LKX2D561MESZ40

The LKX2D561MESZ40 is a snap-in aluminum electrolytic capacitor designed for power filtering and energy storage in audio equipment and switching power supplies. As part of Nichicon's LKX series, it provides a 560 µF capacitance at 200 V in a compact φ22×40 mm snap-in can, targeting general-purpose power applications that require reliable high-temperature performance.

Key Features

• Capacitance & Voltage — 560 µF rated capacitance at 200 V for bulk filtering and smoothing in power rails.
• Snap-In Mounting — Snap-in (radial, can) package designed for secure board retention and high-current power assemblies; supplied in tray packing.
• High-Temperature Endurance — Rated for operation from −40°C to +105°C with an endurance rating of 2000 hours at 105°C when subjected to DC bias plus rated ripple current.
• Ripple Current Capability — Handles 1.6 A at 120 Hz (low frequency) and 2.4 A at 50 kHz (high frequency), supporting demanding ripple environments.
• Leakage Current — Initial leakage current specified as 1000 µA; datasheet leakage condition also follows I ≤ 3√C·V (µA) after 5 minutes' application of rated voltage at 20°C.
• Tolerance & Polarization — Capacitance tolerance ±20% (120 Hz, 20°C); polarized electrolytic suitable for DC power circuits.
• Compact Package Size — Physical size φ22 × 40 mm (D × L), listed as L: 4 cm × D: 2.2 cm for space-efficient power designs.
• RoHS Compliant — Manufactured in compliance with RoHS requirements.

Typical Applications

• Audio equipment — Bulk filtering and energy storage in power supplies where selected materials and construction support high-quality acoustic performance.
• Switching power supplies — Output smoothing and bulk capacitance for switching regulators and power conversion stages.
• General-purpose power systems — DC link filtering and reservoir capacitance in industrial and consumer power electronics.

Unique Advantages

• High-temperature reliability: 2000 hours at 105°C endurance provides predictable performance under elevated operating temperatures.
• Robust ripple handling: Specified ripple currents of 1.6 A (120 Hz) and 2.4 A (50 kHz) match real-world AC stress in power supplies.
• Frequency-friendly performance: Series frequency coefficient data indicates increased effective ripple capability at higher frequencies (up to a coefficient of 1.50 at 50 kHz for the 200 V range).
• Secure, serviceable mounting: Snap-in radial can simplifies assembly and mechanical retention for high-current board layouts.
• Designed for audio use: Selected materials and LKX series design choices address acoustic performance considerations in audio power systems.
• Regulatory compliance: RoHS compliance supports environmental and regulatory requirements for commercial products.

Why Choose LKX2D561MESZ40?

The LKX2D561MESZ40 combines a high 200 V rating with 560 µF capacitance in a compact snap-in can optimized for audio and switching power applications. Its defined ripple current ratings, wide −40°C to +105°C operating range and 2000-hour endurance at 105°C make it a practical choice for designers seeking dependable bulk capacitance and thermal stability in general-purpose power circuits.

This part is well suited to engineers building power supplies and audio power stages who need verified high-temperature performance, measurable leakage and ripple specifications, and the mechanical benefits of a snap-in radial package backed by Nichicon's LKX series datasheet guidance.

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