LGA2W331MELA45

The LGA2W331MELA45 is a snap‑in terminal aluminum electrolytic capacitor designed for high capacitance and high ripple current applications. As a radial, can‑style, snap‑in component, it targets general‑purpose electronic assemblies that require robust high‑voltage energy storage and ripple handling.

Key value propositions include a 450 V rated voltage, 330 µF capacitance, long life under elevated temperature and ripple stress (5,000 hours at 105°C), and RoHS compliance for regulated production environments.

Key Features

• Capacitance & Voltage — 330 µF nominal capacitance with a 450 V rated voltage and ±20% tolerance for reliable high‑voltage energy storage.
• High Ripple Current — Rated ripple 1.98 A at 120 Hz (105°C). Frequency coefficient data yields 2.83 A at 50 kHz based on the product specifications.
• Long Life / Endurance — Specified to withstand 5,000 hours of rated ripple current at 105°C; after test, capacitance remains within ±20%, tan δ ≤ 200% of initial, and leakage current ≤ initial specified value.
• Thermal Performance — Operating temperature range from −40°C to +105°C with low‑temperature stability characteristics (Z(−25°C)/Z(+20°C) ≤ 8 at 120 Hz).
• Leakage & Loss Angle — Leakage current defined by I ≤ 3√CV (μA) after 5 minutes at 20°C; tan δ max 0.20 at 120 Hz and 20°C.
• Package & Mounting — Radial, can‑style snap‑in package for secure board mounting; physical size L: 4.5 cm × D: 2.5 cm and maximum seated height 1.772 inches.
• Environmental Compliance — Compliant to the RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

• General‑Purpose Electronic Assemblies — Provides high capacitance and voltage handling for power subsystems where long life and high ripple tolerance are required.
• High‑Ripple Power Circuits — Designed for circuits subjected to continuous ripple currents at elevated temperatures, supported by the rated ripple current and frequency coefficients.
• Industrial Power Supplies — Serves as a high‑voltage bulk or smoothing capacitor where robust thermal and endurance performance is needed.

Unique Advantages

• Proven High‑Temperature Endurance: Rated to withstand 5,000 hours at 105°C under rated ripple, delivering predictable life performance in hot operating environments.
• High Voltage & High Capacitance: 450 V and 330 µF combine to reduce the number of components needed for high‑voltage energy storage.
• Frequency‑Aware Ripple Capability: Clear rated ripple current and frequency coefficients allow designers to calculate ripple handling across frequencies (e.g., 1.98 A at 120 Hz; 2.83 A at 50 kHz).
• Robust Leakage & Loss Specifications: Leakage current governed by the I ≤ 3√CV formula and tan δ max of 0.20 make it straightforward to predict electrical behavior after application of rated voltage.
• Secure Snap‑In Mounting: Radial snap‑in can package offers reliable mechanical retention for through‑hole assemblies.
• Regulatory Compliance: RoHS compliance supports use in regulated manufacturing environments.

Why Choose LGA2W331MELA45?

The LGA2W331MELA45 positions itself as a durable, high‑voltage electrolytic solution for designs that require substantial capacitance, elevated ripple handling, and long operational life at high temperature. Its combination of 450 V rating, 330 µF capacitance, and 5,000‑hour endurance at 105°C makes it suitable for engineering teams specifying robust power components for challenging thermal and ripple environments.

Manufactured by Nichicon and delivered in a radial snap‑in can package, this capacitor delivers measurable, spec‑driven advantages for procurement and design planning—helping simplify BOM decisions while providing traceable electrical and environmental performance data.

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