LAS2W331MELC35

The LAS2W331MELC35 from Nichicon’s LAS series is a snap‑in terminal aluminum electrolytic capacitor designed for high-voltage, high-ripple applications. It delivers 330 µF at 450 V in a compact radial can package and is polarized for DC use.

Engineered for equipment exposed to voltage fluctuations, this capacitor offers 105°C permissible abnormal voltage capability, extended endurance under rated ripple, and RoHS compliance for use in general-purpose industrial and power applications.

Key Features

• Voltage and Capacitance — 330 µF nominal capacitance at a rated voltage of 450 V, suitable for high-voltage DC applications requiring polarized electrolytic energy storage.
• High‑Temperature Endurance — Specified to withstand 2000 hours of DC bias plus rated ripple current at 105°C, with capacitance change kept within ±20% after endurance testing.
• Snap‑in Radial Can Package — Smaller-sized, snap‑in terminal construction (radial, can – snap‑in) for secure board mounting and higher packaging density compared with LAQ series variants.
• Ripple Current Capability — Rated ripple current of 1.4 A at 120 Hz and 1.61 A at 10 kHz; frequency coefficient of rated ripple current is 1.00 at 120 Hz and 1.15 at 10 kHz or more.
• Safety Features — Improved safety design including a pressure relief vent that operates without producing flames, ignitions, or dispersion of case fragments; safety testing for 450 V, C ≥ 220 µF includes limited DC current testing at 7 A with test voltages of 550 VDC and 675 VDC.
• Operating Range & Tolerance — Operating temperature range −25°C to +105°C with capacitance tolerance ±20% (120 Hz, 20°C), and leakage current limits defined per datasheet.
• Environmental Compliance — Compliant with RoHS directives (2011/65/EU, (EU)2015/863).

Typical Applications

• Industrial power supplies — Bulk smoothing and ripple filtering where 450 V ratings and elevated ripple endurance at 105°C are required.
• Power conversion equipment — Suitable for converters and conditioning modules operating in environments with fluctuating input voltages.
• Equipment in voltage‑fluctuating areas — Designed specifically for systems exposed to abnormal voltage variations thanks to enhanced safety features and permissible abnormal voltage rating.

Unique Advantages

• Long high‑temperature life: 2000 hours endurance at 105°C under rated ripple current provides predictable aging characteristics for designs that operate hot.
• High-voltage, high-ripple capability: 450 V rating with specified ripple currents (1.4 A at 120 Hz, 1.61 A at 10 kHz) and frequency coefficients to size for application frequencies.
• Compact snap‑in form factor: Smaller case sizes than the LAQ series allow denser board layouts while maintaining snap‑in mechanical retention.
• Built‑in safety response: Pressure relief vent and defined safety test conditions (7 A limited DC current, 550/675 VDC test voltages for C ≥ 220 µF at 450 V) minimize risk under abnormal voltage events.
• Clear performance limits: Datasheeted tolerance, leakage, tan δ, and stability figures make it straightforward to validate designs against endurance and shelf‑life requirements.
• RoHS compliant: Meets applicable RoHS directives for restricted substances.

Why Choose LAS2W331MELC35?

The LAS2W331MELC35 balances high-voltage capability and ripple endurance in a compact snap‑in aluminum electrolytic package from Nichicon’s LAS series. Its 450 V rating, 330 µF capacitance, and 2000‑hour endurance at 105°C make it a practical choice for engineers designing power supplies and conversion equipment exposed to voltage fluctuations and elevated operating temperatures.

With documented frequency coefficients for ripple current, defined safety test conditions for large capacitance values at 450 V, and RoHS compliance, this capacitor offers verifiable performance and predictable long‑term behavior for industrial and general‑purpose power systems.

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