance — Rated operating temperature range −25°C to 105°C with a life/endurance rating of 3000 hours at 105°C when subjected to D.C. bias plus rated ripple current.
• Mounting & Package — Snap‑in terminal, radial can style for secure PCB mounting; supplied in tray packing and available in mass production status.
• Regulatory — RoHS compliant.
• Series Characteristics — Part of the LGN series, which is specified to withstand 3000 hours of rated ripple current at 105°C and is offered in a smaller-sized 105°C snap-in family.

Typical Applications

• General-purpose power electronics — Bulk capacitance for filtering and energy storage in 400 V class power subsystems.
• Power supplies — Smoothing and ripple attenuation where long-term thermal endurance and high-voltage rating are required.
• Industrial equipment — Energy buffering and decoupling in systems exposed to elevated temperatures or continuous ripple loading.

Unique Advantages

• High-voltage capability: The 400 V rating enables use in higher-voltage power rails without series stacking.
• Extended high‑temperature life: 3000 hours at 105°C provides predictable long-term performance under continuous thermal stress.
• Robust ripple handling: Specified ripple currents at both low and high frequencies accommodate a range of switching and AC ripple conditions.
• Snap‑in mounting: Radial, snap‑in can design for secure mechanical retention and reliable PCB installation.
• RoHS compliant and production-ready: Tray packing and mass‑production status simplify procurement and assembly planning.

Why Choose LGN2G391MELA50?

LGN2G391MELA50 combines a high 400 V rating with substantial 390 µF capacitance and verified endurance at 105°C, providing a reliable option for general-purpose power designs that require sustained ripple performance and thermal resilience. The snap‑in radial can construction and tray packing support straightforward assembly and production scaling.

This Nichicon LGN series part is well suited to engineers and procurement teams specifying capacitors for high-voltage, high-ripple applications where verified lifetime at elevated temperature and RoHS compliance are priorities.

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