LKX2W121MESZ35

The LKX2W121MESZ35 is a snap-in terminal aluminum electrolytic capacitor optimized for audio equipment and switching power supplies. It combines a 120 µF capacitance with a 450 V voltage rating in a radial, snap‑in can package for robust board mounting.

Designed as part of Nichicon’s 105°C standard series, this capacitor uses selected materials to achieve superior acoustic sound and is RoHS compliant.

Key Features

• Electrical Capacity: 120 µF nominal capacitance with ±20% tolerance for bulk energy storage and filtering.
• High Voltage Rating: Rated for 450 V to support high-voltage rail filtering in power electronics.
• Thermal & Endurance: Operating temperature range of −25°C to +105°C and a rated lifetime of 2000 hours at 105°C under specified endurance test conditions.
• Ripple Current Performance: Rated ripple current of 720 mA at 120 Hz and 1.03 A at 50 kHz to handle common low- and high-frequency ripple in power supplies.
• Mechanical & Mounting: Snap‑in (radial, can - snap‑in) package for secure, through‑hole board attachment; compact dimensions L: 3.5 × D: 2.2 cm.
• Audio-focused Materials: Manufactured with selected materials intended to deliver superior acoustic sound for audio applications.
• Polarized Design: Polar capacitor suited for DC filtering and bulk smoothing in polarized circuits.
• Regulatory: Compliant with RoHS requirements (2011/65/EU, (EU)2015/863).

Typical Applications

• Audio Equipment: Power-supply filtering and smoothing where material selection and acoustic performance support improved sound quality.
• Switching Power Supplies: Bulk and output-stage filtering on high-voltage rails in switch-mode power supplies.
• General Purpose Power Electronics: High-voltage DC smoothing and energy storage for general-purpose designs requiring polarized electrolytic capacitors.

Unique Advantages

• High-voltage capability: 450 V rating enables use on higher-voltage rails without series stacking.
• Audio-oriented construction: Selected materials target superior acoustic sound, addressing electrical and sonic performance in audio power circuits.
• Robust thermal specification: 105°C operating temperature and 2000-hour endurance provide predictable performance under elevated thermal stress.
• Good ripple handling: Specified ripple current values at 120 Hz and 50 kHz support both low- and high-frequency filtering requirements.
• Secure snap-in mounting: Radial snap‑in can simplifies assembly and provides mechanical stability on the PCB.
• RoHS compliant: Meets current RoHS directives for regulatory and environmental compliance.

Why Choose LKX2W121MESZ35?

The LKX2W121MESZ35 is positioned for designers who need a high-voltage, audio-aware electrolytic capacitor with reliable thermal endurance. Its 120 µF / 450 V rating, 105°C capability, and specified ripple current figures make it suitable for high-voltage filtering and smoothing in audio equipment and switching power supplies where acoustic performance and durability matter.

From a compact snap‑in package and polarized can construction to RoHS compliance and a defined 2000‑hour endurance at 105°C, this Nichicon component offers clear, verifiable specifications for procurement and design decisions in demanding power and audio applications.

Request a quote or contact sales to discuss availability, lead times, and how LKX2W121MESZ35 can fit your next power or audio design.