LGGW6391MELB40

The LGGW6391MELB40 is a snap‑in terminal aluminum electrolytic capacitor from Nichicon's LGG series, offering 390 µF capacitance at a 420 V rating. Designed for general‑purpose use in equipment requiring high voltage bulk capacitance, it combines a compact snap‑in can package with a 105°C endurance rating for reliable performance in demanding environments.

As part of the LGG family, this part is optimized for equipment downsizing with a smaller case profile and is RoHS compliant. It is supplied in tray packing for efficient mass production assembly.

Key Features

• High Voltage Capability — Rated at 420 V, suitable for applications requiring high DC voltage bulk capacitance.
• Bulk Capacitance — 390 µF nominal capacitance with ±20% tolerance, providing substantial energy storage and smoothing capacity.
• Snap‑In Mounting — Radial snap‑in can package for secure PCB installation and streamlined through‑hole assembly.
• 105°C Endurance — Rated to operate up to 105°C with a specified lifetime of 2000 hours at 105°C under DC bias plus rated ripple current.
• Ripple Current Handling — Specified ripple currents of 1.61 A at 120 Hz and 2.302 A at 100 kHz enable effective performance under AC ripple conditions.
• Polarized Electrolytic — Polar construction for DC applications where polarized bulk capacitance is required.
• Environmental Compliance — RoHS compliant, supporting regulated manufacturing and end‑product requirements.

Typical Applications

• General‑Purpose Power Supplies — Bulk smoothing and energy storage in high‑voltage DC power supplies, leveraging 390 µF at 420 V and rated ripple current capability.
• Industrial Equipment — High‑voltage filter and energy reservoir in commercial and industrial systems that require components rated to 105°C and 2000 hours endurance.
• Rectifier and DC Link Circuits — Use where polarized, high‑voltage bulk capacitance is needed to stabilize DC rails and support transient loads.

Unique Advantages

• Compact, Down‑Sized Case — LGG series offers a smaller case profile compared to the previous series, aiding equipment miniaturization without sacrificing capacitance.
• High‑Temperature Endurance — 2000 hours at 105°C under rated conditions provides predictable life performance in elevated temperature environments.
• Robust Ripple Performance — Defined ripple current ratings at both 120 Hz and 100 kHz support stable operation across common power‑conversion frequencies.
• Secure Snap‑In Installation — Snap‑in terminal design simplifies mechanical retention and assembly for through‑hole production lines.
• Regulatory Compliance — RoHS compliance facilitates use in regulated product designs and global markets.
• Measured Leakage Characteristics — Leakage current specification follows I ≤ 3√CV after rated voltage, enabling predictable standby and filtering behavior.

Why Choose LGGW6391MELB40?

LGGW6391MELB40 delivers a balance of high voltage capability, substantial bulk capacitance, and high‑temperature endurance in a snap‑in aluminum can tailored for equipment downsizing. Its defined ripple current ratings and 2000‑hour life at 105°C make it suitable for designers seeking predictable long‑term performance in general‑purpose high‑voltage DC circuits.

This part is a practical choice for engineers and procurement teams building industrial or commercial power hardware that requires RoHS compliance, secure snap‑in mounting, and the reliability characteristics documented for the LGG series.

To request a quote or submit a procurement inquiry for LGGW6391MELB40, please contact sales with your quantity and delivery requirements and reference the part number.