LLS2W121MELA

The LLS2W121MELA is a snap-in terminal aluminum electrolytic capacitor from Nichicon’s LLS series, offering 120 µF capacitance at a 450 V rating. Designed for general-purpose power applications, it combines high-voltage capability with long endurance and measurable ripple-handling performance.

Key value propositions include 3000 hours of endurance at 85°C under rated ripple current, low-frequency and high-frequency ripple current specifications, and RoHS compliance—making it suitable for robust power filtering and energy-storage needs in commercial and industrial equipment.

Key Features

• Rated Capacitance and Tolerance: 120 µF nominal with a tolerance of -20% to +20% (measured at 120 Hz, 20°C).
• High Voltage Rating: 450 V rating for higher-voltage power rails and DC bus applications.
• Snap-In Mounting: Snap-in terminal type and radial can package for secure board mounting and straightforward assembly.
• Endurance: Rated for 3000 hours at 85°C with DC bias plus rated ripple current applied, meeting specified performance recovery after test.
• Ripple Current Performance: Low-frequency ripple current 1.09 A at 120 Hz and high-frequency ripple current 1.559 A at 50 kHz, supporting dynamic load conditions.
• Electrical Loss and Leakage: Dissipation factor (tan δ) of 0.2 measured at 20°C, 120 Hz, and a rated leakage current value of 690 µA.
• Operating Temperature Range: −25°C to +85°C suitable for standard commercial/industrial temperature environments.
• Compliance and Packaging: RoHS compliant and supplied in tray packing; product is in mass production.

Typical Applications

• General-purpose power filtering: Bulk and smoothing capacitance on 450 V DC rails where extended endurance at elevated temperature is required.
• Industrial power supplies: Energy-storage and ripple suppression in commercial and industrial power electronics with snap-in mounting for reliable PCB retention.
• High-voltage DC bus support: Applications that need 450 V rated capacitance combined with specified ripple current handling over long operating periods.

Unique Advantages

• Long-term rated endurance: 3000 hours at 85°C under rated ripple current helps preserve capacitance and dielectric performance over extended service life.
• High-voltage capability: 450 V rating enables use on higher-voltage DC buses without stacking multiple lower-voltage parts.
• Defined ripple-handling data: Specified ripple current values at 120 Hz and 50 kHz provide clear design inputs for thermal and lifetime calculations.
• Practical mounting form factor: Snap-in radial can simplifies board assembly and mechanical retention for through-hole power boards.
• Measured electrical characteristics: Specified tan δ and leakage current figures support predictable ESR-related behavior and standby loss budgeting.

Why Choose LLS2W121MELA?

LLS2W121MELA positions itself as a reliable, high-voltage aluminum electrolytic option for designs that require 120 µF at 450 V with documented endurance and ripple performance. Its combination of snap-in mounting, RoHS compliance, and tray packaging supports production-scale assembly and long-term deployment in general-purpose power equipment.

This part is well suited to engineers and procurement teams specifying capacitors for higher-voltage power supplies, DC bus smoothing, and industrial electronics where predictable lifetime, measured ripple capability, and clear electrical parameters are required.

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