LKX2E221MESZ25

The LKX2E221MESZ25 is a snap-in, radial can aluminum electrolytic capacitor designed for use in audio equipment and switching power supplies. It provides 220 µF capacitance at a 250 V rating with polarized construction and is intended for general-purpose power filtering and energy storage.

Built from materials selected for acoustic performance and long-term stability, this component targets power-electronics designs that require robust ripple handling and elevated temperature endurance.

Key Features

• Capacitance & Voltage — 220 µF nominal capacitance with a rated voltage of 250 V and capacitance tolerance of ±20%.
• Temperature & Endurance — Rated for operation from −40 °C to +105 °C with an endurance specification of 2000 hours at 105 °C under DC bias plus rated ripple current.
• Mounting & Package — Snap-in terminal, radial can (snap-in) package for secure board installation; physical size L: 2.5 × D: 2.2 cm.
• Ripple Current Capability — Rated ripple current of 1 A at 120 Hz and 1.5 A at 50 kHz, suitable for both low- and higher-frequency ripple environments.
• Polarized Electrolytic — Polarized capacitor construction for DC power applications.
• Acoustic-focused Materials — Selected materials aimed to support superior acoustic sound in audio equipment applications.
• Environmental Compliance — RoHS compliant.

Typical Applications

• Audio Equipment Power Supplies — Bulk filtering and smoothing in power rails for audio amplifiers and related equipment where acoustic performance and stability are important.
• Switching Power Supplies — Energy storage and ripple attenuation in SMPS designs operating up to 250 V DC.
• General-Purpose Power Electronics — Decoupling and bulk capacitance for industrial and consumer electronic power stages.

Unique Advantages

• High-temperature endurance: Rated operation to 105 °C with a 2000-hour endurance spec provides predictable lifetime behavior in elevated-temperature assemblies.
• High-voltage capability: 250 V rating enables use on higher DC rails common in power-supply designs.
• Snap-in mounting: Snap-in terminals offer secure mechanical retention and straightforward insertion for through-hole assemblies.
• Frequency-flexible ripple handling: Specified ripple current at both 120 Hz and 50 kHz supports performance across low- and high-frequency ripple conditions.
• Audio-oriented material selection: Materials chosen to support acoustic performance make this part suitable for audio-focused power designs.
• Regulatory alignment: RoHS compliance addresses lead-free and restricted-substance requirements in many markets.

Why Choose LKX2E221MESZ25?

The LKX2E221MESZ25 balances bulk capacitance, a 250 V rating, and elevated-temperature endurance in a snap-in radial can package tailored for audio and switching power-supply applications. Its specified ripple current at both low and high frequencies and materials selected for acoustic performance make it a practical choice when reliability and sound-related behavior matter.

This part is well suited to designers seeking a polarized, general-purpose electrolytic for higher-voltage power rails where secure snap-in mounting, RoHS compliance, and documented endurance at 105 °C are required.

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