LKX2G181MESY50

The LKX2G181MESY50 is a 180 µF, 400 V aluminum electrolytic capacitor in a snap-in radial can designed for audio equipment and switching power supplies. As part of Nichicon's LKX series, it combines high-voltage capability with a 105°C operating rating and materials selected to support superior acoustic sound.

Its snap-in terminal package and tray packing make it suitable for mass production assembly where robust mounting and reliable high-voltage bulk capacitance are required.

Key Features

• Electrical performance — 180 µF nominal capacitance at a rated voltage of 400 V with ±20% tolerance; polarized device for DC bulk and smoothing applications.
• High-temperature endurance — Rated for operation from –25°C to 105°C with an endurance specification of 2000 hours at 105°C under rated conditions.
• Ripple current capability — Rated ripple current of 950 mA at 120 Hz and 1.359 A at 50 kHz, enabling effective filtering at both low and high frequency ripple components.
• Mechanical and mounting — Snap-in (radial can) construction for secure PCB mounting; nominal size φ20 × 50 mm suitable for compact high-voltage designs.
• Audio-focused materials — Selected materials in the LKX series are chosen to achieve superior acoustic sound characteristics for audio equipment applications.
• Regulatory compliance — RoHS compliant.

Typical Applications

• Audio equipment — Bulk and smoothing capacitance in amplifier power supplies where selected materials support acoustic performance.
• Switching power supplies — High-voltage bulk capacitor and ripple smoothing in high-voltage DC rails of switch-mode power supplies.
• General-purpose power electronics — DC link, energy storage and filtering roles in industrial and consumer electronics designs requiring 400 V rated capacitance.

Unique Advantages

• High-voltage capability: 400 V rating provides margin for high-voltage power rails without stepping up component count.
• Designed for elevated temperatures: 105°C operating temperature and 2000-hour endurance at 105°C support reliable performance in thermally demanding assemblies.
• Wide ripple frequency response: Specified ripple current at 120 Hz and 50 kHz makes the device suitable for both mains-derived and high-frequency switching ripple environments.
• Snap-in radial form factor: Secure PCB mounting for automated assembly and mechanical stability in mass-production settings.
• Audio-optimized materials: Materials selection within the LKX series targets improved acoustic characteristics for sound-sensitive applications.
• RoHS compliant: Meets environmental directive requirements for restricted substances.

Why Choose LKX2G181MESY50?

The LKX2G181MESY50 is positioned for designs that require reliable high-voltage bulk capacitance with an emphasis on thermal endurance and acoustic-aware material selection. Its 400 V rating, 180 µF capacitance, and 105°C endurance profile make it a strong fit for audio power supplies, switching power supplies, and general-purpose power electronics where stable DC smoothing and ripple handling are essential.

As a snap-in radial can from Nichicon’s LKX series, it offers a balance of mechanical robustness for automated assembly and electrical characteristics tailored for long-term performance in demanding environments while maintaining RoHS compliance.

Request a quote or submit a request for pricing and availability for the LKX2G181MESY50 to evaluate it for your next high-voltage power or audio project.