LGU2W271MELB

The LGU2W271MELB is a snap-in terminal aluminum electrolytic capacitor rated at 450 V with 270 µF capacitance and ±20% tolerance. Designed for general-purpose high-voltage applications, it delivers high-temperature endurance and defined ripple-handling capability for demanding power circuits.

This radial, can-style snap-in capacitor is specified for operation from −25 °C to +105 °C (for the 315–450 V range) and carries a 3000-hour endurance rating at 105 °C, providing predictable long-term performance for industrial and power electronic designs.

Key Features

• High Voltage — Rated voltage of 450 V suitable for high-voltage DC circuits requiring substantial capacitance.
• Capacitance & Tolerance — 270 µF with ±20% tolerance measured at 120 Hz, 20 °C for predictable energy storage.
• Temperature & Endurance — Operating range −25 °C to +105 °C (for 315–450 V parts) with a 3000-hour endurance rating at 105 °C when subjected to rated ripple and DC bias.
• Ripple Current Performance — Rated ripple current of 1.28 A at 120 Hz (low frequency) and 1.83 A at 50 kHz (high frequency), with frequency coefficients specified in the datasheet for scaling ripple capability.
• Leakage Current — Specified leakage current of 1,040 µA (after standard voltage application), consistent with electrolytic capacitor characterization.
• Package & Mounting — Snap-in radial can (φ30 × 40 L) for stable PCB mounting and mechanical retention in mass-production assembly.
• RoHS Compliant — Conforms to RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

• High-voltage power supplies — Bulk capacitance and 450 V rating make it suitable for DC bus smoothing and energy storage in high-voltage supplies.
• Power conversion modules — Endurance at 105 °C and defined ripple ratings support use in DC–DC converters and inverter input/output stages.
• Industrial electronics — Robust temperature and lifespan characteristics address general-purpose industrial power circuits requiring reliable high-voltage capacitors.

Unique Advantages

• 450 V rating: Enables use on high-voltage DC rails without series stacking, simplifying BOM and layout.
• 3000-hour 105 °C endurance: Provides a defined lifetime under rated ripple and bias for predictable maintenance cycles and design margins.
• Dual-frequency ripple specifications: Rated ripple current values at both low (120 Hz) and high (50 kHz) frequencies allow designers to assess performance across switching and line-frequency environments.
• Snap-in radial can: Mechanical retention suitable for mass-production assembly and secure PCB mounting in rugged applications.
• RoHS compliant: Meets current lead-free environmental requirements for broader market acceptance.

Why Choose LGU2W271MELB?

The LGU2W271MELB combines a high 450 V rating with substantial 270 µF capacitance and a 105 °C, 3000-hour endurance specification, making it a practical choice for designers targeting reliable high-voltage energy storage and filtering in general-purpose industrial and power-electronics applications. Its snap-in radial can construction supports robust PCB retention and production assembly processes.

With quantified ripple-current ratings at multiple frequencies and a specified leakage current, LGU2W271MELB offers clear, verifiable electrical characteristics that simplify thermal and reliability trade-offs during design. Choose this part when you need a RoHS-compliant, durable aluminum electrolytic solution for high-voltage circuits.

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