LGU2F391MELC

The LGU2F391MELC is a 390 µF, 315 V aluminum electrolytic capacitor from Nichicon's LGU series, designed as a snap-in terminal radial can for general-purpose power applications. It is a 105°C standard snap-in capacitor engineered for sustained operation under rated ripple current conditions.

Key attributes include a wide operating temperature range and long endurance: the LGU series withstands 3000 hours of rated ripple current at 105°C, and this specific part is RoHS compliant and produced in tray packaging for board-level assembly.

Key Features

• Capacitance & Voltage: 390 µF nominal capacitance with a rated voltage of 315 V and a capacitance tolerance of ±20% (measured at 120 Hz, 20°C).
• High-temperature endurance: Specified life of 3000 hours at 105°C with DC bias plus rated ripple current; performance requirements are defined after restoration to 20°C.
• Ripple current capability: Low-frequency ripple current of 1.47 A at 120 Hz and high-frequency ripple current of 2.102 A at 50 kHz, supporting robust AC loading on DC rails.
• Dissipation factor (tan δ): tan δ = 0.15 (measured at 120 Hz, 20°C), providing defined loss characteristics for thermal and circuit design.
• Leakage current: Specified leakage current of 1050 µA (per product measurement conditions).
• Package & mounting: Snap-in radial can (φ35 × 30 mm length) for secure PCB mounting; supplied in tray packing and available in mass production.
• Temperature range & compliance: Operating range −25°C to +105°C and RoHS-compliant construction.

Typical Applications

• General-purpose power electronics: Bulk smoothing and energy storage on DC rails where 315 V rating and sustained ripple tolerance are required.
• Power supplies (AC/DC, DC/DC): Filtering and decoupling on higher-voltage stages that benefit from the LGU series’ ripple current and endurance specifications.
• Industrial converters and motor drives: Board-mounted bulk capacitance using snap-in terminals for reliable mechanical retention and long-term thermal performance.
• UPS and energy storage subsystems: Bulk decoupling on higher-voltage bus applications where long life at elevated temperature is important.

Unique Advantages

• 315 V rating for higher-voltage designs: Enables use on elevated DC buses without series stacking.
• Designed for continuous ripple loading: Rated ripple currents at both low and high frequencies support sustained AC stress on DC rails.
• Long endurance at elevated temperature: 3000 hours at 105°C under rated conditions supports reliable operation in thermal environments.
• Defined loss and leakage characteristics: Tan δ = 0.15 and specified leakage current allow predictable thermal and standby performance.
• Snap-in radial package: Robust mechanical mounting for power PCBs and simplified assembly with tray packing for production volumes.
• RoHS compliant: Meets environmental regulations for restricted substances.

Why Choose LGU2F391MELC?

The LGU2F391MELC positions itself as a reliable, high-voltage bulk capacitor for designers needing 315 V-rated, snap-in radial components with defined ripple-current capabilities and extended life at 105°C. Its combination of capacitance, sustained ripple handling, and mechanical snap-in packaging suits higher-voltage power electronics and industrial boards where predictable thermal and electrical behaviour is required.

Produced by Nichicon and available in mass production with tray packing, the LGU2F391MELC provides a clear, specification-driven option for engineering teams and procurement seeking robust, RoHS-compliant aluminum electrolytic capacitors for long-life, general-purpose power applications.

Request a quote or submit an inquiry for pricing, availability and lead-time information for LGU2F391MELC by providing the part number and required quantities.