LAR2E391MELA30

The LAR2E391MELA30 is a Nichicon LAR series aluminum electrolytic capacitor in a snap‑in, radial can package. It provides 390 µF capacitance at a rated voltage of 250 V with polarized construction and snap‑in terminal mounting for board assembly.

Designed for general‑purpose electronic equipment, this capacitor emphasizes high‑temperature endurance and safety: it endures rated ripple current for 2000 hours at 105 °C and incorporates characteristics that reduce incidence of shorting under overvoltage conditions. The part is RoHS compliant.

Key Features

• Capacitance & Voltage — 390 µF rated capacitance at 250 V with ±20% tolerance, suitable where substantial bulk capacitance is required in a single component.
• High‑Temperature Endurance — Endurance specification: withstands 2000 hours of rated ripple current at 105 °C when used within specified conditions.
• Improved Overvoltage Safety — LAR series design reduces short incidence when subjected to overvoltage (rated voltage × 1.5) under limited current conditions.
• Ripple Current Performance — Rated ripple current of 1.3 A at 120 Hz (low frequency) and 1.95 A at 50 kHz (high frequency); frequency coefficients for ripple-current adjustment are provided by the LAR series datasheet.
• Operating Temperature Range — Specified for –40 °C to +105 °C, covering elevated operating temperatures typical of demanding general‑purpose applications.
• Mounting & Package — Radial, snap‑in can package (φ25 × 30 mm nominal dimensions; seated height information available in datasheet) for secure board mounting and mechanical stability.
• Leakage Current Specification — Leakage current follows I ≤ 3√CV (µA) after 5 minutes at 20 °C, providing a predictable leakage performance baseline.
• RoHS Compliance — Conforms to RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

• General Purpose Electronics — Suitable for general‑purpose circuits requiring a 250 V, 390 µF snap‑in electrolytic capacitor.
• High‑Temperature Environments — Intended for equipment and assemblies that require sustained performance up to 105 °C.
• Board‑Level Snap‑In Mounting — Designed for applications benefitting from snap‑in radial can mounting for mechanical retention and ease of assembly.

Unique Advantages

• Long Endurance at Elevated Temperature — Rated to withstand 2000 hours of ripple current at 105 °C, helping designs maintain capacitance and reliability under prolonged thermal stress.
• Safer Overvoltage Behavior — Series design reduces incidence of shorts when exposed to 1.5× rated voltage under limited current, improving operational safety margins.
• Clear Ripple‑Current Guidance — Published ripple current values at 120 Hz and 50 kHz plus frequency coefficients enable precise thermal and ripple budgeting in designs.
• Predictable Leakage Characteristics — Leakage current defined by I ≤ 3√CV after initial conditioning, simplifying end‑of‑life and idle‑state calculations.
• Compact Snap‑in Form Factor — Radial, snap‑in can (φ25 × 30 mm nominal) offers a compact footprint with reliable board retention for bulk capacitance requirements.
• Regulatory Compliance — RoHS conformity supports inclusion in equipment aimed at regulated markets.

Why Choose LAR2E391MELA30?

The LAR2E391MELA30 is positioned for engineers and buyers seeking a robust, general‑purpose electrolytic capacitor with documented high‑temperature endurance and conservative safety behavior under overvoltage conditions. Its combination of 250 V rating, 390 µF capacitance, snap‑in radial can package, and clear ripple‑current and leakage specifications makes it a practical choice for designs that require reliable bulk capacitance and predictable performance up to 105 °C.

As part of Nichicon’s LAR series, this capacitor offers traceable datasheet performance parameters (endurance, leakage, tan δ, and frequency coefficients) that support engineering validation, BOM decisions, and long‑term deployment in applicable general‑purpose equipment.

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