LAKW6181MELB35

The LAKW6181MELB35 from Nichicon is a snap-in terminal aluminum electrolytic capacitor rated at 180 µF and 420 V, designed for general-purpose power applications. It is built for elevated-temperature operation with a permissible abnormal voltage rating at 105°C and enhanced safety characteristics for over-voltage events.

This capacitor is targeted at equipment and systems that experience voltage fluctuation and require sustained ripple-current performance and reliable safety behavior. Key value propositions include high-voltage capability, extended high-temperature endurance, and snap-in mounting for robust PCB retention.

Key Features

• Capacitance & Voltage — Rated capacitance of 180 µF at a DC voltage rating of 420 V, suitable for high-voltage bulk and smoothing applications within its rated limits.
• High-temperature endurance — Specified to withstand 2000 hours of rated ripple-current application at 105°C, supporting long-duration operation under elevated thermal stress.
• Permissible abnormal voltage & safety — Designed with improved safety features for abnormally excessive voltage; the pressure relief vent is specified to operate without creating dangerous conditions such as flames or dispersion of case pieces.
• Ripple-current capability — Rated ripple-current performance includes 900 mA at 120 Hz and 1.035 A at 10 kHz; for the 420 V range and capacitance between 100 µF and 220 µF, a limited DC current rating of 4 A is specified under test conditions.
• Mounting & package — Snap-in terminal type in a radial can (snap-in) package for secure PCB mounting and mechanical stability in power assemblies.
• Operating range — Specified category temperature range from −25°C to +105°C to cover a wide range of industrial operating conditions.
• RoHS compliance — Compliant with the RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

• General-purpose power systems — Bulk filtering and energy buffering in power supplies where a 420 V rating and 180 µF capacitance are required.
• Equipment subject to voltage fluctuations — Systems operating in environments with unstable line conditions that benefit from the capacitor's permissible abnormal voltage design and safety features.
• High-temperature power assemblies — Power modules and industrial electronics that require sustained performance at temperatures up to 105°C and long ripple endurance.
• High-frequency ripple handling — Circuits requiring defined ripple-current performance at both low and high frequencies (specified values at 120 Hz and 10 kHz).

Unique Advantages

• High-voltage capability: 420 V rating enables use in higher-voltage power systems without up-rating multiple lower-voltage components.
• Validated high-temperature endurance: 2000-hour ripple-current endurance at 105°C reduces the need for frequent replacements in hot environments.
• Designed safety behavior: Pressure relief vent performance is specified to avoid dangerous outcomes under abnormal voltage conditions, supporting safer system design.
• Practical mounting: Snap-in radial can package provides mechanical retention and simplified assembly for power boards.
• Measured ripple performance: Documented ripple-current figures at 120 Hz and 10 kHz allow engineers to size capacitors for both mains-frequency and higher-frequency ripple loads.
• Regulatory compliance: RoHS conformity supports use in designs targeting restricted-substance compliance.

Why Choose LAKW6181MELB35?

LAKW6181MELB35 combines high-voltage rating, substantial capacitance, and a snap-in package with specified long-term ripple endurance at elevated temperatures. It is well suited for designers building general-purpose power equipment and systems that operate in fluctuating-voltage environments and require documented safety and ripple performance.

Choosing this Nichicon LAK-series part provides a balance of voltage capability, thermal endurance, and mounting practicality for applications where reliable bulk capacitance and controlled behavior under abnormal voltage conditions matter.

If you need pricing, availability, or technical details for integration, request a quote or submit an inquiry to receive a formal quotation and further product support information.