LGX2H181MELC30

The LGX2H181MELC30 from Nichicon is a snap‑in terminal aluminum electrolytic capacitor designed for high‑voltage power applications. As part of the LGX series, this radial can capacitor offers a compact footprint and is optimized for long‑life operation at elevated temperatures.

Targeted use cases include rectifier stages in general inverters and smoothing/filtering in switching power supplies. Key value comes from its 500 V rating, 180 µF capacitance, and endurance rating that supports sustained ripple current at 105°C.

Key Features

• Electrical Performance — 180 µF capacitance at a 500 V rated voltage with ±20% tolerance; polarized design for DC power applications.
• Ripple Current Ratings — Rated ripple current of 1.1 A at 120 Hz and 1.573 A at 50 kHz, allowing designers to size the capacitor for both low‑ and high‑frequency ripple environments.
• Thermal & Long‑Life Assurance — Operates over −25°C to +105°C with long life assurance: endurance tested to 5,000 hours at 105°C under rated ripple conditions.
• Leakage Current Specification — Series leakage current follows I ≤ 3√(C·V) (µA) after 5 minutes at 20°C, providing a measurable bound for design calculations.
• Package & Mounting — Snap‑in radial can package for secure board mounting; compact size approximately L: 3 × D: 3.5 cm with a seated height of 1.181 inch.
• Regulatory Compliance — RoHS compliant (2011/65/EU, (EU)2015/863).

Typical Applications

• Rectifier Circuits for Inverters — Used for smoothing and energy storage in rectifier stages of general inverters.
• Switching Power Supplies — Provides bulk filtering and ripple handling in high‑voltage switching supplies.
• General‑Purpose Power Electronics — Suitable for high‑voltage DC smoothing and decoupling where a polarized electrolytic is required.

Unique Advantages

• Long‑Term Thermal Endurance: 5,000‑hour rating at 105°C ensures predictable life in elevated‑temperature power systems.
• High‑Voltage Capability: 500 V rating enables use in higher DC bus and rectifier circuits without series stacking.
• Compact Snap‑In Form Factor: Radial snap‑in can offers a space‑efficient footprint and robust board retention for power assemblies.
• Frequency Versatility: Published ripple current values at both 120 Hz and 50 kHz support designs across traditional and high‑frequency switching environments.
• Quantifiable Leakage Behavior: Leakage current bounded by the datasheet formula (I ≤ 3√CV) aids predictable end‑product performance.
• RoHS Compliant: Meets current RoHS requirements for regulatory alignment in commercial and industrial products.

Why Choose LGX2H181MELC30?

The LGX2H181MELC30 combines high voltage, substantial capacitance and a snap‑in radial package with long‑life assurance at elevated temperature. It is positioned for engineers designing power conversion equipment who need a dependable, measurable capacitor solution for rectifier and smoothing duties.

Its specification set—500 V, 180 µF, defined ripple current at multiple frequencies, and 5,000 hours endurance at 105°C—makes it appropriate for robust, long‑running power electronics designs where thermal endurance and predictable electrical behavior are required.

Request a quote or contact sales to discuss pricing, lead times, and sample availability for the LGX2H181MELC30.