LLS2E391MELY

The LLS2E391MELY from Nichicon is a snap-in terminal aluminum electrolytic capacitor in the LLS series, rated at 390 µF and 250 V. It is a general-purpose radial, can-type snap-in capacitor designed for applications that require polarized bulk capacitance with a compact snap-in mounting.

Key value propositions include long endurance under ripple stress (3000 hours at 85°C), measurable ripple-current capability at both low and high frequencies, and RoHS-compliant construction for standard electronic equipment designs.

Key Features

• Capacitance & Voltage — 390 µF nominal capacitance with a 250 V rated voltage and a capacitance tolerance of −20% to +20%.
• Snap-In Radial Package — Radial, can-type snap-in terminal mounting for secure vertical PCB mounting; supplied in tray packing for boardroom- or production-level handling.
• Temperature & Endurance — Operating temperature range −40°C to +85°C and rated life of 3000 hours at 85°C under rated ripple current conditions.
• Ripple Current Capability — Low-frequency ripple current 1.92 A at 120 Hz and high-frequency ripple current 2.88 A at 50 kHz, supporting AC ripple handling across typical power frequencies.
• Electrical Loss & Leakage — Dissipation factor tanδ of 0.15 (measured at 20°C, 120 Hz) and specified leakage current of 930 µA.
• Polarized Device — Polarized aluminum electrolytic construction suitable for DC applications requiring polarized bulk capacitance.
• Regulatory Status — RoHS compliant.

Typical Applications

• General-purpose electronic equipment — Provides bulk capacitance and energy storage for a wide range of industrial and commercial electronic platforms that require polarized electrolytic capacitors.
• Power supply filtering — Used where DC bus smoothing and ripple attenuation are required within the capacitor's voltage, temperature, and ripple-current ratings.
• Assembly-friendly mounting — Snap-in terminal format supports secure mechanical retention for vertical PCB installations in production environments.

Unique Advantages

• Proven endurance under ripple stress: Rated for 3000 hours at 85°C with rated ripple current applied, providing predictable lifetime behavior for thermal and ripple-loaded designs.
• Dual-frequency ripple ratings: Specified ripple currents at 120 Hz (1.92 A) and 50 kHz (2.88 A) enable designers to evaluate performance across both low- and high-frequency ripple scenarios.
• Low dissipation factor: tanδ of 0.15 (20°C, 120 Hz) helps quantify ESR-related losses for thermal and efficiency calculations.
• Compact snap-in form factor: φ20 × 40 mm size in a radial snap-in can simplifies board layout for vertical mounting and mechanical retention.
• RoHS compliance: Meets RoHS requirements for designs that require restricted substance conformity.
• Production-ready availability: Listed as mass production, supplied in tray packing for assembly throughput and inventory planning.

Why Choose LLS2E391MELY?

LLS2E391MELY is positioned as a reliable, general-purpose snap-in aluminum electrolytic capacitor that combines measurable ripple handling, defined loss characteristics, and long endurance at elevated temperature. Its 390 µF / 250 V rating, polarized snap-in can package, and 3000-hour endurance at 85°C make it suitable for designers specifying stable bulk capacitance with quantifiable ripple and leakage behavior.

This component is appropriate for engineers and procurement teams designing and sourcing capacitors for industrial and commercial electronic equipment where RoHS compliance, tray packing, and predictable life/ripple specifications are required.

If you would like pricing, availability, or to submit a quote request for LLS2E391MELY, please request a quote or submit a quotation request and our team will respond with current lead-time and order options.