LGL2W331MELC25

The LGL2W331MELC25 is an aluminum electrolytic capacitor from Nichicon’s LGL series featuring a snap-in terminal type and an ultra-smaller-sized radial can package. It provides 330 µF capacitance at a 450 V rating and is polarized for DC applications.

Designed for general-purpose power applications, this capacitor supports high-temperature environments up to 105°C and offers a specified endurance of 2000 hours at 105°C under DC bias with rated ripple current applied.

Key Features

• Capacitance & Voltage — 330 µF capacitance with a 450 V rated voltage and ±20% tolerance at 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 current.
• Snap‑In Radial Can Package — Snap-in mounting type in a compact radial can package for secure PCB installation.
• Ripple Current Capability — Specified ripple current of 1.07 A at 120 Hz and 1.53 A at 50 kHz, with frequency coefficients defined in the series datasheet for other frequencies.
• Leakage and Dissipation Characteristics — Leakage current limited by the series formula I ≤ 3√CV (μA) after 5 minutes at 20°C; tangent of loss angle (tan δ) specified up to 0.20 at 450 V (measured at 120 Hz, 20°C).
• Low‑Temperature Stability — Impedance stability characterized by Z(−25°C)/Z(+20°C) ≤ 8 (measurement at 120 Hz), supporting performance across the rated temperature range.
• Polarized Construction — Standard polarized electrolytic design for DC smoothing and energy storage in power circuits.
• Compact Size — Physical size approximately L: 2.5 × D: 3.5 cm for space-constrained assemblies (snap-in radial can form factor).

Typical Applications

• General-purpose power supplies — DC smoothing and bulk capacitance where a 450 V rating and high-temperature operation are required.
• Power conversion units — Energy storage and ripple suppression in DC-link and converter stages that demand endurance at elevated temperature.
• Industrial electronics — High-voltage circuits in industrial equipment benefiting from snap-in mounting and long endurance at 105°C.

Unique Advantages

• High-voltage capability: 450 V rating enables use in higher-voltage DC circuits without up-rating components.
• Long high-temperature life: 2000 hours endurance at 105°C under rated conditions provides predictable aging characteristics in hot environments.
• Measured ripple performance: Published ripple current values at 120 Hz and 50 kHz allow designers to size components against actual ripple loads.
• Clear electrical limits: Leakage current and tan δ specifications are provided for verification in design validation and quality checks.
• Space-conscious form factor: Ultra-smaller-sized snap-in radial can fits dense PCBs while maintaining secure mechanical retention.
• Broad temperature operation: −25°C to +105°C rating supports applications exposed to wide ambient temperature swings.

Why Choose LGL2W331MELC25?

The LGL2W331MELC25 combines a 330 µF capacitance with a 450 V rating in a compact, snap-in radial can engineered for elevated-temperature endurance. Its published ripple current figures, leakage limits, and dissipation characteristics make it suitable for engineers specifying reliable bulk capacitance in general-purpose power and industrial circuits.

This part is appropriate for designs that require verified high-voltage performance, controlled impedance behavior across −25°C to +105°C, and documented endurance at 105°C. Choosing this capacitor helps maintain predictable electrical behavior over long operating periods in demanding thermal environments.

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