LKX2G221MESC25

The LKX2G221MESC25 is a snap-in terminal aluminum electrolytic capacitor engineered for audio equipment and switching power supplies. It delivers 220 µF at a 400 V rating in a radial, can-style snap-in package designed for high-temperature operation and reliable power filtering.

Built as part of Nichicon’s 105°C standard series with selected materials to achieve superior acoustic sound, this RoHS-compliant capacitor is intended for general-purpose power and audio applications that require high-voltage filtering and long-term stability.

Key Features

• Capacitance & Voltage — 220 µF nominal capacitance at a 400 V rated voltage, suitable for high-voltage filtering and energy storage in power electronics and audio power rails.
• High-Temperature Endurance — Designed for operation from –25°C to +105°C with an endurance rating of 2000 hours at 105°C under DC bias plus rated ripple current conditions.
• Ripple Current Performance — Rated ripple current of 1.1 A at 120 Hz and 1.573 A at 50 kHz, with frequency coefficients provided in the series datasheet to scale ripple capability across operating frequencies.
• Package & Mounting — Radial, can-type snap-in package with snap-in terminals for robust board retention and simplified assembly in power supply modules.
• Acoustic-Grade Materials — Selected materials and construction to support superior acoustic sound quality for audio equipment integration.
• Polarized Design & Tolerance — Polar capacitor with capacitance tolerance of ±20% (measured at 120 Hz, 20°C), enabling predictable filtering behavior in biased circuits.
• Leakage Current Specification — Leakage current meets the datasheet condition: I ≤ 3√3V (µA) after 5 minutes’ application of rated voltage at 20°C (C: rated capacitance, V: voltage).
• RoHS Compliance — Conforms to the RoHS directive (2011/65/EU, (EU)2015/863) for restricted substances.

Typical Applications

• Audio Equipment Power Filtering — Used in amplifier and audio power supply rails to provide stable bulk capacitance and contribute to improved acoustic performance.
• Switching Power Supplies — Acts as bulk and smoothing capacitors on high-voltage DC rails in switching regulators and power conversion stages.
• General-Purpose Power Electronics — Suitable for power filtering and energy storage in industrial and consumer electronic designs that require 400 V rated capacitance.

Unique Advantages

• High-Voltage Capability: 400 V rating provides headroom for high-voltage power supply and audio applications where higher DC bus voltages are present.
• Thermal Reliability: Rated for operation up to 105°C with a 2000-hour endurance specification at 105°C, supporting designs that operate at elevated temperatures.
• Frequency-Aware Ripple Performance: Specified ripple currents at 120 Hz and 50 kHz with frequency coefficients in the series datasheet allow designers to size capacitors based on operating ripple frequency.
• Assembly-Friendly Snap-In Package: Radial, snap-in terminals simplify board mounting and mechanical retention for through-hole power assemblies.
• Audio-Focused Material Selection: Materials chosen to enhance acoustic characteristics, making the part suitable for audio-focused power supply designs.
• Regulatory Compliance: RoHS compliance supports environmental and regulatory requirements for global product deployment.

Why Choose LKX2G221MESC25?

The LKX2G221MESC25 combines high-voltage capability, thermal endurance to 105°C, and audio-oriented material selection in a snap-in aluminum electrolytic package. It is positioned for engineers designing power and audio systems that need reliable bulk capacitance, controlled ripple-handling, and long-term stability under elevated temperatures.

This part is well suited to power supply designers, audio equipment manufacturers, and general-purpose electronics projects that require a 220 µF/400 V polarized capacitor with defined ripple characteristics and documented endurance and shelf-life behaviors.

Request a quote or submit an inquiry to check pricing and availability for LKX2G221MESC25 or to discuss application-specific requirements.