LAR2E122MELC40

The LAR2E122MELC40 from Nichicon is an aluminum electrolytic capacitor in a snap‑in terminal can designed for general‑purpose applications. It delivers 1.2 mF (1200 µF) capacitance at a 250 V rated voltage with a compact radial can package (snap‑in mounting).

Engineered for elevated operating conditions, this capacitor is specified for operation from –40 °C to +105 °C with endurance and ripple performance characterized for demanding power environments.

Key Features

• Electrical Rating: 1.2 mF nominal capacitance with a 250 V rated voltage and ±20% tolerance, suitable for higher‑voltage DC energy storage and decoupling.
• High‑Temperature Endurance: Rated to withstand 2000 hours of application of rated ripple current at 105 °C, with capacitance change within ±20% after the endurance test.
• Ripple Current Performance: Specified ripple current of 2.3 A at 120 Hz (low frequency) and 3.45 A at 50 kHz (high frequency), with frequency coefficients provided for intermediate frequencies.
• Overvoltage Safety Design: Designed to reduce incidence of shorting when subjected to overvoltage conditions (rated voltage × 1.5); safety testing shows more than 60% passing rate under controlled overvoltage (limited current = 1 A) conditions.
• Temperature Range and Low‑Temperature Behavior: Operating range –40 °C to +105 °C, with documented impedance ratios and loss tangent (tan δ) limits at low temperatures and 120 Hz measurement conditions.
• Package & Mounting: Snap‑in radial can package (35 mm diameter × 40 mm length; L: 4 × D: 3.5 cm), polarized construction and snap‑in terminals for secure board mounting.
• Environmental Compliance: RoHS compliant (2011/65/EU, (EU)2015/863).

Typical Applications

• General‑purpose power supply components: Used where high‑voltage aluminum electrolytic capacitors are required for DC smoothing and energy storage in general electronic equipment.
• Industrial power electronics: Suitable for power circuitry that requires elevated temperature endurance and reliable ripple current handling.
• High‑frequency filtering: Applicable in designs needing documented ripple current specifications across low and high frequencies, with provided frequency coefficients to scale performance.

Unique Advantages

• Documented 105 °C endurance: 2000 hours rated ripple endurance at 105 °C provides verifiable performance for high‑temperature applications.
• Measured ripple current ratings: Explicit ripple current values at 120 Hz and 50 kHz simplify thermal and lifetime calculations for power designs.
• Overvoltage safety behavior: Engineered to reduce short incidence under 1.5× rated voltage stress, with pass criteria defined by vent operation and absence of short and flame.
• Compact snap‑in packaging: Radial, snap‑in can with clear dimensional data supports robust mechanical mounting and repeatable assembly in board designs.
• RoHS compliance: Meets 2011/65/EU and (EU)2015/863 requirements for restricted substances.

Why Choose LAR2E122MELC40?

The LAR2E122MELC40 is positioned for engineers seeking a high‑voltage aluminum electrolytic capacitor with validated endurance at elevated temperatures, clear ripple current specifications, and snap‑in mechanical mounting. Its combination of 250 V rating, 1.2 mF capacitance, and documented overvoltage safety behavior makes it suitable for general‑purpose power and industrial electronic designs that require predictable long‑term performance.

With RoHS compliance and datasheeted limits for leakage, tan δ, low‑temperature impedance, endurance, and shelf life, this capacitor provides the technical data needed for reliable BOM selection and thermal/lifetime planning.

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