LLG2W681MELC45

The LLG2W681MELC45 is a snap-in terminal aluminum electrolytic capacitor from Nichicon's LLG series. It provides 680 µF capacitance at a 450 V rating in a compact, radial can snap‑in package and is intended for general‑purpose electronic applications.

Designed one rank smaller than the LLS series to support equipment downsizing, the LLG2W681MELC45 combines high-voltage capacity with RoHS compliance for use in commercial and industrial designs requiring a compact, high‑voltage electrolytic solution.

Key Features

• Electrical Rating — 680 µF nominal capacitance at 450 V rated voltage with polarization suitable for DC applications.
• Capacitance Tolerance — Specified tolerance of -20% to +20% (±20% at 120 Hz, 20°C).
• Mounting & Package — Snap‑in terminal, radial can snap‑in package for PCB installation; physical size L: 4.5 × D: 3.5 cm with a maximum seated height of 1.772 inch.
• Temperature Range — Operating temperature range specified from -25°C to 85°C for the 400–450 V ratings.
• Endurance — Rated for 2000 hours at 85°C under rated voltage and ripple conditions per the LLG series endurance specification.
• Ripple Current Capability — Rated ripple current of 2.82 A at 120 Hz and 4.033 A at 100 kHz to support filtering and smoothing tasks at low and high frequencies.
• Regulatory — Compliant with the RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

• General‑purpose electronics — Provides high‑voltage capacitance where a general‑purpose aluminum electrolytic capacitor is required.
• Equipment downsizing — One rank smaller case size than LLS to help reduce enclosure and board space.
• PCB snap‑in assemblies — Snap‑in radial can package for straightforward mechanical mounting in board-level power circuits.

Unique Advantages

• Compact high‑voltage capacity: 680 µF at 450 V delivers substantial bulk capacitance in a compact LLG series package.
• Space‑saving form factor: One rank smaller case than LLS supports designs targeting reduced footprint and enclosure size.
• Designed for continuous thermal stress: Endurance rated to 2000 hours at 85°C under rated conditions for predictable long‑term performance.
• Dual‑frequency ripple handling: Specified ripple current values at 120 Hz (2.82 A) and 100 kHz (4.033 A) provide data points for both low‑ and high‑frequency filtering design.
• RoHS compliant: Meets 2011/65/EU and (EU)2015/863 requirements for restricted substances.
• Polarized design: Intended for DC power applications where polarized electrolytic capacitance is required.

Why Choose LLG2W681MELC45?

The LLG2W681MELC45 positions itself as a compact, high‑voltage aluminum electrolytic option within Nichicon’s LLG series, offering 680 µF at 450 V in a snap‑in radial can package. Its reduced case size relative to the LLS series helps address equipment downsizing goals while retaining endurance performance (2000 h at 85°C) and specified ripple current capability.

This part is suitable for designers and procurement teams seeking a verified, RoHS‑compliant, general‑purpose electrolytic capacitor for board‑level power filtering and energy storage where a compact, snap‑in high‑voltage solution is required.

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