LGW2W271MELB40

The LGW2W271MELB40 is a snap‑in terminal aluminum electrolytic capacitor designed for general‑purpose power applications that require high ripple current capability and elevated operating temperature. As a polarized 270 µF, 450 V unit rated to operate up to 105°C, it delivers long endurance under continuous ripple stress and a compact radial can snap‑in package suited for PCB assemblies.

Key Features

• Capacitance and Voltage: 270 µF nominal capacitance with a 450 V rated voltage for higher‑voltage power circuits.
• High Ripple Current Performance: Rated ripple current of 1.9 A at 120 Hz and 2.717 A at 50 kHz, supporting applications with significant AC ripple stress.
• 105°C Endurance: Designed to withstand 3000 hours of rated ripple current at 105°C, with endurance criteria defined for capacitance, tan δ and leakage current.
• Operating Temperature Range: Specified for operation from −25 °C to +105 °C.
• Polarized, Snap‑In Mounting: Radial, can‑type snap‑in terminal package for secure PCB installation and straightforward assembly.
• Leakage Current Specification: Leakage current meets I ≤ 3√(C·V) μA after 5 minutes at 20 °C (per datasheet measurement conditions).
• RoHS Compliant: Conforms to RoHS directive (2011/65/EU,(EU)2015/863).
• Compact Footprint: Physical size approximately L: 4 × D: 3 cm suitable for dense power assemblies.

Typical Applications

• General‑purpose power modules: Bulk energy storage and smoothing where a 450 V rating and 270 µF capacitance are required.
• High ripple current circuits: Power supplies and converters that impose continuous ripple stress benefit from the capacitor’s rated ripple current and 105 °C endurance.
• PCB snap‑in assemblies: Radial snap‑in can package for reliable mounting in industrial and commercial power electronics assemblies.

Unique Advantages

• High voltage capability: 450 V rating enables use in higher‑voltage power rails without additional series stacking.
• Long ripple‑life at elevated temperature: 3000 hours endurance under rated ripple current at 105 °C improves reliability in thermally demanding environments.
• Frequency‑adaptive ripple handling: Documented ripple current values at 120 Hz and 50 kHz support designs across typical power conversion frequencies.
• Snap‑in convenience: Radial snap‑in terminals simplify insertion and mechanical retention for through‑hole PCB assembly.
• Predictable leakage behavior: Leakage current limited by the 3√(C·V) μA criterion after standard charge time for controlled standby losses.
• Regulatory compliance: RoHS conformity supports deployments where restricted‑substance compliance is required.

Why Choose LGW2W271MELB40?

LGW2W271MELB40 combines a high 450 V rating with 270 µF capacitance in a snap‑in aluminum electrolytic package engineered for sustained ripple stress at elevated temperatures. Its 105 °C endurance specification and 3000‑hour ripple life make it a robust choice for designers addressing reliability and thermal endurance in general‑purpose power applications.

This part is well suited to engineers specifying components for power supplies, converters and other assemblies that require a polarized capacitor with verified ripple current performance, compact radial snap‑in mounting, and RoHS compliance.

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