LKX2G181MESZ40

The LKX2G181MESZ40 is a snap-in terminal aluminum electrolytic capacitor from Nichicon's LKX series, offering 180 µF capacitance at a 400 V rated voltage. It is designed for use in audio equipment and switching power supplies where durable high-voltage smoothing and power-filtering are required.

Built as part of the 105°C standard series, this part uses selected materials to support superior acoustic sound and is RoHS compliant (2011/65/EU, (EU)2015/863). Key electrical and mechanical characteristics include high ripple current capability and a compact radial, snap-in can package.

Key Features

• Electrical Capacity — 180 µF capacitance with a rated voltage of 400 V and capacitance tolerance of ±20% (120 Hz, 20°C), suitable for high-voltage filtering and energy storage in power rails.
• High-Temperature Endurance — Rated for continuous operation up to 105°C with an endurance specification of 2000 hours at 105°C under rated voltage and ripple current.
• Ripple Current Performance — Supports 950 mA at 120 Hz and 1.359 A at 50 kHz, enabling effective smoothing under significant AC ripple loads in switching supplies.
• Polarized Snap-in Package — Radial, can-style snap-in mounting for robust mechanical retention and easy board assembly in power supply modules.
• Operating Range — Specified operating temperature range of −25°C to +105°C for this 400 V part, matching the LKX series’ application profile for higher-voltage components.
• Environmental Compliance — RoHS compliant (2011/65/EU, (EU)2015/863), meeting contemporary environmental requirements for electronic assemblies.
• Compact Footprint — Physical size L: 4 × D: 2.2 cm (radial can) to fit power supply layouts where board space is constrained.

Typical Applications

• Audio Equipment Power Supplies — Used for DC smoothing and energy storage in switching power supplies where material selection supports improved acoustic characteristics.
• Switching Power Supplies — Provides bulk capacitance and ripple suppression at 400 V rails in power-conversion circuits.
• General Purpose Power Filtering — Applicable wherever polarized, high-voltage electrolytic capacitance is required for bulk filtering and decoupling in industrial and consumer electronics.

Unique Advantages

• Audio-focused material selection — Manufactured with selected materials in the 105°C series to help achieve superior acoustic sound in audio applications.
• High-voltage capability — 400 V rated voltage enables use on higher-voltage rails without uprating components.
• Robust ripple handling — Measured ripple current ratings (950 mA at 120 Hz; 1.359 A at 50 kHz) support reliable operation under typical switching-supply ripple conditions.
• Long high-temperature life — Endurance specified at 2000 hours at 105°C under rated conditions for predictable long-term performance in elevated-temperature environments.
• Assembly-friendly snap-in design — Radial snap-in can package simplifies PCB mounting and mechanical retention in power modules.
• Regulatory compliance — RoHS compliance supports adoption in designs targeting current environmental standards.

Why Choose LKX2G181MESZ40?

The LKX2G181MESZ40 positions itself as a reliable high-voltage electrolytic solution for designers of audio equipment and switching power supplies who need robust ripple performance, elevated temperature endurance, and materials selected for acoustic quality. As part of Nichicon’s LKX series, it combines 400 V capability with 180 µF bulk capacitance in a snap-in, board-ready package.

This part is well suited for engineers specifying components for high-voltage filtering and energy storage in compact power assemblies, offering verifiable endurance and ripple specifications to support predictable system behavior over product life.

Request a quote or submit an inquiry for pricing and availability to evaluate LKX2G181MESZ40 for your next power or audio design.