LGGW6681MELC45

The LGGW6681MELC45 is a snap‑in terminal aluminum electrolytic capacitor from Nichicon's LGG series. It delivers 680 µF capacitance at a 420 V rating in a compact φ35 × 45 mm radial can optimized for equipment downsizing.

Designed for general‑purpose electronic equipment, this part combines high‑voltage capability, robust ripple handling and extended endurance (2000 hours at 105°C) to support power assemblies that require a compact, high‑voltage electrolytic solution.

Key Features

• Electrical Performance — 680 µF nominal capacitance at 420 V with ±20% tolerance; tangent of loss angle (tanδ) specified at 0.15 (measured at 20°C, 120 Hz) and leakage current rated at 1600 µA.
• Ripple Handling — Rated low‑frequency ripple current of 2.05 A at 120 Hz and high‑frequency ripple current of 2.932 A at 100 kHz, supporting both mains‑frequency and higher‑frequency applications.
• Thermal Endurance — Operating temperature range −25°C to +105°C with an endurance rating of 2000 hours at 105°C under DC bias plus rated ripple current conditions.
• Compact Snap‑In Package — Radial, snap‑in can with dimensions φ35 × 45 mm and tray packing for assembly; one rank smaller case sizing compared to the LGN series to aid equipment downsizing.
• Low‑temperature Stability — For 400–450 V ratings, impedance stability is specified with Z(−25°C)/Z(+20°C) up to 8 (measurement at 120 Hz), supporting cooler operating conditions.
• Regulatory & Production Status — RoHS compliant and listed as mass production, suitable for volume manufacturing environments.

Typical Applications

• General‑purpose electronic equipment — Acts as a high‑voltage bulk or smoothing capacitor in assemblies where a 420 V rating and compact snap‑in mounting are required.
• Compact power assemblies — Sized to support equipment downsizing while retaining endurance at elevated temperatures (2000 h at 105°C).
• Chassis or panel mounted power modules — Snap‑in terminals and radial can package simplify secure mounting in modular power designs.

Unique Advantages

• High‑voltage capability: 420 V rating enables use in higher‑voltage power circuits without up‑rating multiple components.
• Strong ripple performance: Specified ripple currents at both 120 Hz and 100 kHz support a range of power conversion topologies and switching frequencies.
• Compact footprint: φ35 × 45 mm can and snap‑in mounting offer a smaller case option to reduce board or chassis space compared to larger family members.
• Extended endurance at elevated temperature: 2000 hours at 105°C gives predictable aging behavior for designs exposed to sustained thermal stress.
• Production readiness and compliance: RoHS compliance and mass production status help support manufacturer scaling and regulatory requirements.

Why Choose LGGW6681MELC45?

LGGW6681MELC45 is positioned for designs that require a compact, high‑voltage aluminum electrolytic with documented ripple capability and endurance at 105°C. Its snap‑in radial can and smaller case sizing make it well suited for compact power assemblies and modular chassis implementations.

Backed by Nichicon's LGG series specifications and mass‑production availability, this capacitor provides a verifiable combination of capacitance (680 µF), voltage (420 V), ripple handling, and thermal endurance for designers targeting reliable, space‑efficient power designs.

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