LLS2G391MELB

The LLS2G391MELB is an aluminum electrolytic capacitor in a snap-in terminal can designed for general-purpose power applications. It delivers 390 µF capacitance at a 400 V rating in a compact radial, snap-in package (φ30×40 mm) and is supplied in tray packing for mass production use.

Engineered for systems that require bulk capacitance and sustained ripple handling, this RoHS-compliant Nichicon LLS series part combines high-voltage capability with a documented endurance profile to support reliable operation in industrial and power-electronics assemblies.

Key Features

• Capacitance & Voltage — 390 µF nominal capacitance rated for 400 V operation, with capacitance tolerance of −20% to +20% (measured at 120 Hz, 20°C).
• Snap‑in Can Package — Radial, can-style snap‑in terminals provide secure mechanical retention for through‑hole power boards and simplified assembly in high-volume production.
• Operating Temperature — Specified for operation from −25°C to +85°C, matching the LLS series’ standard temperature range for higher-voltage parts.
• Ripple Endurance — Designed to withstand rated ripple current for 3000 hours at 85°C, supporting continuous ripple handling in demanding applications.
• Ripple Current Ratings — Rated ripple current of 2.26 A at 120 Hz and 3.232 A at 50 kHz for managing AC stress in power circuits.
• Polarized Design — Conventional polarized aluminum electrolytic suitable for DC bulk, smoothing and energy‑storage roles.
• RoHS Compliant — Conforms to RoHS directives (2011/65/EU, (EU)2015/863), enabling use in regulated product lines.
• Compact Footprint — Physical dimensions of approximately 30×40 mm (L: 4 cm × D: 3 cm) for high-voltage bulk capacitance in a small chassis area.

Typical Applications

• Power supply smoothing — Bulk filtering and energy reserve in high-voltage DC power supplies where a 400 V rated capacitor is required.
• DC link capacitors for converters — Energy storage and ripple control in inverter and converter designs sized around 400 V systems.
• Industrial power electronics — General-purpose bulk capacitance in industrial control and power distribution equipment that requires sustained ripple endurance.

Unique Advantages

• High-voltage capacity: 400 V rating paired with 390 µF provides significant stored energy in a compact can for high-voltage power stages.
• Proven ripple endurance: Rated to withstand continuous ripple current for 3000 hours at 85°C, supporting longer service intervals under steady load.
• Assembly-friendly snap‑in terminals: Snap‑in mounting reduces handling time and improves mechanical retention in through‑hole production flows.
• Measurable ripple performance: Specified ripple current values at 120 Hz and 50 kHz enable designers to size capacitors against real circuit stress profiles.
• Regulatory readiness: RoHS compliance facilitates integration into assemblies subject to environmental regulations.
• Compact design footprint: φ30×40 mm dimensions offer a balance of capacitance and space efficiency for dense power boards.

Why Choose LLS2G391MELB?

LLS2G391MELB is positioned for designs that need substantial bulk capacitance at a 400 V rating combined with documented ripple endurance at elevated temperature. Its snap‑in, radial can format simplifies mechanical retention and high‑volume assembly while maintaining a compact board footprint.

With a −25°C to +85°C operating range, defined ripple current ratings, and RoHS compliance, this Nichicon LLS series part offers a verifiable specification set for engineers and procurement teams specifying reliable, general‑purpose high‑voltage capacitors for power-electronics applications.

Request a quote or contact sales to discuss availability, tray packing for volume orders, and pricing for LLS2G391MELB.