LGU1E183MELA

The LGU1E183MELA is a snap-in aluminum electrolytic capacitor from Nichicon’s LGU series, rated at 18,000 µF and 25 V. It is supplied in a radial, snap-in can (φ25×50L) and is provided in tray packing for volume production.

Engineered for general-purpose power applications, the part offers high ripple-current capability, extended 105°C endurance, and robust leakage and dissipation characteristics suitable for demanding thermal environments.

Key Features

• High capacitance: 18,000 µF nominal capacitance with a tolerance of −20% to +20% (measured at 120 Hz, 20°C).
• Rated voltage: 25 V DC rating for a wide range of low-voltage power applications.
• High ripple-current capability: Low-frequency ripple current 3.54 A at 120 Hz and high-frequency ripple current 4.071 A at 50 kHz, supporting heavy ripple conditions.
• 105°C endurance: Specified life of 3000 h at 105°C with rated ripple current applied; capacitors are restored to 20°C for post-test measurements.
• Operating temperature range: −40°C to 105°C to accommodate elevated ambient and heated enclosures.
• Loss and leakage characteristics: tanδ (DF) of 0.4 (measured at 20°C, 120 Hz) and a typical leakage current of 2010 µA.
• Mechanical and packaging: Snap-in radial can (φ25×50L) for secure board mounting; supplied in tray packing and available in mass production quantities.
• RoHS compliant: Conforms to RoHS requirements for lead-restricted applications.

Typical Applications

• General-purpose power systems: Provides bulk capacitance and energy storage where 18,000 µF at 25 V and robust ripple capability are required.
• Power supply filtering: Supports filtering and smoothing tasks in low-voltage power supplies, leveraging the part’s high capacitance and ripple-current ratings.
• High-temperature environments: Suitable for equipment that must tolerate continuous operation up to 105°C for up to 3000 hours.

Unique Advantages

• Large capacitance in a compact package: 18,000 µF in a φ25×50L snap-in can reduces board area compared to multiple smaller capacitors.
• Designed for sustained ripple loading: Specified ripple-current ratings at both low and high frequencies help maintain performance under continuous AC stress.
• Extended high-temperature life: Endurance rating of 3000 h at 105°C provides predictable long-term behavior in elevated-temperature applications.
• Clear electrical characterization: Published tanδ and leakage-current figures (0.4 and 2010 µA respectively) allow engineers to model loss and standby drain precisely.
• Production-ready packaging: Tray packing and mass-production availability simplify procurement and assembly for volume builds.
• Regulatory compliance: RoHS compliance supports environmentally constrained designs.

Why Choose LGU1E183MELA?

LGU1E183MELA delivers a high-capacitance, high-ripple solution in a snap-in radial package built for continuous operation up to 105°C. Its specified endurance (3000 h at 105°C), measured loss factor, and quantified leakage current give designers the data needed to predict performance over the product life.

This part is well suited to engineers and procurement teams specifying general-purpose power capacitors where large capacitance, reliable ripple handling, and high-temperature endurance are key selection criteria. Tray packaging and mass-production status support straightforward integration into volume manufacturing.

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