LKX2G221MESB30

The LKX2G221MESB30 is a snap-in terminal aluminum electrolytic capacitor from Nichicon's LKX series, engineered for audio equipment and switching power supplies. It combines a 220 µF capacitance with a 400 V rating and is built to support high-temperature operation and extended endurance.

Designed with selected materials to achieve superior acoustic sound, this capacitor delivers polarized energy storage and power filtering for general-purpose and audio-specific supply applications while meeting RoHS (2011/65/EU, (EU)2015/863) requirements.

Key Features

• Capacitance & Voltage — 220 µF capacitance rated at 400 V for bulk energy storage and smoothing in high-voltage power rails.
• Snap-In Package — Radial, can-style snap-in mounting simplifies board assembly for power-supply modules and reduces installation time.
• High-Temperature Endurance — Rated for operation to 105°C and specified with 2000 hours endurance at 105°C under DC bias plus rated ripple current, ensuring predictable long-term behavior in hot environments.
• Ripple Current Performance — Rated ripple current specified as 1.1 A at 120 Hz and 1.573 A at 50 kHz; frequency coefficients for the 400–450 V range are provided (e.g., 120 Hz = 1.00, 1 kHz = 1.30, 50 kHz+ = 1.43) to size for application-specific ripple conditions.
• Leakage and Loss Characteristics — Leakage current meets I ≤ 3√3V (µA) after 5 minutes at 20°C; tangent of loss angle (tan δ) is specified in the LKX series documentation for reliable AC performance measurement.
• Acoustic-Oriented Materials — Selected materials and construction targeted to achieve superior acoustic sound in audio equipment applications.
• Environmental Compliance — RoHS-compliant to the referenced directives.

Typical Applications

• Audio Equipment Power Supplies — Bulk filtering and smoothing in audio switching supplies where material selection and temperature endurance contribute to stable acoustic performance.
• Switching Power Supplies — Energy storage and ripple filtering for high-voltage power stages in general-purpose and audio-focused switching regulators.
• General-Purpose Power Filtering — DC bus and high-voltage smoothing in industrial and electronic systems requiring polarized aluminum electrolytic capacitors.

Unique Advantages

• High-Voltage Capacity: 220 µF at 400 V enables substantial energy storage and voltage smoothing in elevated-voltage designs.
• Designed for Acoustic Performance: Selected materials and LKX series construction are aimed at improving sound quality in audio applications.
• Snap-In Mounting: Radial snap-in package facilitates secure mechanical attachment and faster board assembly for power modules.
• Documented High-Temperature Endurance: 2000 hours at 105°C under rated conditions provides a clear specification for lifetime planning in warm environments.
• Frequency-Aware Ripple Rating: Published ripple current values and frequency coefficients let engineers size capacitors accurately across 50 Hz to 50 kHz+ operating conditions.
• RoHS Compliance: Meets applicable RoHS directives for restricted substances.

Why Choose LKX2G221MESB30?

LKX2G221MESB30 is positioned for designers who need a high-voltage, high-temperature aluminum electrolytic capacitor with acoustic-focused material selection for audio and switching power supply applications. Its combination of 220 µF at 400 V, snap-in mounting, and published ripple and endurance data makes it suitable for power rails where predictable electrical and thermal behavior is required.

As part of Nichicon's LKX series, this part offers documented performance characteristics—frequency coefficients, leakage limits, and endurance criteria—that support reliable design decisions and lifetime planning while maintaining RoHS compliance.

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