LKX2G221MESZ50

The LKX2G221MESZ50 is a snap‑in terminal aluminum electrolytic capacitor from Nichicon's LKX series, rated at 220 µF and 400 V. It is designed for use in audio equipment and switching power supplies where high‑voltage filtering and acoustic performance are important.

Selected materials and LKX series construction aim to deliver superior acoustic sound while providing reliable operation up to 105°C. The part is RoHS compliant and targeted at general‑purpose electronic designs requiring a polarized, high‑voltage snap‑in capacitor.

Key Features

• Core Type — Aluminum electrolytic capacitor in a radial, can snap‑in package for secure PCB mounting and robust mechanical retention.
• Capacitance & Voltage — 220 µF nominal capacitance with a rated voltage of 400 V and tolerance of ±20% (–20%~20%).
• Temperature & Endurance — Operates from –25°C to +105°C with an endurance rating of 2000 hours at 105°C under rated conditions.
• Ripple Current Capability — Rated ripple current of 1.1 A at 120 Hz and 1.573 A at 50 kHz to support smoothing in power supply applications.
• Acoustic‑Oriented Materials — Selected materials and series design targeted to achieve superior acoustic sound for audio equipment applications.
• Leakage & Loss Characteristics — Leakage current meets LKX series limits (I ≤ 3√3V μA after 5 minutes at 20°C) with controlled tan δ per series measurements at 120 Hz, 20°C.
• Compliance & Polarization — Polarized device and compliant with the RoHS directive (2011/65/EU, (EU)2015/863).
• Physical Size — Compact radial can dimensions: L × D = 5 × 2.2 cm for space‑efficient placement in assemblies.

Typical Applications

• Audio Equipment Power Supplies — Used for high‑voltage filtering in audio switching supplies where acoustic characteristics matter.
• Switching Power Supplies — Provides bulk capacitance and ripple smoothing on high‑voltage rails in SMPS designs.
• General Purpose Electronic Equipment — Suitable for electronic designs requiring a polarized, high‑voltage electrolytic with snap‑in mounting.
• Elevated‑Temperature Installations — Intended for applications that require operation up to 105°C with validated 2000‑hour endurance.

Unique Advantages

• High‑Voltage Filtering Capability: 400 V rating supports filtering on elevated DC rails commonly found in power supply designs.
• Audio‑Focused Construction: Selected materials and LKX series tuning aim to improve acoustic sound quality in audio equipment.
• Rated for Elevated Temperatures: Endurance rating of 2000 hours at 105°C provides predictable performance in higher‑temperature environments.
• Robust Ripple Handling: Defined ripple current ratings at 120 Hz and 50 kHz help ensure reliable smoothing under load in both low‑ and high‑frequency conditions.
• Secure Snap‑In Mounting: Radial, can snap‑in package simplifies PCB assembly and provides mechanical stability in power modules.
• Regulatory Compliance: RoHS compliance supports restricted‑substance requirements in modern electronics manufacturing.

Why Choose LKX2G221MESZ50?

The LKX2G221MESZ50 combines high voltage capability, audio‑oriented materials, and snap‑in mechanical packaging to meet the needs of designers building switching power supplies and audio equipment power rails. Its 220 µF/400 V rating, defined ripple currents, and 2000‑hour endurance at 105°C deliver a balanced specification set for demanding electronic environments.

Manufactured as part of Nichicon's LKX series and compliant with RoHS directives, this capacitor is suitable for engineers seeking a reliable polarized, high‑voltage solution with attention to acoustic performance and long‑term thermal stability.

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