LGL2W331MELB35

The LGL2W331MELB35 is a snap-in, radial can aluminum electrolytic capacitor designed for general-purpose high-voltage applications. It combines a 330 µF capacitance with a 450 V rated voltage and a compact ultra-smaller-sized package for use where a polarized, high-voltage DC capacitor with robust temperature and endurance characteristics is needed.

This part is optimized for board-mounted snap-in installation and is specified for operation from –25 °C to +105 °C with a guaranteed endurance of 2000 hours at 105 °C under rated bias and ripple conditions.

Key Features

• Capacitance & Voltage — 330 µF rated capacitance at 450 V for high-voltage DC energy storage and filtering.
• Temperature Range & Endurance — Specified operation from –25 °C to +105 °C with 2000 hours endurance at 105 °C under rated conditions.
• Snap‑in Mounting — Radial, can-type snap-in terminals for secure PCB mounting and straightforward mechanical retention.
• Ripple Current Capability — Rated ripple current: 1.12 A at 120 Hz and 1.602 A at 50 kHz; frequency coefficients available in the datasheet for other frequencies.
• Electrical Stability — Capacitance tolerance ±20% (at 120 Hz, 20 °C); leakage current specified by I ≤ 3√CV (μA) after 5 minutes at 20 °C.
• Loss Factor — Tangent of loss angle (tan δ) specified up to 0.20 at 450 V (measurement at 120 Hz, 20 °C).
• Compact Mechanical Profile — Size dimensions L: 3.5 × D: 3 cm with a seated height maximum of 1.378 inch, enabling space-efficient placement.

Typical Applications

• General-purpose high-voltage DC filtering — Use where a 330 µF, 450 V polarized capacitor is required for bulk smoothing or DC link filtering.
• Power supply energy storage — Provides energy buffering and ripple suppression in designs that require a 105 °C temperature rating and snap-in mounting.
• Industrial and commercial power electronics — Suitable for board-mounted modules that need a compact, high-voltage electrolytic capacitor with defined endurance at elevated temperature.

Unique Advantages

• High-voltage capability: 450 V rating supports higher DC link and smoothing voltages without series stacking.
• 105 °C endurance: Rated for continuous operation up to 105 °C with 2000 hours endurance under rated conditions, helping maintain performance in hot operating environments.
• Snap-in package for reliable mounting: Radial snap-in terminals provide mechanical retention for vertical PCB mounting and simplified assembly.
• Well-defined ripple performance: Specified ripple currents at 120 Hz and 50 kHz (1.12 A and 1.602 A respectively) with frequency coefficients available to size for other operating frequencies.
• Controlled leakage and loss: Leakage current limited by I ≤ 3√CV (μA) and tan δ specified (max. 0.20 at 450 V), enabling predictable performance across production units.
• Compact footprint: L: 3.5 × D: 3 cm dimensions and an ultra-smaller-sized designation help reduce board area for space-constrained designs.

Why Choose LGL2W331MELB35?

The LGL2W331MELB35 balances high-voltage performance with a compact snap-in package and elevated temperature endurance, making it a practical choice for designers needing reliable polarized capacitance at 450 V and 330 µF. Its specified ripple current ratings, leakage current formula, and loss factor provide measurable parameters for engineering margin and thermal design.

This capacitor is well suited to engineers and procurement teams building general-purpose power electronics where long-term stability at up to 105 °C, predictable electrical characteristics, and board-level mechanical retention are required.

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