LAKW6221MELC35

The LAKW6221MELC35 from Nichicon is a snap-in terminal aluminum electrolytic capacitor in the LAK series, offering 220 µF capacitance at a 420 V rating. It is a general-purpose, polarized can-type capacitor designed for applications that require high-voltage bulk capacitance and reliable performance at elevated temperatures.

Key value propositions include endurance under rated ripple current (2000 hours at 105°C), improved safety features for abnormally excessive voltage, and support across an extended voltage range (200 V, 400 V and 420 V). The part is RoHS compliant (2011/65/EU, (EU)2015/863).

Key Features

• Capacitance and Voltage — 220 µF nominal capacitance with a 420 V rated voltage and capacitance tolerance of ±20% (120 Hz, 20°C).
• High-Temperature Endurance — Rated for operation up to 105°C and specified to withstand 2000 hours application of rated ripple current at 105°C.
• Safety and Overvoltage Handling — Improved safety features for abnormally excessive voltage; pressure-relief vent behavior described in the LAK series specifications.
• Ripple Performance — Rated ripple current of 1 A at 120 Hz and 1.15 A at 10 kHz for predictable filtering performance under specified conditions.
• Mounting and Package — Snap-in terminal, radial can (snap-in) package for secure, through-hole PCB mounting.
• Polarized, General-Purpose Use — Polarized aluminum electrolytic designed for a range of general-purpose power applications and compliant with RoHS directives.
• Extended Voltage Range — Part of a series available in 200 V, 400 V and 420 V options for flexibility in higher-voltage designs.
• Compact Footprint — Size dimensions L: 3.5 × D: 3.5 cm to assist in layout planning.

Typical Applications

• General Purpose Electronics — Bulk capacitance and smoothing where a polarized, high-voltage electrolytic is required.
• Equipment in Voltage-Fluctuating Areas — Suited for use in equipment exposed to fluctuating supply voltages due to improved safety and extended voltage capability.
• High-temperature Environments — Applicable for designs that require operation up to 105°C and sustained ripple endurance.

Unique Advantages

• High Voltage Capability: 420 V rating provides voltage margin for higher-voltage DC circuits within the LAK series.
• Thermal Endurance: 2000-hour rated ripple endurance at 105°C supports prolonged operation under elevated temperature stress.
• Overvoltage Safety Features: Improved safety design and pressure-relief characteristics reduce risk under abnormal voltage conditions.
• Predictable Ripple Handling: Specified ripple current values at 120 Hz and 10 kHz enable reliable filtering and smoothing behavior.
• Secure Snap-in Mounting: Radial snap-in can offers mechanical stability for through-hole assembly.
• Regulatory Compliance: RoHS compliant to relevant EU directives (2011/65/EU, (EU)2015/863).

Why Choose LAKW6221MELC35?

The LAKW6221MELC35 is positioned for designs that require a polarized, high-voltage aluminum electrolytic with verified endurance under rated ripple current at elevated temperature. With a 420 V rating, 220 µF capacitance, and LAK series safety features, it addresses requirements for equipment operating in environments with voltage fluctuations and thermal stress.

This part is suitable for engineers and procurement teams specifying reliable, RoHS-compliant bulk capacitance for general-purpose power applications that demand predictable ripple performance and extended voltage options within the LAK series.

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