LGX2W181MELA35

The LGX2W181MELA35 is a snap‑in terminal aluminum electrolytic capacitor from Nichicon's LGX series. It provides 180 µF capacitance at a 450 V rating in a smaller-sized radial can with snap‑in mounting, designed for high-voltage power electronics.

Engineered for long life at elevated temperatures, this part is suited for rectifier stages in general inverters and switching power supplies, delivering sustained ripple handling and stability up to 105°C.

Key Features

• Capacitance & Voltage — 180 µF capacitance with a 450 V rated voltage and ±20% tolerance, suitable for high-voltage filter and energy-storage roles.
• High‑Temperature Long Life — Long life assurance capable of withstanding 5000 hours at 105°C when subjected to rated ripple current, supporting sustained operation in hot environments.
• Ripple Current Performance — Rated ripple current of 920 mA at 120 Hz and 1.316 A at 50 kHz, providing measurable AC ripple handling for rectifier and smoothing applications.
• Package & Mounting — Radial can with snap‑in terminals for secure PCB mounting and simplified assembly in power racks and modules; smaller-sized footprint with dimensions L: 3.5 × D: 2.5 cm.
• Temperature Range & Stability — Operating range from −25°C to +105°C; series impedance stability and endurance specifications address performance under temperature stress.
• Leakage & Loss Characteristics — Leakage current defined by I ≤ 3√CV (μA) after 5 minutes at 20°C; series tanδ limits and stability criteria are specified in the LGX datasheet.
• Environmental Compliance — RoHS compliant (2011/65/EU, (EU)2015/863), supporting regulatory requirements for restricted substances.

Typical Applications

• Switching Power Supplies — Used in rectifier and smoothing stages to manage high-voltage ripple and bulk energy storage in switching regulators.
• General Inverters — Suited for rectifier circuits in inverter systems where long‑term high‑temperature endurance is required.
• General Purpose Power Electronics — Applicable wherever a high‑voltage, snap‑in aluminum electrolytic capacitor with extended 105°C life is needed.

Unique Advantages

• Extended High‑Temperature Endurance: 5000 hours rated life at 105°C under rated ripple current, enabling reliable operation in thermally demanding installations.
• High‑Voltage Capability: 450 V rating supports high-voltage filter and energy storage roles without additional series stacking.
• Measurable Ripple Handling: Specified ripple currents at 120 Hz and 50 kHz provide designers with quantifiable AC performance for rectifier and smoothing designs.
• Compact Snap‑in Packaging: Smaller-sized radial can with snap‑in terminals reduces board footprint while providing robust mechanical retention for power assemblies.
• Defined Electrical Stability: Datasheet‑level specifications for leakage current, tanδ, impedance vs. temperature, endurance, and shelf life allow predictable design margins.
• Regulatory Compliance: RoHS compliance simplifies integration into products targeting global markets with restricted substance requirements.

Why Choose LGX2W181MELA35?

LGX2W181MELA35 positions itself as a practical high‑voltage filter capacitor for engineers needing a compact snap‑in solution with verified long‑term performance at 105°C. Its combination of 180 µF at 450 V, specified ripple currents, and series endurance data makes it suitable for rectifier and smoothing roles in inverter and switching power supply designs.

This part benefits designs that demand measurable, datasheet-backed stability—offering clear leakage, tanδ, and endurance criteria—and supports regulatory compliance goals through RoHS alignment. It is well suited to power-electronics applications where long life, repeatable electrical behavior, and a compact snap‑in package are priorities.

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