LGG2G681MELC40

The LGG2G681MELC40 is a snap‑in terminal aluminum electrolytic capacitor designed for high‑voltage, general‑purpose power applications. It combines a 400V rating with 680µF capacitance in a compact radial can (φ35 × 40 mm) and is optimized for equipment downsizing while delivering robust ripple handling and long life at elevated temperatures.

Specifically engineered for demanding power environments, this polarized capacitor offers high low‑ and high‑frequency ripple current capability, low leakage, and a 2000‑hour endurance at 105°C—making it suitable for applications that require steady bulk capacitance under continuous DC bias and thermal stress.

Key Features

• Capacitance and Tolerance — 680 µF nominal capacitance with ±20% tolerance at 120 Hz and 20°C.
• High Voltage Rating — Rated for 400 V DC for use in higher‑voltage power rails and energy storage stages.
• Temperature Range and Endurance — Operating temperature from −25°C to +105°C with a 2000 hour life specification at 105°C under rated DC bias plus ripple current.
• Ripple Current Performance — 1.8 A at 120 Hz (low frequency) and 2.574 A at 100 kHz (high frequency) to support smoothing and decoupling under varying switching conditions.
• Low Loss and Leakage — Tangent of loss angle (tan δ) of 0.15 (max) at 20°C and 120 Hz, and a leakage current of 1560 µA as specified for this part.
• Package and Mounting — Snap‑in radial can (φ35 × 40 mm) for secure board mounting and space‑efficient placement; supplied in tray packing for mass production handling.
• Compliance — RoHS‑compliant construction.

Typical Applications

• General‑Purpose Power Supplies — Bulk smoothing and energy storage on 400 V DC rails where high capacitance and reliable ripple handling are required.
• Compact Equipment Designs — Suited for equipment downsizing where a smaller case footprint is needed without sacrificing voltage or ripple capability.
• High‑Temperature Power Systems — Long endurance at 105°C supports continuous operation in thermally demanding environments.

Unique Advantages

• 400 V / 680 µF in a compact can — Delivers substantial energy storage in a φ35 × 40 mm radial package to help reduce board area for high‑voltage designs.
• High ripple capability across frequencies — Rated ripple currents at both 120 Hz and 100 kHz address performance needs in both line‑frequency and switching environments.
• Designed for elevated temperature endurance — 2000 h life at 105°C under rated conditions provides predictable long‑term behavior in hot enclosures.
• Low loss and controlled leakage — tan δ ≤ 0.15 and specified leakage current support stable performance and predictable DC loading.
• Production‑ready packaging — Tray packing and mass production status simplify procurement and assembly for volume designs.
• RoHS compliant — Meets environmental requirements for lead‑free manufacturing flows.

Why Choose LGG2G681MELC40?

The LGG2G681MELC40 positions itself as a dependable high‑voltage aluminum electrolytic solution for engineers needing substantial capacitance, robust ripple performance, and proven endurance in a reduced case size. Its combination of 400 V rating, 680 µF capacitance, multi‑frequency ripple capability, and 2000‑hour life at 105°C makes it well suited for designers targeting compact, reliable power subsystems.

This part is appropriate for procurement in mass production thanks to tray packing and series‑level design considerations that support equipment downsizing without compromising on thermal or electrical performance. Choose the LGG2G681MELC40 when you need verifiable specs for long‑term, high‑voltage power applications.

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