LGM2W271MELB25

The LGM2W271MELB25 is an aluminum electrolytic capacitor in a snap‑in terminal, ultra‑smaller-sized form factor from Nichicon’s LGM series. It delivers 270 µF capacitance at a 450 V rating and is designed for general-purpose use where higher voltage handling and compact packaging are required.

Engineered for equipment downsizing, this part offers a one‑rank smaller case than the LGL series, compatibility with elevated ambient temperatures up to 105°C, and RoHS (2011/65/EU,(EU)2015/863) compliance.

Key Features

• Capacitance and Voltage — 270 µF rated capacitance at 450 V, specified with ±20% tolerance (120 Hz, 20°C).
• High‑temperature Endurance — Rated for operation from −25°C to +105°C with an endurance specification of 2000 hours at 105°C under DC bias plus rated ripple.
• Snap‑in Terminal / Package — Radial can with snap‑in terminals for secure mounting in power assemblies and chassis installations.
• Compact Form Factor — Ultra‑smaller-sized case (one rank smaller than LGL) to support equipment downsizing; physical size: 30 × 25 mm (φD × L) / 3.0 × 2.5 cm.
• Ripple Current Capability — Rated ripple current of 650 mArms at 105°C, 120 Hz; frequency coefficient yields up to 1.43 at 50 kHz or more (equivalent to ~929.5 mA at 50 kHz).
• Leakage and Dissipation — Leakage current specified by I ≤ 3√(CV) μA after 5 minutes at 20°C; tangent of loss angle (tan δ) ≤ 0.20 at 120 Hz, 20°C.
• RoHS Compliant — Conforms to RoHS directive (2011/65/EU,(EU)2015/863).

Typical Applications

• General‑purpose power filtering — Use in circuits requiring 450 V, 270 µF smoothing and energy storage where a compact, high‑voltage capacitor is needed.
• Equipment downsizing — Suited for power assemblies and systems that require reduced case size thanks to its one‑rank smaller footprint versus the LGL series.
• High‑temperature environments — Applicable where components must maintain performance at elevated temperatures up to 105°C, backed by a 2000‑hour endurance rating at that temperature.

Unique Advantages

• Space‑efficient design — One‑rank smaller case size supports reduced PCB and enclosure footprint without sacrificing voltage or capacitance.
• High voltage capability — 450 V rating enables use in higher‑voltage DC bus and power applications while maintaining a compact package.
• Robust thermal performance — Rated operation to 105°C and 2000‑hour endurance at that temperature deliver predictable behavior in thermal stress conditions.
• Broad ripple handling — 650 mArms rated ripple at 120 Hz and frequency‑scaled capability up to ~929.5 mA at 50 kHz accommodate a range of switching and line‑frequency conditions.
• Measured electrical characteristics — Specified limits for leakage (I ≤ 3√CV), tan δ (≤0.20), and capacitance tolerance (±20%) provide verifiable parameters for design and validation.
• Regulatory compliance — RoHS conformity supports incorporation into designs targeting restricted‑substance compliance.

Why Choose LGM2W271MELB25?

The LGM2W271MELB25 positions itself as a compact, high‑voltage aluminum electrolytic capacitor tailored for designers who need 450 V performance in a reduced footprint. Its snap‑in package, clear electrical limits, and elevated temperature endurance make it a practical choice for general‑purpose power filtering and equipment downsizing efforts.

Engineers specifying from the Nichicon LGM series can rely on documented leakage, dissipation, ripple, and endurance characteristics to support predictable system behavior and lifecycle planning while retaining RoHS compliance for regulatory alignment.

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