LKX2G121MESY35

The LKX2G121MESY35 is an aluminum electrolytic capacitor in a snap-in terminal (radial can) package designed for audio equipment and switching power supplies. It combines a 120 µF capacitance with a 400 V rated voltage and is built to operate across an extended temperature range for demanding power applications.

Designed as part of Nichicon’s 105°C standard series, this part uses selected materials to support superior acoustic sound and is RoHS compliant, making it suitable where audio quality and regulatory compliance are required.

Key Features

• Capacitance & Voltage: 120 µF nominal capacitance with a 400 V rated voltage suitable for high-voltage filter and smoothing applications.
• Tolerance & Polarization: Capacitance tolerance of −20% to +20% and polarized construction for correct orientation in DC circuits.
• Temperature & Endurance: Operating temperature range −25°C to 105°C with a rated endurance of 2000 hours at 105°C under D.C. bias plus rated ripple current.
• Ripple Current Performance: Rated ripple current of 730 mA at 120 Hz and 1.044 A at 50 kHz, supporting both low- and high-frequency ripple environments.
• Package & Mounting: Radial, can snap-in package for secure board mounting in power assemblies and easy mechanical retention.
• Acoustic Material Selection: Constructed using selected materials intended to achieve superior acoustic sound for audio-focused power stages.
• Regulatory Compliance: Compliant with RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

• Audio Equipment: Bulk filtering and power smoothing in audio power supplies where selected materials support improved acoustic characteristics.
• Switching Power Supplies: Energy storage and ripple filtering in SMPS designs operating at higher voltages and elevated temperatures.
• General Purpose Power Electronics: Decoupling and smoothing in industrial and consumer power circuits requiring 400 V ratings and robust ripple handling.

Unique Advantages

• High Voltage Capability: 400 V rating enables use in high-voltage rails without needing parallel parts to achieve voltage requirements.
• Designed for Elevated Temperatures: Endurance specified at 2000 hours at 105°C supports reliable operation in hot operating environments.
• Frequency Versatility: Measured ripple current figures at both 120 Hz and 50 kHz indicate suitability across low- and high-frequency ripple conditions.
• Audio-Focused Material Selection: Materials selected to enhance acoustic sound make the part a fit for audio-centric power stages.
• Snap-In Radial Package: Snap-in mounting provides mechanical stability and straightforward installation in power supply modules.
• RoHS Compliant: Meets RoHS directive requirements for lead-free manufacturing and regulatory conformity.

Why Choose LKX2G121MESY35?

LKX2G121MESY35 targets designs that require a 120 µF, 400 V electrolytic capacitor capable of sustained operation at elevated temperatures and under real-world ripple conditions. Its snap-in radial form factor and specified ripple performance make it appropriate for power supplies and audio equipment where both electrical robustness and acoustic considerations matter.

This component is suited to engineers and procurement teams building high-voltage power stages, audio amplifiers, and general-purpose industrial power electronics who need a RoHS-compliant, endurance-rated capacitor with clear, verifiable specifications.

Request a quote or submit an inquiry to receive pricing, availability, and technical support information for LKX2G121MESY35.