LGG2W181MELZ40

The LGG2W181MELZ40 is an aluminum electrolytic capacitor from Nichicon’s LGG series featuring a snap‑in terminal configuration and a compact, snap‑in can package (φ22 × 40 mm). It delivers 180 μF nominal capacitance at a 450 V rating with a rated operating temperature up to 105°C.

Designed for general‑purpose applications, this part offers high‑voltage capability, measurable ripple handling at both low and high frequencies, and a 2000‑hour endurance rating at 105°C—making it suitable for space‑conscious equipment designs requiring reliable high‑voltage capacitance.

Key Features

• Capacitance & Tolerance — 180 μF nominal capacitance with ±20% tolerance (120 Hz, 20°C).
• High Voltage Rating — Rated voltage of 450 V for high‑voltage system requirements.
• Ripple Handling — Low frequency ripple current: 790 mA at 120 Hz; high frequency ripple current: 1.13 A at 100 kHz.
• Leakage Current — Specified leakage current of approximately 850 μA after rated voltage application.
• High‑Temperature Endurance — 2000 hours life at 105°C under rated conditions; endurance specifications include capacitance, tan δ, and leakage stability.
• Temperature Range — Operating temperature range from −25°C to +105°C (for 400–450 V rating per series specification).
• Compact Snap‑In Package — Snap‑in radial can package (φ22 × 40 mm) optimized for equipment downsizing; tray packing for board‑level handling.
• RoHS Compliant — Meets RoHS directive requirements as specified in the product data.

Typical Applications

• General Purpose — Suited for general‑purpose applications that require a 450 V, 180 μF electrolytic capacitor in a compact snap‑in package.
• Space‑Constrained Equipment — Designed for equipment downsizing where a smaller case size is required while retaining high voltage capability.
• High‑Temperature Environments — Appropriate for designs needing operation up to 105°C with a 2000‑hour endurance rating.

Unique Advantages

• Compact form factor: One rank smaller case size compared with predecessor series, enabling reduced board space in constrained designs.
• High‑voltage capability: 450 V rating provides headroom for higher DC bus voltages without changing capacitor family.
• Dual‑frequency ripple performance: Specified ripple currents at both 120 Hz and 100 kHz allow predictable thermal and electrical behavior across a range of switching and line frequencies.
• Engineered for durability: 2000 hours endurance at 105°C ensures long‑term stability of capacitance, tan δ, and leakage under rated conditions.
• Assembly‑friendly snap‑in termination: Snap‑in mounting simplifies mechanical retention and board insertion for radial can applications.
• Regulatory compliance: RoHS compliant for use in assemblies requiring restricted substance compliance.

Why Choose LGG2W181MELZ40?

The LGG2W181MELZ40 combines a compact snap‑in can, high 450 V rating, and 180 μF capacitance with clearly specified ripple, leakage, and endurance characteristics. This positions the part for engineers and purchasers seeking a reliable, space‑efficient electrolytic solution for general‑purpose high‑voltage designs operating up to 105°C.

With tray packing for board‑level handling and RoHS compliance, the LGG2W181MELZ40 is suitable for volume production where predictable electrical performance and thermal endurance are required over the product life.

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