LGG2W181MELA30

The LGG2W181MELA30 is a Nichicon LGG-series snap-in aluminum electrolytic capacitor specified at 180 µF and 450 V. Designed as an ultra-smaller-sized, snap-in terminal capacitor, it targets general-purpose high‑voltage power applications where compact size and reliable high-temperature endurance are required.

Key value comes from its 105°C endurance rating, strong ripple-current capability at both low and high frequency, and a compact φ25 × 30 mm can for space-constrained assemblies. RoHS-compliant construction and tray packing support high-volume production and automated assembly.

Key Features

• Capacitance & Voltage — 180 µF rated capacitance at 450 V for high-voltage energy storage and smoothing functions.
• Compact Snap‑In Package — φ25 × 30 mm radial, can snap-in package from the LGG series, described as “ultra-smaller-sized” to help with equipment downsizing.
• High Temperature Endurance — 2000 hours at 105°C with specified post-test limits (capacitance change within ±20%, tan δ ≤ 200% of initial, leakage current ≤ initial specified value).
• Ripple Current Capability — 790 mA at 120 Hz (low frequency) and 1.13 A at 100 kHz (high frequency) to handle AC ripple and reduce heating under load.
• Loss and Leakage — tan δ (DF) max 0.20 at 20°C and 120 Hz for the 450 V rating; measured leakage current shown as 850 µA.
• Tolerance & Polarization — ±20% tolerance at 120 Hz, 20°C; polarized electrolytic construction for DC applications.
• Manufacturing & Compliance — Tray packing and mass-production availability; compliant to RoHS directive.

Typical Applications

• Compact power supplies and converters — The LGG series’ smaller case size is suited to designs focused on equipment downsizing while retaining high-voltage capability.
• High-voltage DC bus filtering — 450 V rating and 180 µF capacitance make this capacitor applicable where high-voltage smoothing and energy buffering are required.
• Industrial power modules — High temperature endurance (2000 h at 105°C) and substantial ripple current ratings support continuous operation in demanding power electronics.

Unique Advantages

• High working voltage — 450 V rating enables use in high-voltage circuits without series stacking.
• Compact footprint for downsized equipment — LGG series describes a one-rank-smaller case size, allowing denser layouts or reduced enclosure size.
• Robust thermal endurance — Qualified for 2000 hours at 105°C with defined limits on capacitance change, tan δ and leakage current, supporting long-term stability in hot environments.
• Dual-frequency ripple handling — Specified ripple current at both 120 Hz and 100 kHz helps manage heating and ESR effects across common power-conversion frequencies.
• Production-ready packaging — Tray packing and mass-production status streamline procurement and assembly for volume manufacturing.
• Regulatory compliance — RoHS-compliant construction for restricted-substances requirements.

Why Choose LGG2W181MELA30?

LGG2W181MELA30 positions itself as a compact, production-ready solution for high-voltage, high-temperature power designs. Its combination of 180 µF capacitance at 450 V, measurable low and high-frequency ripple capability, and 2000‑hour endurance at 105°C makes it a reliable choice for engineers balancing performance, size, and manufacturability.

This part is well suited to designers of compact power supplies, industrial power modules, and other general-purpose high-voltage applications that require stable capacitance, controlled loss (tan δ), and production-friendly packaging. Backed by Nichicon’s LGG-series specifications, the LGG2W181MELA30 offers a verifiable specification set for long-term deployment.

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