LGA2W331MELB35

The LGA2W331MELB35 from Nichicon is a snap‑in terminal aluminum electrolytic capacitor in the LGA series, rated for 450 V and 330 µF. It is a high‑capacitance, high‑ripple‑current, long‑life radial can designed for general purpose power applications.

Key value comes from its 105°C endurance—specified to withstand 5000 hours of rated ripple current at 105°C—combined with RoHS compliance for environmental conformity.

Key Features

• Capacitance & Voltage — 330 µF capacitance at a 450 V rated voltage, suitable where substantial bulk energy storage at high DC voltage is required.
• High ripple current capability — Rated ripple current of 2.23 A at 120 Hz (105°C); frequency coefficient allows up to approximately 3.189 A at 50 kHz, improving performance in higher‑frequency applications.
• Long life at elevated temperature — Endurance specified as 5000 hours with rated ripple current applied at 105°C; post‑test limits: capacitance change within ±20%, tan δ ≤ 200% of initial, leakage current ≤ initial specified value.
• Operating temperature range — −40°C to +105°C rating for use across a broad thermal envelope.
• Leakage and dissipation — Leakage current specified as I ≤ 3√CV (µA) after 5 minutes at 20°C; tangent of loss angle (tan δ) ≤ 0.20 at 120 Hz, 20°C.
• Package and mounting — Radial, snap‑in can (30 × 35 mm dimension: L 3.5 cm × D 3.0 cm), polarization noted; snap‑in termination provides secure PCB mounting for higher current applications.
• Environmental compliance — Compliant to the RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

• General Purpose (Power Filtering) — Used where high capacitance and 450 V rating are needed for filtering and smoothing in power circuits.
• General Purpose (Bulk Energy Storage) — Provides bulk capacitance for energy buffering in higher‑voltage designs within its specified temperature and ripple limits.
• General Purpose (Ripple Current Duty) — Suited to applications requiring sustained ripple current at elevated temperatures thanks to its 5000‑hour endurance at 105°C.

Unique Advantages

• High voltage, high capacitance in one device: 450 V and 330 µF combine to reduce the need for multiple parallel parts when high DC storage is required.
• Proven high‑temperature endurance: 5000 hours at 105°C under rated ripple current provides predictable long‑term performance in hot operating environments.
• Frequency‑adaptive ripple handling: Ripple current ratings and frequency coefficients allow designers to size capability across 120 Hz up to 50 kHz operating conditions.
• Secure snap‑in mounting: Radial snap‑in can provides robust mechanical retention for power electronics assemblies.
• Clear reliability metrics: Datasheet limits for capacitance change, tan δ, and leakage current after endurance and shelf‑life tests enable quantitative risk assessment for designs.
• RoHS compliant: Meets RoHS directive requirements for restrictive substances, supporting regulatory needs.

Why Choose LGA2W331MELB35?

The LGA2W331MELB35 is positioned for designs that need a high‑capacitance, high‑voltage aluminum electrolytic solution with demonstrable long‑term performance at elevated temperatures. Its combination of 330 µF at 450 V, dependable ripple‑current capability, and 5000‑hour endurance at 105°C makes it a clear choice for engineers seeking predictable behavior under sustained thermal and electrical stress.

Manufactured by Nichicon as part of the LGA series, this snap‑in radial can offers straightforward integration into general‑purpose power designs while providing the reliability metrics engineering teams require for lifecycle planning and qualification.

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