LGM2W181MELZ30

The LGM2W181MELZ30 is a snap‑in terminal aluminum electrolytic capacitor from Nichicon’s LGM series designed for high‑voltage, general‑purpose applications. It offers a 180 µF capacitance at 450 V in an ultra‑smaller case that is one rank smaller than the LGL series, making it well suited for equipment downsizing where board space and voltage handling are required.

Engineered for elevated operating temperatures up to 105°C and rated for 2,000 hours of endurance at that temperature, this component addresses high‑stress power applications that demand stable capacitance, controlled leakage and reliable ripple handling.

Key Features

• Electrical Performance — 180 µF nominal capacitance at a 450 V rating with ±20% tolerance, suitable for high‑voltage energy storage and smoothing.
• Ripple and Loss Characteristics — Rated ripple current 470 mArms at 120 Hz and a specified high‑frequency ripple value of 672.1 mA at 50 kHz; tangent of loss angle (tan δ) ≤ 0.20 at 120 Hz, 20°C.
• Leakage Current — Leakage current conforms to I ≤ 3√(C·V) (μA) after 5 minutes at 20°C; the part listing shows a typical leakage current entry of 0.85 mA for this size.
• Thermal and Endurance — Rated for operation from −25°C to +105°C with endurance tested at 2,000 hours at 105°C under rated voltage and ripple conditions.
• Low‑temperature Stability — Impedance stability characterized by Z(−25°C)/Z(+20°C) ≤ 8 at the 450 V rating.
• Package & Mounting — Radial, snap‑in can package (size approximately 3.0 cm length × 2.2 cm diameter) for secure PCB snap‑in mounting and compact assembly.
• Environmental Compliance — Compliant with the RoHS directive (2011/65/EU, (EU)2015/863).
• Space‑saving Form Factor — Ultra‑smaller sized case (one rank smaller than LGL) intended to simplify equipment downsizing without sacrificing voltage capability.

Typical Applications

• High‑voltage power supplies — Bulk smoothing and energy storage on 450 V rails where high working voltage and stable capacitance at elevated temperatures are required.
• Industrial power equipment — Filtering and ripple suppression in industrial converters and power modules operating near 105°C environments.
• Power conversion modules — DC link and smoothing applications in AC/DC and DC/DC converters that benefit from snap‑in mounting and compact case size.
• Equipment downsizing projects — Designs that require a smaller case footprint while retaining 450 V capability and robust endurance characteristics.

Unique Advantages

• High‑voltage capability: 450 V rating enables use on elevated voltage rails without series stacking or complex workarounds.
• Compact, space‑efficient size: One rank smaller than LGL, supporting board‑level downsizing and tighter layouts.
• High‑temperature endurance: 2,000 hours at 105°C under rated conditions provides predictable life performance in hot operating environments.
• Robust ripple handling: Rated ripple current of 470 mArms (120 Hz) and 672.1 mA at 50 kHz supports effective smoothing under AC ripple stress.
• Secure PCB mounting: Snap‑in radial can design simplifies assembly and provides mechanical stability for heavier electrolytic components.
• Regulatory compliance: RoHS conformity ensures suitability for restricted‑substance environments and modern regulatory requirements.

Why Choose LGM2W181MELZ30?

The LGM2W181MELZ30 balances high‑voltage performance with a compact, snap‑in package for designers addressing space and thermal constraints. With a 450 V rating, 180 µF capacitance, and tested endurance at 105°C, it is positioned for demanding general‑purpose power applications where long‑term stability, ripple tolerance, and a smaller case footprint are required.

This part is appropriate for engineers seeking a reliable, RoHS‑compliant electrolytic solution for high‑voltage smoothing and energy storage in industrial and power conversion designs, especially where equipment downsizing and secure PCB mounting are priorities.

Request a quote or contact sales to discuss availability, pricing and lead times for the LGM2W181MELZ30.