LAS2G121MELA25

The LAS2G121MELA25 is a Nichicon LAS series aluminum electrolytic capacitor in a snap-in terminal package, offering 120 µF capacitance at 400 V rated voltage. It is designed for general-purpose power applications and for equipment operating in areas with voltage fluctuations, delivering compact size and elevated ripple-handling capability.

Key value propositions include a 105°C endurance rating with 2000 hours of applied rated ripple current, enhanced safety features for abnormal overvoltage conditions, and RoHS compliance for environmental conformity.

Key Features

• Capacitance & Voltage — 120 µF nominal capacitance with a 400 V rated voltage and polarization; capacitance tolerance ±20% at 120 Hz, 20°C.
• High-temperature Endurance — Specified to withstand 2000 hours of D.C. bias plus rated ripple current at 105°C. After the endurance test, capacitance change remains within ±20%, tan δ stays within 200% of initial, and leakage current remains at or below initial specification.
• Ripple-Current Performance — Rated ripple current of 760 mA at 120 Hz and 874 mA at 10 kHz. Frequency coefficients for rated ripple current (400–450 V range) are provided in the series data: 0.88 at 50 Hz, 0.90 at 60 Hz, 1.00 at 120 Hz, 1.10 at 1 kHz and 1.15 at 10 kHz.
• Safety Features — Pressure relief vent designed to operate under normal conditions without producing flames, ignition or dispersion of parts; safety performance includes defined limited DC current and test-voltage conditions by capacitance range.
• Compact Snap-in Package — Radial, can-type snap-in mounting in a φ25×25L (2.5 × 2.5 cm) package for PCB insertion; noted as smaller case size with higher ripple capability compared to the LAQ series.
• Operating Range & Compliance — Designed for a category temperature range of −25°C to +105°C and compliant with RoHS directives (2011/65/EU, (EU)2015/863).
• Leakage & Loss Characteristics — Leakage current specification: I ≤ 3√(C(µF)) µA after 5 minutes’ application of rated voltage at 20°C; tan δ 0.20 max at 120 Hz, 20°C (series characteristic).

Typical Applications

• General-purpose power filtering — Bulk smoothing and energy storage where a polarized 120 µF / 400 V capacitor is required on the DC side of power converters or regulators.
• Equipment in voltage-fluctuating areas — Suited for systems exposed to supply variability, offering improved safety features for abnormally excessive voltages and stable endurance at elevated temperature.
• High-ripple circuits — Applications that require elevated ripple-current capacity and compact mounting, leveraging the series’ higher ripple capability relative to LAQ.

Unique Advantages

• Endurance at Elevated Temperature — 2000-hour rated ripple-current endurance at 105°C gives designers predictable long-term behavior under high thermal stress.
• Measured Ripple Performance — Specified ripple-current ratings at both low and high frequency (120 Hz and 10 kHz) and published frequency coefficients allow engineers to size for real-world operating spectra.
• Enhanced Safety Design — Pressure relief vent and defined safety test conditions reduce risk under abnormal overvoltage events while avoiding dangerous outcomes like flames or part dispersion.
• Space-saving Snap-in Form Factor — Smaller case dimensions and snap-in mounting simplify PCB assembly where radial can snap-in components are preferred, while delivering higher ripple capability than comparable LAQ parts.
• Clear, verifiable specifications — Series-level datasheet provides quantitative endurance, leakage, tan δ and safety performance criteria to support reliability assessments.

Why Choose LAS2G121MELA25?

LAS2G121MELA25 combines 120 µF bulk capacitance at 400 V with a snap-in radial package optimized for applications that demand compact size, robust ripple handling and defined high-temperature endurance. Its safety-oriented design and RoHS compliance make it a practical choice for general-purpose power circuitry in environments where supply stability varies.

This capacitor suits engineers and procurement teams designing or supporting equipment that needs predictable performance over long operating periods at elevated temperatures, offering transparent series-level specifications to aid reliability planning and component selection.

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