LAKW6181MELA45

The LAKW6181MELA45 is a Nichicon LAK series aluminum electrolytic capacitor in a snap‑in terminal can, rated for 420 V and 180 µF. It is designed for general‑purpose high‑voltage DC applications and equipment operating in voltage‑fluctuating environments.

Key design attributes include 105°C permissible operation with a 2000‑hour endurance, built‑in safety features for abnormally excessive voltage, and RoHS compliance—making it suitable where high voltage, high ripple handling and long‑term reliability are required.

Key Features

• Core Type Aluminum electrolytic, snap‑in terminal construction for secure board mounting and high current capability.
• Electrical Performance 180 µF capacitance with tolerance −20% to +20% and a rated voltage of 420 V; tangent of loss angle (tanδ) ≤ 0.20 (measured at 20°C, 120 Hz).
• Ripple and Leakage Low‑frequency ripple current 900 mA (120 Hz) and high‑frequency ripple current 1.035 A (10 kHz); specified leakage current 820 µA.
• Thermal and Endurance Operating temperature −25°C to +105°C with an endurance rating of 2000 hours at 105°C under rated ripple and DC bias.
• Safety and Voltage Robustness Improved safety features and a pressure relief vent designed to operate without flames or dispersion under abnormal voltage conditions.
• Package and Availability Radial can, snap‑in package sized φ25 × 45 mm (L: 4.5 × D: 2.5 cm), supplied in tray packing and listed as mass production.
• Regulatory RoHS compliant.

Typical Applications

• Power supply smoothing and ripple filtering — High voltage rating and specified ripple current make this capacitor suitable for DC link and output smoothing in power supplies.
• Equipment exposed to voltage fluctuations — Designed with extended voltage range and safety features for use in environments with abnormally excessive or fluctuating voltages.
• Industrial power modules — Long endurance at 105°C and robust leakage/ripple specifications support use in industrial power conversion and conditioning circuits.

Unique Advantages

• High‑voltage capability: 420 V rating enables use in higher DC bus and power supply designs where elevated voltage handling is required.
• Long high‑temperature endurance: Rated for 2000 hours at 105°C under rated ripple and DC bias, providing predictable lifetime performance in hot operating environments.
• Measurable ripple handling: Defined ripple current specs at both 120 Hz (900 mA) and 10 kHz (1.035 A) allow designers to size caps with confidence against system ripple demands.
• Safety venting: Built‑in pressure relief vent and safety design reduce the risk of dangerous failure modes under abnormal overvoltage conditions.
• RoHS compliant and production ready: Tray packing and mass production status support procurement and volume assembly requirements.

Why Choose LAKW6181MELA45?

LAKW6181MELA45 positions itself as a reliable, high‑voltage electrolytic solution for designers who need predictable ripple performance and long life at elevated temperatures. The combination of 420 V rating, 180 µF capacitance, defined low and high frequency ripple currents, and a 2000‑hour endurance at 105°C makes it appropriate for demanding general‑purpose power electronics and equipment exposed to voltage fluctuations.

Manufactured by Nichicon as part of the LAK series, this snap‑in radial can offers a practical form factor and safety features for systems requiring robust high‑voltage capacitors with proven operational parameters and regulatory compliance.

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