LASW6331MELB45

The LASW6331MELB45 is a Nichicon LAS series aluminum electrolytic capacitor in a snap‑in terminal can, rated 330 µF at 420 V. Designed for general‑purpose power electronics, it targets applications that require compact high‑voltage energy storage with robust high‑temperature endurance.

Engineered for reliability under elevated temperature and fluctuating voltage conditions, this snap‑in capacitor offers extended endurance at 105 °C and enhanced safety features for abnormal over‑voltage events, making it suitable for industrial and power‑supply environments.

Key Features

• Dielectric and Package — Aluminum electrolytic construction in a radial snap‑in can (φ30 × 45 mm / L: 4.5 × D: 3 cm) for secure board mounting and high current handling.
• Nominal Electricals — 330 µF capacitance with a 420 V rated voltage and polarization suited for DC bulk smoothing and energy storage.
• Temperature & Lifetime — Rated for operation from −25 °C to 105 °C with a guaranteed endurance of 2000 hours at 105 °C under rated ripple conditions.
• Ripple Current Capability — Rated ripple current of 1.2 A at 120 Hz and 1.38 A at 10 kHz; frequency coefficient increases allowable ripple up to 1.15× at higher frequencies per series data.
• Electrical Stability — Capacitance tolerance ±20% and loss tangent (tan δ) ≤ 0.20 at 120 Hz, 20 °C; designed to meet endurance criteria (capacitance change within ±20% after life test).
• Safety & Reliability — LAS series includes improved safety features for abnormally excessive voltage and a pressure relief vent to mitigate hazardous failure modes.
• Compliance — RoHS‑compliant construction.

Typical Applications

• Power Supplies — Bulk filtering and energy storage for high‑voltage DC power supplies and converters where compact, high‑voltage capacitors are required.
• Industrial Equipment — Suitable for equipment operating in voltage‑fluctuating environments thanks to enhanced safety features and high endurance at elevated temperatures.
• General‑Purpose Electronics — Use in general‑purpose power sections that need reliable high‑voltage smoothing with long life at 105 °C.

Unique Advantages

• Long High‑Temperature Endurance: 2000 hours at 105 °C under rated ripple conditions ensures prolonged service life in hot operating environments.
• High Voltage Rating: 420 V nominal rating enables direct use in higher‑voltage DC rails without additional series stacking.
• Snap‑In Mounting: Robust snap‑in terminals simplify PCB insertion and provide secure mechanical retention for power applications.
• Improved Safety Design: Series‑level safety features and a pressure relief vent reduce hazardous outcomes under abnormal over‑voltage events.
• Frequency‑Scaled Ripple Capability: Ripple current specifications and series frequency coefficients allow designers to optimize performance across 120 Hz to kHz‑range switching environments.
• RoHS Compliant: Meets RoHS requirements for environmentally restricted substances.

Why Choose LASW6331MELB45?

LASW6331MELB45 combines a high 420 V rating with a 330 µF capacitance in a compact snap‑in can, delivering a practical balance of energy density and ruggedness for general‑purpose and industrial power designs. Its endurance at 105 °C and series‑level safety features make it a reliable choice where elevated temperatures and voltage fluctuations are expected.

This part is well suited for engineers specifying high‑voltage bulk capacitors that require proven lifetime performance, clear electrical characteristics (tolerance, tan δ, ripple current) and RoHS compliance from a recognized manufacturer.

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