LKX2G221MESA40

The LKX2G221MESA40 is an aluminum electrolytic capacitor in Nichicon’s LKX series, featuring a snap-in radial can and polarized construction. It is designed for audio equipment and switching power supply power rails where reliable high-voltage filtering and acoustic performance are required.

Selected materials are used to achieve superior acoustic sound while delivering stable performance across an operating temperature range of –25°C to 105°C. The part is RoHS compliant and rated for a 2000‑hour endurance at 105°C under rated conditions.

Key Features

• Capacitance & Voltage: 220 µF nominal capacitance at a 400 V rated voltage, suitable for high-voltage power filtering.
• Acoustic-optimized construction: Selected materials and LKX series design aimed at superior acoustic sound for audio equipment applications.
• Snap-in radial package: Snap-in terminal, radial can package for secure mechanical retention and straightforward assembly into power supply enclosures.
• Temperature and endurance: Operates from –25°C to 105°C with an endurance rating of 2000 hours at 105°C under DC bias plus rated ripple current.
• Ripple current performance: Rated ripple current of 1.1 A at 120 Hz and 1.573 A at 50 kHz, supporting AC ripple handling across low and high frequencies.
• Tolerance & polarity: Capacitance tolerance ±20%; polarized design for appropriate DC applications.
• Environmental compliance: Compliant with the RoHS directive (2011/65/EU, (EU)2015/863).
• Compact dimensions: Body size approximately 25 mm diameter × 40 mm length for space-conscious power designs.

Typical Applications

• Audio equipment power rails: Provides filtering and energy storage with materials selected to support improved acoustic characteristics in audio circuitry.
• Switching power supplies: Used on DC output and intermediate rails for smoothing and ripple reduction at high voltages.
• General-purpose power filtering: Suitable for consumer and industrial electronic designs requiring 400 V polarized capacitance and reliable endurance at elevated temperature.

Unique Advantages

• Audio-focused material selection: Designed to address acoustic performance, making it suitable where sound quality is a consideration in power stage components.
• High-voltage capability: 400 V rating enables use in higher-voltage rails common in switching supplies and power systems.
• Validated endurance at 105°C: 2000 hours of rated-life endurance under specified conditions supports reliability in elevated-temperature environments.
• Measurable ripple handling: Explicit ripple current specifications at both 120 Hz and 50 kHz allow designers to evaluate AC performance across frequency ranges.
• RoHS compliance: Meets applicable RoHS directives for lead-free design and regulatory alignment.
• Snap-in mounting: Mechanical snap-in terminals simplify secure installation in chassis and PCB assemblies where robust retention is needed.

Why Choose LKX2G221MESA40?

The LKX2G221MESA40 combines a 220 µF, 400 V polarized capacitor construction with LKX series materials selected for acoustic performance, making it a practical choice for audio equipment and switching power supply designers who require high-voltage filtering with attention to sound quality. Its specified ripple current ratings and 2000‑hour endurance at 105°C provide clear, verifiable performance metrics for reliability assessments.

This part is well suited to engineers and procurement teams specifying capacitors for high-voltage DC rails where RoHS compliance, snap-in mounting, and documented endurance under elevated temperature are important factors in long-term system design.

Request a quote or contact sales to discuss availability, lead times, and how LKX2G221MESA40 can meet your power-filtering and audio-design requirements.