LGU2F391MELA

The LGU2F391MELA is a snap-in terminal aluminum electrolytic capacitor from Nichicon’s LGU series, designed for general-purpose high-voltage power applications. Engineered for 315 V operation with 390 µF capacitance and robust ripple-current capability, it targets power filtering and DC bus smoothing where long-term thermal endurance and secure snap-in mounting are required.

This component delivers rated performance up to 105°C with a 3000-hour endurance specification, RoHS compliance, and tray packing for production assembly.

Key Features

• Electrical Performance 390 µF nominal capacitance at a rated voltage of 315 V with ±20% tolerance; designed for DC bus smoothing and bulk energy storage in high-voltage circuits.
• Ripple Current Handling Low-frequency ripple current 1.47 A (120 Hz) and high-frequency ripple current 2.102 A (50 kHz), enabling effective suppression of AC ripple across a range of operating frequencies.
• Leakage and Dissipation Specified leakage current 1050 µA and measured tan δ at 20°C, 120 Hz to characterize loss behavior under standard test conditions.
• Thermal Endurance Rated for operation from −25°C to 105°C with a defined endurance of 3000 hours at 105°C when subjected to DC bias plus rated ripple current.
• Package & Mounting Snap-in radial can (φ25 × 45 mm) for secure PCB mounting; supplied in tray packing suitable for production handling.
• Regulatory RoHS compliant as stated for the LGU series.

Typical Applications

• High-voltage power supplies — Bulk smoothing and filtering on 300 V+ DC rails using the 315 V rating and 390 µF capacitance to stabilize bus voltages.
• Industrial power electronics — Energy storage and ripple suppression in general-purpose industrial drives and power modules where long-term thermal endurance is required.
• PFC and converter stages — DC link and intermediate storage for converters that require high-voltage capacitance with robust ripple-current capability.

Unique Advantages

• High-voltage capability: 315 V rated voltage enables use on elevated DC rails without compromise to capacitance.
• Strong ripple resilience: Specified ripple currents at 120 Hz and 50 kHz support effective filtering across low and high frequency domains.
• Long thermal life: 3000-hour endurance at 105°C under rated conditions ensures predictable long-term performance in high-temperature environments.
• Secure snap-in mounting: Radial snap-in can simplifies PCB assembly and provides mechanical retention for higher-vibration or production environments.
• Production-ready packaging: Tray packing supports streamlined handling for automated assembly lines.
• Standards-aligned: RoHS compliance for regulatory conformity in a broad range of markets.

Why Choose LGU2F391MELA?

The LGU2F391MELA combines a high 315 V rating, substantial 390 µF capacitance and defined ripple-current capability with a 105°C, 3000-hour endurance proven by the LGU series specifications. This makes it a practical choice for designers of general-purpose high-voltage power systems who need reliable bulk energy storage and ripple suppression with secure snap-in mounting.

Its mechanical footprint (φ25 × 45 mm) and tray packaging facilitate production integration, while RoHS compliance supports regulatory requirements. Select LGU2F391MELA when you need a dependable, series-proven aluminum electrolytic capacitor for long-life high-voltage power applications.

If you would like a quote or additional procurement information for the LGU2F391MELA, please request a quote or contact our sales team to discuss availability and volume pricing.