LGU2E681MELC

The LGU2E681MELC is a snap‑in terminal aluminum electrolytic capacitor from Nichicon’s LGU series, designed for general‑purpose power applications. It offers 680 µF capacitance at a 250 V rating in a compact φ35 × 30 mm can with snap‑in mounting and tray packing for production environments.

Engineered for demanding thermal and ripple conditions, this capacitor delivers high ripple current capability and a rated endurance of 3000 hours at 105°C, making it suitable where sustained performance and long operating life under load are required.

Key Features

• Capacitance & tolerance — 680 µF with ±20% tolerance measured at 120 Hz, 20°C, providing predictable bulk energy storage for smoothing and decoupling.
• Rated voltage — 250 V DC rating for mid‑voltage power systems and DC link applications.
• High temperature endurance — Specified for operation from −40°C to 105°C and endurance of 3000 hours at 105°C with rated ripple current applied.
• Ripple current capability — 2.0 A at 120 Hz (low frequency) and 3.0 A at 50 kHz (high frequency), enabling effective filtering under continuous AC ripple stress.
• Loss and leakage — Low loss tangent (tan δ) of 0.15 measured at 20°C, 120 Hz, and leakage current of 1,230 µA after voltage application.
• Robust package & mounting — Radial, snap‑in can (φ35 × 30 mm) for secure PCB mounting in high‑current assemblies; supplied in tray packing for production handling.
• Regulatory status — RoHS compliant.

Typical Applications

• Power supply filtering — Bulk smoothing and output filtering in 250 V DC power supplies where high capacitance and sustained ripple handling are required.
• Power conversion and DC link — Energy storage and ripple absorption for converters and inverters operating within the 250 V range, benefiting from the component’s high ripple current rating and 105°C endurance.
• Industrial equipment — General‑purpose use in industrial power modules and control systems that demand long life at elevated temperatures.

Unique Advantages

• Long‑life performance: Rated for 3000 hours at 105°C under rated ripple current, delivering predictable lifetime behavior in high‑temperature installations.
• High ripple handling: 2 A (120 Hz) and 3 A (50 kHz) ripple current ratings reduce temperature rise and improve system reliability under continuous ripple stress.
• Compact, production‑ready package: φ35 × 30 mm snap‑in can in tray packing simplifies PCB mounting and assembly for medium‑volume production runs.
• Measurable electrical characteristics: Specified tan δ and leakage current values (tan δ = 0.15 at 20°C, 120 Hz; leakage = 1,230 µA) provide clear design margins for loss and standby current budgeting.
• Wide operating temperature: −40°C to 105°C rating supports use across varied thermal environments without additional derating in many designs.

Why Choose LGU2E681MELC?

LGU2E681MELC is positioned for engineers and purchasers seeking a robust, mid‑voltage aluminum electrolytic capacitor that combines high capacitance, strong ripple current capability, and long endurance at elevated temperatures. Its snap‑in radial package and tray packing facilitate reliable assembly in power electronics and industrial applications.

This part is well suited to designs that require sustained thermal performance and predictable electrical behavior over time, offering clear specification data (capacitance, tan δ, leakage, ripple current, and rated life) to support engineering validation and procurement decisions.

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