LLS2W121MELB

The LLS2W121MELB is a snap‑in terminal aluminum electrolytic capacitor rated at 450 V and 120 µF, designed for general‑purpose power applications. It combines a high voltage rating with a compact radial, can snap‑in package (φ30 × 25L / L: 2.5 cm × D: 3.0 cm) for reliable board mounting and high‑volume assembly (tray packing, mass production).

Engineered for operation from –25 °C to 85 °C, this polarized capacitor delivers specified ripple handling and endurance for applications that require sustained DC bias and ripple current at elevated temperatures.

Key Features

• High voltage rating: Rated voltage 450 V for applications that require elevated DC working voltage.
• Rated capacitance and tolerance: 120 µF capacitance with ±20% tolerance at 120 Hz, 20 °C.
• Snap‑in radial package: Radial, can snap‑in mounting provides sturdy board attachment suitable for mass production tray packing.
• Operating temperature and endurance: Rated for –25 °C to 85 °C and specified to withstand 3000 hours of rated ripple current at 85 °C.
• Ripple current performance: Rated ripple current of 1.12 A at 120 Hz and 1.602 A at 50 kHz for effective ripple handling and smoothing.
• Leakage current specification: Leakage defined as I ≤ 3√(C·V) µA after 5 minutes at 20 °C (C = µF, V = V), enabling predictable leakage behavior.
• Polarized construction: Polarized aluminum electrolytic design for DC filtering and energy storage in power circuits.
• RoHS compliant: Manufactured in compliance with RoHS requirements.

Typical Applications

• Power supply filtering: Smoothing DC bus and reducing ripple where a 450 V-rated capacitor is required.
• DC link and energy buffering: Bulk energy storage and decoupling in high‑voltage DC circuits that benefit from high capacitance and ripple handling.
• General‑purpose power electronics: Use in commercial and industrial boards requiring a robust snap‑in mounting and long‑term endurance at 85 °C.

Unique Advantages

• High voltage capability: 450 V rating enables use in higher‑voltage power rail designs without series stacking.
• Predictable endurance: Specified 3000 hours at 85 °C under rated ripple current gives design confidence for long‑term operation.
• Defined ripple performance: Explicit ripple current ratings at both low and high frequencies allow matching to power supply requirements.
• Compact snap‑in form factor: φ30 × 25L radial can with snap‑in terminals simplifies PCB retention and supports automated assembly in tray packing.
• Clear leakage specification: Leakage current defined by industry‑standard formula (I ≤ 3√CV) for predictable power loss budgeting.
• Regulatory compliance: RoHS compliance supports use in regulated product lines.

Why Choose LLS2W121MELB?

LLS2W121MELB positions itself as a reliable, high‑voltage aluminum electrolytic solution for general‑purpose power electronics that need 120 µF capacitance at 450 V. Its snap‑in radial package, defined ripple ratings (1.12 A at 120 Hz; 1.602 A at 50 kHz), and a 3000‑hour endurance at 85 °C make it suitable for designs that demand steady performance under DC bias and ripple stress.

This part is appropriate for engineers and procurement teams specifying capacitors for high‑voltage DC filtering, DC link buffering, and other general‑purpose power applications where predictable electrical behavior, RoHS compliance, and production‑friendly packaging are important.

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