LGN2W271MELC30

The LGN2W271MELC30 is an aluminum electrolytic, snap-in terminal capacitor from Nichicon’s LGN series. It provides a 270 µF capacitance at a 450 V rating in a smaller-sized snap-in can designed for general-purpose applications.

Engineered for elevated-temperature operation, this part withstands 3000 hours of rated ripple current at 105°C and is specified for operation from −25°C to 105°C. It is polarized, RoHS compliant, and intended for general-purpose power applications that require high-voltage electrolytic energy storage in a compact snap-in package.

Key Features

• Electrical Ratings — 270 µF capacitance at a 450 V rated voltage with polarization and capacitance tolerance of −20% to +20%.
• High-temperature Endurance — Withstands 3000 hours application of rated ripple current at 105°C (endurance characteristics restored and measured after life test per datasheet).
• Operating Temperature Range — Specified for −25°C to 105°C for 350 to 600 V range parts; applicable to this 450 V part.
• Ripple Current Capability — Rated ripple current of 1.23 A at 120 Hz and 1.759 A at 100 kHz, supporting AC ripple handling across low and high frequencies.
• Package and Mounting — Snap-in radial can (radial, can - snap-in) for secure board mounting and assembly; one rank smaller case size than LGU in the LGN series.
• Physical Dimensions — Size: L: 3 × D: 3.5 cm; maximum seated height: 1.181 inch.
• Reliability Characteristics — Endurance criteria: capacitance change within ±20%, tan δ up to 200% of initial specified value, and leakage current not to exceed initial specified value after life testing per datasheet.
• Environmental Compliance — Compliant to the RoHS directive (2011/65/EU,(EU)2015/863).
• Leakage Current Specification — Leakage Current: I≤3/√(μA) after 5 minutes’ application of rated voltage at 20°C [as specified in the product datasheet].

Typical Applications

• General-purpose circuits — Designed for general-purpose applications that require a 450 V, 270 µF polarized electrolytic with snap-in mounting.
• High-temperature environments — Suited to applications that require component operation up to 105°C and endurance under rated ripple current for prolonged periods.
• Board-mounted power assemblies — Snap-in radial can provides secure mechanical retention for through-hole board layouts where a smaller case than LGU is preferred.

Unique Advantages

• Proven high-temperature endurance: Rated to withstand 3000 hours of rated ripple current at 105°C, providing predictable long-term performance under elevated temperatures.
• Compact snap-in form factor: One rank smaller case size than LGU, enabling tighter packaging without sacrificing rated voltage or capacitance.
• Dual-frequency ripple handling: Published ripple current values at 120 Hz and 100 kHz support design verification across both low and high-frequency ripple conditions.
• Clear reliability specifications: Endurance limits for capacitance change, tan δ, and leakage current are defined after life testing per the datasheet.
• Regulatory compliance: RoHS directive conformity supports use in regions and projects requiring restricted substance compliance.
• Practical mounting option: Snap-in radial can simplifies installation in through-hole assemblies while delivering robust mechanical retention.

Why Choose LGN2W271MELC30?

The LGN2W271MELC30 combines a high-voltage 450 V rating with a substantial 270 µF capacitance in a smaller-sized snap-in can, offering a balance of energy storage and compact board footprint for general-purpose designs. Its specified endurance—3000 hours at 105°C under rated ripple current—along with defined post-test limits for capacitance, tan δ, and leakage current makes it appropriate for applications that need predictable, long-term behavior at elevated temperatures.

Manufactured by Nichicon and compliant with RoHS, this part is suited to designers and procurement teams seeking a vetted electrolytic capacitor for through-hole assemblies where snap-in mounting, high-voltage capability, and elevated-temperature endurance are required.

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