LLS2W181MELA

The LLS2W181MELA is a polarized aluminum electrolytic capacitor in a snap‑in terminal radial can designed to the Nichicon LLS series 85°C standard. It delivers 180 µF capacitance at a 450 V rating with snap‑in mounting for secure chassis or PC‑board installations.

Engineered for general‑purpose applications, the device is specified to withstand 3000 hours of rated ripple current at 85°C and is RoHS compliant. Key electrical and mechanical data include ±20% capacitance tolerance, -25°C to +85°C operating temperature (for 350–450 V), and documented ripple current performance at both low and high frequencies.

Key Features

• Electrical Core — 180 µF, 450 V: Rated capacitance 180 µF with a maximum rated voltage of 450 V and capacitance tolerance ±20% (120 Hz, 20°C).
• Endurance and Reliability: Meets endurance specification after D.C. bias plus rated ripple current applied for 3000 hours at 85°C (capacitance change within ±20%; tan δ ≤ 200% of initial; leakage ≤ initial specified value).
• Ripple Current Performance: Specified ripple current of 1.4 A at 120 Hz and 2.002 A at 50 kHz, supporting sustained AC stress under the rated conditions.
• Operating Temperature Range: Rated for -25°C to +85°C for 350–450 V parts; category and test limits are provided in the series datasheet.
• Mounting and Package: Snap‑in terminal type in a radial can package; physical size listed as L: 3.5 × D: 2.5 cm with a seated height maximum of 1.378 inch.
• Leakage Current Specification: Leakage current follows I ≤ 3√(CV) µA after 5 minutes' application of rated voltage at 20°C (C = µF, V = V), per the datasheet.
• Environmental Compliance: Compliant to the RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

• General Purpose: Suitable for general‑purpose designs that require a polarized snap‑in aluminum electrolytic capacitor rated at 450 V and 180 µF.
• General Purpose: Intended where long ripple endurance (3000 hours at 85°C under rated ripple) and snap‑in mounting are required.
• General Purpose: Applicable to designs needing documented ripple current performance at both low (120 Hz) and high (50 kHz) frequencies.

Unique Advantages

• High Voltage Capability: 450 V rating enables use in higher‑voltage general‑purpose circuits where elevated DC voltage handling is required.
• Documented Endurance: Endurance specification of 3000 hours at 85°C under rated ripple current provides a measurable reliability benchmark for designs.
• Broad Ripple Performance: Specified ripple currents at 120 Hz and 50 kHz give designers frequency‑range data to size capacitors against AC stress.
• Secure Snap‑In Mounting: Snap‑in terminal radial can package for reliable mechanical retention and straightforward installation in applicable assemblies.
• Regulatory Compliance: RoHS compliance supports deployment in regions and products requiring restricted‑substance conformity.

Why Choose LLS2W181MELA?

LLS2W181MELA from Nichicon’s LLS series pairs a high 450 V rating with 180 µF of capacitance in a snap‑in aluminum electrolytic package designed for general‑purpose use. Its endurance rating (3000 hours at 85°C under rated ripple) and specified ripple current values give designers verifiable performance data for selecting a capacitor that matches system stress and thermal conditions.

This part is appropriate for engineers and procurement teams specifying polarized, snap‑in aluminum electrolytic capacitors where clear electrical, mechanical, and environmental specifications (including RoHS compliance) are required for reliable product integration.

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