LASW6391MELC45ZB

The LASW6391MELC45ZB is a snap‑in terminal aluminum electrolytic capacitor designed for general‑purpose, high‑voltage applications. It provides 390 µF at a 420 V rating in a compact radial can (φ35 × 45 mm) and is supplied in tray packing for production use.

Engineered for demanding environments, this capacitor offers a 2000‑hour endurance at 105°C, high ripple current capability across low and high frequencies, and safety features for abnormal voltage conditions—making it suitable for equipment used in areas with voltage fluctuation.

Key Features

• Capacitance & Voltage: 390 µF nominal capacitance with a 420 V rated voltage and ±20% tolerance at 120 Hz, 20°C.
• High‑temperature Endurance: Rated for 2000 hours at 105°C under DC bias plus rated ripple current, with defined limits for capacitance change, tan δ, and leakage current after endurance testing.
• Low‑loss Dielectric: tan δ (loss tangent) of 0.20 max at 20°C and 120 Hz for stable dissipation characteristics.
• Ripple Current Capability: 1300 mA at 120 Hz and 1495 mA at 10 kHz, with frequency coefficients provided in the series datasheet for ripple current scaling.
• Leakage Current: Low leakage current specified at 1210 µA under rated conditions.
• Mounting & Package: Snap‑in radial can (φ35 × 45 mm) for secure board mounting and simplified assembly.
• Safety Features: Designed with a pressure relief vent and improved safety measures for abnormal excessive voltage conditions.
• Operating Range & Compliance: Operating temperature −25°C to +105°C and RoHS compliant; provided in tray packing and in mass production status.

Typical Applications

• General‑purpose power equipment: Bulk energy storage and smoothing in high‑voltage power supplies where stable capacitance and high voltage rating are required.
• Equipment exposed to voltage fluctuation: Suited for systems operating in environments with fluctuating voltage thanks to permitted abnormal voltage handling and safety venting.
• Compact high‑voltage assemblies: Smaller case size with higher ripple current supports space‑constrained power modules and industrial electronics.

Unique Advantages

• High ripple endurance: Specified ripple current at both low and high frequencies (1.3 A at 120 Hz, 1.495 A at 10 kHz) reduces thermal stress in power circuits.
• Long life at elevated temperature: 2000 hours endurance at 105°C provides predictable aging characteristics for long‑term designs.
• Compact snap‑in package: φ35 × 45 mm radial can with snap‑in terminals simplifies board mounting while saving space.
• Safety‑oriented design: Pressure relief vent and abnormal voltage tolerance minimize risk in overvoltage scenarios and improve operational safety.
• Production‑ready supply: Tray packing and mass production status support volume manufacturing and assembly workflows.
• Regulatory compliance: RoHS compliance supports environmental and regulatory requirements for deployed systems.

Why Choose LASW6391MELC45ZB?

LASW6391MELC45ZB combines a high 420 V rating with substantial capacitance and robust ripple current capability in a compact snap‑in aluminum electrolytic package. Its 2000‑hour endurance at 105°C, controlled loss tangent, and defined leakage specifications make it a reliable option for designers who need predictable performance under elevated temperature and ripple stress.

This part is ideal for engineers and procurement teams specifying general‑purpose high‑voltage capacitors for production builds, especially where equipment may experience voltage fluctuations and where tray‑packed, mass‑production components are required.

Request a quote or contact sales to discuss availability, lead times, and volume pricing for LASW6391MELC45ZB.