LAKW6221MELB40

The LAKW6221MELB40 from Nichicon is a snap-in terminal aluminum electrolytic capacitor in the LAK series, specified for 420 V and 220 µF. It is a polarized, radial can package designed for general-purpose power applications where supply voltages can fluctuate.

Engineered for elevated-temperature operation, this capacitor supports continuous operation up to 105°C with verified endurance under rated ripple current, offering designers a robust energy-storage and smoothing component for demanding environments.

Key Features

• High Voltage Support: Rated at 420 V for use in higher-voltage DC circuits and equipment that require extended voltage capability within the LAK series.
• 220 µF Capacitance, ±20% Tolerance: Provides bulk energy storage and smoothing with stated tolerance at 120 Hz, 20°C.
• Wide Operating Temperature: Specified −25°C to 105°C for applications that encounter elevated ambient temperatures.
• 105°C Endurance: Endurance verified for 2000 hours at 105°C with D.C. bias plus rated ripple current; capacitance change remains within ±20% after the test.
• Ripple Current Ratings: Rated ripple current performance includes 1.00 A at 120 Hz and 1.15 A at 10 kHz, supporting AC ripple handling in power circuits.
• Safety and Overvoltage Behavior: Improved safety features for abnormally excessive voltage and a pressure-relief vent designed to operate without flames or hazardous dispersion under test conditions.
• Package and Mounting: Radial can, snap-in terminal type for secure mechanical mounting and straightforward assembly into power assemblies.
• Low Leakage and Loss: Leakage current specified by I ≤ 3√(C·V) µA after 5 minutes at 20°C; tangent of loss angle (tan δ) ≤ 0.20 at 120 Hz, 20°C.
• RoHS Compliant: Conforms to RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

• Equipment operating in voltage-fluctuating areas: Bulk energy storage and smoothing where supply voltage varies, leveraging the part’s extended voltage range and safety features.
• General-purpose power electronics: Filtering and decoupling in power supplies and converters that require a high-voltage electrolytic capacitor with elevated-temperature endurance.
• Industrial equipment: Energy storage and ripple suppression in industrial systems exposed to higher ambient temperatures and transient voltages.

Unique Advantages

• Verified high-temperature endurance: 2000 hours at 105°C with rated ripple current ensures stable capacitance and controlled loss after prolonged elevated-temperature stress.
• Extended voltage capability: 420 V rating provides headroom for higher-voltage designs within the LAK series offerings.
• Designed for safety under abnormal voltage: Improved safety features and a pressure-relief vent reduce risk of hazardous failure modes during overvoltage events.
• Measured electrical characteristics: Explicit leakage current formula and tan δ limit provide predictable performance metrics for design validation.
• Robust mounting: Snap-in radial can package delivers reliable mechanical retention for power modules and assemblies.
• Regulatory compliance: RoHS compliance supports use in regions requiring restricted substance adherence.

Why Choose LAKW6221MELB40?

LAKW6221MELB40 is positioned for designers needing a high-voltage, high-temperature aluminum electrolytic capacitor with validated endurance and safety characteristics. Its combination of 420 V rating, 220 µF capacitance, and snap-in packaging makes it suitable for general-purpose power smoothing in environments where supply voltages fluctuate and thermal stress is a concern.

This part offers clear, test-backed specifications—leakage current formula, tan δ limit, ripple current figures, and endurance results—that simplify electrical validation and reliability assessment for long-life equipment. It is well suited to engineers and procurement teams specifying robust passive components for industrial and power-electronics designs.

If you would like pricing, availability or a formal quote for LAKW6221MELB40, please submit a request or inquiry to receive detailed ordering and lead-time information.