LAKW6151MELB30

The LAKW6151MELB30 is a radial, snap-in terminal aluminum electrolytic capacitor designed for general-purpose power applications requiring high voltage handling and elevated temperature endurance. As a member of the LAK series, it delivers a 150 µF capacitance at a 420 V rating with snap-in mounting for secure PCB retention.

This product addresses equipment operating in fluctuating-voltage environments by combining a 420 V rated voltage, a wide operating temperature range up to 105°C, defined ripple-current capability, and improved safety features for abnormally excessive voltage conditions.

Key Features

• Voltage and Capacitance — 150 µF nominal capacitance with a 420 V rated voltage and ±20% tolerance, suitable for high-voltage DC link and smoothing applications.
• High-Temperature Endurance — Rated for operation from -25°C to +105°C and qualified for 2000 hours with rated ripple current at 105°C, supporting sustained high-temperature use.
• Snap-in Radial Package — Radial, can-type snap-in construction provides robust mechanical mounting for through-hole PCB assemblies.
• Ripple Current Capability — Specified ripple current of 820 mA at 120 Hz and 943 mA at 100 kHz, enabling reliable AC ripple handling across common power frequencies.
• Safety and Abnormal Voltage Protection — Improved safety features for abnormally excessive voltage; pressure relief vent design operates without dangerous conditions such as flames or case dispersion per series safety performance tests.
• Electrical Characteristics — Leakage current specified as I ≤ 3√CV (µA) after 5 minutes at 20°C, and tangent of loss angle (tan δ) max 0.20 at 120 Hz, 20°C.
• RoHS Compliance — Compliant with RoHS directive (2011/65/EU,(EU)2015/863), meeting environmental restrictions for lead and other substances.

Typical Applications

• Industrial power equipment — Bulk filtering and DC-link smoothing in equipment exposed to fluctuating supply voltages where high-voltage capability and thermal endurance are required.
• Power supplies and converters — Energy storage and ripple suppression in high-voltage AC/DC and DC/DC stages that operate at elevated temperatures.
• Line-interactive systems — Use in equipment operating in areas with unstable or varying line voltages, leveraging the capacitor’s improved safety handling for abnormal voltage events.

Unique Advantages

• Rated for elevated temperatures: The 105°C rating and 2000-hour ripple endurance at that temperature provide predictable performance in hot operating environments.
• High-voltage capability: 420 V rating enables deployment in high-voltage DC-link and filtering roles without requiring series stacking of lower-voltage parts.
• Robust mounting: Snap-in radial can construction offers secure PCB retention and mechanical stability for through-hole assemblies.
• Defined ripple performance: Ripple current specifications at both 120 Hz and 100 kHz let designers size components against expected AC stress across common switching and line frequencies.
• Safety-validated behavior: Series safety testing and a pressure-relief vent ensure the capacitor mitigates abnormal overvoltage scenarios without dangerous outcomes under test conditions relevant to its voltage/capacitance range.
• Regulatory compliance: RoHS conformity supports designs targeting markets with restricted substance requirements.

Why Choose LAKW6151MELB30?

LAKW6151MELB30 is positioned for designers needing a high-voltage, high-temperature electrolytic solution with proven ripple endurance and snap-in mounting for reliable mechanical retention. Its combination of 420 V rating, 150 µF capacitance, and explicit safety test outcomes makes it suitable for power systems exposed to voltage fluctuation and thermal stress.

This part is appropriate for engineering teams focused on robust power filtering and energy-storage roles where measurable electrical characteristics (leakage current formula, tan δ limit, ripple ratings) and compliance (RoHS) are required to support long-term, maintainable designs.

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