LAKW6470MELZ25ZB

The LAKW6470MELZ25ZB is a 47 µF, 420 V aluminum electrolytic capacitor in a snap‑in radial can package, designed for general‑purpose power applications. It belongs to the Nichicon LAK series and combines high voltage capability with extended endurance—rated for 2000 hours at 105°C—making it suitable for equipment exposed to fluctuating voltages and demanding thermal environments.

Key electrical characteristics include a ±20% capacitance tolerance, tanδ ≤ 0.20 (20°C, 120 Hz), rated ripple current handling at both low and high frequencies, and low leakage current. The part is RoHS compliant and supplied in tray packing for production use.

Key Features

• High Voltage Capability: Rated for 420 V to support high‑voltage power rails and smoothing applications.
• Capacitance & Tolerance: 47 µF with ±20% tolerance at 120 Hz, 20°C for predictable filtering and energy storage.
• Endurance at Elevated Temperature: Specified for 2000 hours at 105°C under rated ripple conditions, providing long life in hot operating environments.
• Loss Characteristics: Tangent of loss angle (tanδ) 0.20 max at 20°C, 120 Hz for controlled dissipation.
• Ripple Current Performance: Low‑frequency ripple current 350 mA (120 Hz) and high‑frequency ripple current 402.5 mA (10 kHz) to handle AC components on DC rails.
• Low Leakage Current: Specified leakage current of 420 µA for predictable standby and biased leakage behavior.
• Snap‑In Radial Package: φ22 × 25 mm can with snap‑in terminals for robust board retention and through‑hole mounting.
• Safety and Series Features: LAK series includes improved safety features for abnormal voltage conditions and a pressure relief vent designed to operate without flame or dispersion in fault scenarios.
• Compliance & Packaging: RoHS compliant; supplied in tray packing suitable for mass production environments.

Typical Applications

• Power Supplies: Bulk filtering and smoothing on high‑voltage DC rails where 420 V rating and endurance at 105°C are required.
• Industrial Electronics: Energy storage and ripple suppression in equipment exposed to voltage fluctuations and elevated ambient temperatures.
• Inverters and Converters: DC link or intermediate filter where high voltage, ripple handling and long life improve system stability.
• General Purpose High‑Voltage Circuits: Use in designs that require a compact, snap‑in radial capacitor with defined leakage and dissipation characteristics.

Unique Advantages

• High‑Voltage, High‑Temperature Endurance: 420 V rating combined with 2000 hours at 105°C lets designers specify fewer replacements over product life in hot applications.
• Balanced Ripple Performance: Defined ripple current ratings at both 120 Hz and 10 kHz support a range of switching and line‑frequency environments.
• Predictable Electrical Behavior: Tight specification of tanδ and leakage current enables reliable thermal and leakage budgeting in system designs.
• Robust Mechanical Mounting: Snap‑in radial can package provides secure board attachment for high‑vibration or mechanically demanding assemblies.
• Series‑Level Safety Features: LAK series’ pressure relief and enhanced safety design reduce risk during abnormal overvoltage events.
• Production‑Friendly Packaging: Tray packing and mass‑production readiness streamline PCB assembly and inventory management.

Why Choose LAKW6470MELZ25ZB?

The LAKW6470MELZ25ZB is positioned for designs that require high voltage handling, reliable ripple performance, and sustained operation at elevated temperatures. Its combination of 47 µF capacitance, 420 V rating, and 2000‑hour endurance at 105°C makes it appropriate for power supplies, converters, and industrial equipment where voltage fluctuation and thermal stress are concerns.

Engineers and procurement teams will value the defined electrical specifications—tanδ, leakage current, and frequency‑dependent ripple ratings—alongside the snap‑in radial package and tray packing for streamlined assembly. The LAK series’ safety features and RoHS compliance further support long‑term reliability and regulatory alignment in production designs.

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