LLS2W181MELZ

The LLS2W181MELZ from Nichicon is a snap‑in terminal aluminum electrolytic capacitor in the LLS series, rated 180 µF at 450 V with ±20% tolerance. It is a general‑purpose power capacitor designed for applications that require high voltage handling and reliable ripple performance in a snap‑in radial can package.

Key value propositions include a 3000‑hour endurance at 85°C, specified low‑frequency and high‑frequency ripple current capability, and RoHS compliance—making the part suitable for repeatable mass production installation using tray packing.

Key Features

• Electrical Rating — 180 µF capacitance at a 450 V rated voltage with ±20% tolerance (measured at 120 Hz, 20°C).
• Ripple Current Performance — Low frequency ripple current of 1.32 A at 120 Hz and high frequency ripple current of 1.888 A at 50 kHz, supporting demanding AC ripple conditions.
• Loss and Leakage — Specified tangent of loss angle (tan δ) of 0.2 at 20°C and 120 Hz, and a leakage current value of 850 µA for predictable loss and leakage behavior.
• Endurance and Temperature — Rated for 3000 hours of endurance at 85°C; operating temperature range is −25°C to +85°C.
• Packaging & Mounting — Snap‑in, radial can package (φ22 × 45 mm), supplied in tray packing for production throughput and consistent board mounting.
• Compliance — RoHS‑compliant construction where required for regulatory conformity.

Typical Applications

• General‑purpose power systems — Provides bulk capacitance and ripple handling for general‑purpose power electronics that require a 450 V, 180 µF snap‑in solution.
• High‑voltage DC filtering — Suitable where a high DC voltage rating (450 V) and defined ripple current capability are required in a snap‑in form factor.
• Production assemblies — Tray packing and snap‑in mounting support repeatable insertion and assembly for mass production workflows.

Unique Advantages

• High voltage capability: 450 V rated voltage enables use in higher DC bus and power line applications without upsizing capacitance or board footprint.
• Defined ripple endurance: Specified low‑ and high‑frequency ripple currents (1.32 A at 120 Hz and 1.888 A at 50 kHz) let designers size capacitors to expected system ripple loads.
• Long endurance at elevated temperature: 3000 hours at 85°C provides a clear reliability specification for thermal stress planning and life‑cycle calculations.
• Compact snap‑in packaging: φ22 × 45 mm radial can with snap‑in terminals simplifies board retention and mechanical stability in production assemblies.
• Predictable electrical characteristics: Specified tan δ (0.2 at 20°C/120 Hz) and leakage current (850 µA) enable accurate modeling of losses and standby behavior.
• RoHS compliant: Meets RoHS directive requirements for lead‑free production environments.

Why Choose LLS2W181MELZ?

LLS2W181MELZ is positioned as a robust, general‑purpose aluminum electrolytic capacitor for designs that require a 450 V rating, substantial bulk capacitance (180 µF), and clear endurance and ripple current specifications. Its snap‑in radial can and tray packing support efficient assembly and mechanical stability in production environments.

This part is well suited to engineers and purchasers who need a verifiable combination of high voltage handling, specified ripple capabilities, and a defined 3000‑hour endurance at 85°C—backed by Nichicon’s LLS series specifications and RoHS compliance.

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