LGG2W271MELA40

The LGG2W271MELA40 is a snap‑in terminal aluminum electrolytic capacitor from Nichicon's LGG series. It offers a 270 µF capacitance at a 450 V rating in a compact φ25 × 40 mm radial can with polarized terminals.

Designed as a 105°C, ultra‑smaller‑sized device (one rank smaller case than LGN), this general‑purpose capacitor supports equipment downsizing while delivering rated endurance and ripple handling for demanding power applications.

Key Features

• Rated Performance — 270 µF capacitance at 450 V with ±20% tolerance (120 Hz, 20°C), providing a high‑voltage polarized storage element in a compact package.
• High Temperature Endurance — Specified for operation to 105°C with a lifetime of 2000 hours at 105°C when subjected to D.C. bias plus rated ripple current, meeting series endurance criteria.
• Compact Snap‑In Package — Radial can, snap‑in mounting simplifies PCB retention and mechanical stability while supporting equipment size reduction; physical size is φ25 × 40 mm.
• Ripple Current Capability — Rated ripple current of 1.05 A at 120 Hz and 1.502 A at 100 kHz, enabling effective ripple handling across common switching frequencies.
• Electrical Characteristics — Leakage current specified by I ≤ 3√CV (μA) after 5 minutes at rated voltage and 20°C; tan δ maximum of 0.20 at 450 V (measured at 120 Hz, 20°C).
• Wide Operating Range — Polarized device rated for operation from −25°C to +105°C for 400–450 V versions, with defined low‑temperature impedance behavior (Z(–25°C)/Z(+20°C) ≤ 8 for 400–450 V).
• RoHS Compliant — Conforms to the RoHS directive (2011/65/EU, (EU)2015/863), supporting restricted‑substance requirements.

Typical Applications

• General‑purpose power electronics — Provides high‑voltage bulk capacitance where a 450 V, 270 µF polarized capacitor is required, with the package helping reduce board area.
• Equipment downsizing — The LGG series' ultra‑smaller case profile makes this part suitable for designs targeting reduced enclosure size without sacrificing rated voltage or endurance.
• High‑temperature environments — With operation up to 105°C and a 2000‑hour endurance rating at that temperature, it supports thermally demanding assemblies within its specified range.

Unique Advantages

• High‑voltage, high‑capacitance combination — 270 µF at 450 V delivers significant stored energy in a compact form factor for high‑voltage system requirements.
• Compact, snap‑in mounting — Radial snap‑in can reduces mechanical assembly time and improves PCB retention compared with non‑snap mounting styles.
• Defined ripple performance — Published ripple current ratings at 120 Hz and 100 kHz enable designers to match the part to switching and mains‑frequency ripple conditions.
• Quantified electrical limits — Leakage current limit (I ≤ 3√CV) and tan δ maximum (0.20 at 450 V) provide clear design parameters for leakage and dissipation budgeting.
• Endurance and shelf life data — Endurance specified after 2000 hours at 105°C and defined shelf‑life recovery procedures give predictable long‑term behavior within rated conditions.
• Compliance and sizing — RoHS compliance and a φ25 × 40 mm footprint help meet environmental restrictions and support compact designs.

Why Choose LGG2W271MELA40?

LGG2W271MELA40 balances a high 450 V rating and substantial 270 µF capacitance with a compact, snap‑in package tailored for equipment downsizing. Its 105°C rating, 2000‑hour endurance at that temperature, and specified ripple and leakage characteristics provide clear, verifiable parameters for power and general‑purpose designs.

This part is well suited to designers seeking a verified, compact aluminum electrolytic solution for high‑voltage applications where board space, thermal performance, and predictable electrical limits are important. Nichicon series documentation supplies the endurance, low‑temperature impedance, and loss‑angle data needed for robust engineering tradeoffs and long‑term planning.

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