LGX2H181MELB35

The LGX2H181MELB35 is an aluminum electrolytic capacitor in a snap‑in radial can designed for high‑temperature, long‑life power applications. It is a polarized 180 µF, 500 V capacitor from Nichicon's LGX series with a smaller-sized footprint (L: 3.5 × D: 3 cm).

Engineered for rectifier circuits in general inverters and switching power supplies, this part is built to withstand rated ripple current for 5000 hours at 105°C and is RoHS compliant.

Key Features

• Capacitance & Voltage — 180 µF nominal capacitance with a 500 V rated voltage provides energy storage for high‑voltage power circuits.
• High‑Temperature Long Life — Long life assurance series specified to withstand 5000 hours of rated ripple current at 105°C.
• Snap‑In Radial Can Package — Snap‑in mounting type in a radial can for secure PCB installation; smaller-sized dimensions (L: 3.5 × D: 3 cm).
• Operating Temperature Range — Specified for operation from −25°C to +105°C.
• Ripple Current Ratings — Rated ripple current of 1.04 A at 120 Hz and 1.487 A at 50 kHz for ripple handling across typical power frequencies.
• Leakage and Loss Characteristics — Leakage current defined as I ≤ 3√CV (µA) after 5 minutes at 20°C; tan δ limits applied (tan δ max. 0.20 for 450–500 V at 120 Hz, 20°C).
• Tolerance & Polarization — Capacitance tolerance ±20%; polarized device suitable for DC power circuits.
• Environmental Compliance — Compliant with RoHS (2011/65/EU, (EU)2015/863).

Typical Applications

• Rectifier circuits for general inverters — Designed for use in rectifier stages where high voltage and long operating life at elevated temperatures are required.
• Switching power supplies — Suited for smoothing and energy storage in switching power supply designs.
• General-purpose power electronics — Applicable where a 180 µF/500 V polarized, snap‑in capacitor with long‑life and RoHS compliance is required.

Unique Advantages

• Long life under stress — Specified endurance of 5000 hours at 105°C with rated ripple current supports extended operation in high‑temperature power environments.
• High voltage capability — 500 V rating enables application in higher-voltage DC bus and rectifier circuits without series stacking.
• Compact snap‑in form — Smaller-sized radial can (L: 3.5 × D: 3 cm) with snap‑in mounting simplifies board placement and mechanical retention.
• Quantified ripple performance — Provided ripple current figures at 120 Hz and 50 kHz allow designers to match the capacitor to expected ripple loads.
• Defined leakage and dissipation limits — Leakage current formula and tan δ specifications give predictable electrical behavior for reliable designs.
• Regulatory compliance — RoHS compliance addresses environmental substance requirements for global assemblies.

Why Choose LGX2H181MELB35?

As part of Nichicon’s LGX long‑life assurance series, the LGX2H181MELB35 combines a 180 µF capacitance with a 500 V rating in a compact snap‑in radial can engineered for elevated temperatures. Its 5000‑hour endurance at 105°C, defined ripple current ratings, and leakage/tan δ specifications provide the data designers need to select a capacitor for demanding inverter and switching power supply applications.

This part is suited for engineers and procurement teams building high‑voltage power electronics that require predictable long‑term performance, compact packaging, and RoHS compliance from a reputable series manufacturer.

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