LKX2W151MESB25

The LKX2W151MESB25 is a snap-in terminal aluminum electrolytic capacitor from Nichicon's LKX series designed for audio equipment and switching power supplies. It pairs a 150 µF capacitance with a 450 V rating and is optimized for applications requiring high-voltage filtering and acoustic-conscious component selection.

Built as a 105°C standard-series part with selected materials to achieve superior acoustic sound, this capacitor is RoHS compliant and intended for general-purpose power applications where long-term thermal endurance and reliable ripple handling are required.

Key Features

• Capacitance & Voltage — 150 µF nominal capacitance rated at 450 V DC for high-voltage filtering and energy storage.
• Temperature & Endurance — Rated operating range to 105°C with a specified endurance of 2000 hours at 105°C under DC bias plus rated ripple current.
• Acoustic-grade Materials — Selected materials and series design focused on achieving superior acoustic sound for audio applications.
• Mounting & Package — Snap-in terminal type in a radial can (snap-in) package for secure mechanical retention on power PCBs.
• Ripple Current Handling — Specified ripple capability of 790 mA at 120 Hz and 1.13 A at 50 kHz, with frequency coefficients provided by the LKX series.
• Physical Dimensions & Tolerance — Compact footprint with dimensions approximately L: 2.5 × D: 3 cm and capacitance tolerance of ±20%.
• Polarized Design — Polarized electrolytic construction for DC power applications.
• Environmental Compliance — Compliant with the RoHS directive (2011/65/EU,(EU)2015/863).

Typical Applications

• Audio Equipment — Power rail smoothing and supply decoupling in audio amplifiers and audio-focused systems, leveraging selected materials for improved acoustic characteristics.
• Switching Power Supplies — Bulk and smoothing capacitor for high-voltage switching supplies where a 450 V rating and robust ripple handling are required.
• General-Purpose Power Filtering — Energy storage and ripple suppression in industrial and consumer power electronics within the specified temperature range.

Unique Advantages

• High Voltage Capability: 450 V rating enables use on higher DC bus voltages without series stacking.
• Designed for Audio Performance: Selected materials and LKX series construction support acoustic-sensitive applications.
• High-Temperature Reliability: Endurance rated for 2000 hours at 105°C under rated ripple current, supporting sustained thermal stress.
• Robust Ripple Handling: Specified ripple currents at 120 Hz (790 mA) and 50 kHz (1.13 A) provide clear design targets for low- and high-frequency ripple management.
• Secure PCB Mounting: Snap-in radial can package provides mechanical stability for power PCBs.
• Regulatory Compliance: RoHS-compliant construction supports environmentally restricted designs.

Why Choose LKX2W151MESB25?

The LKX2W151MESB25 positions itself as a high-voltage, audio-oriented electrolytic solution for designers who need reliable bulk capacitance in compact, snap-in packaging. Its 450 V rating, 150 µF capacitance, and specified ripple performance make it suitable for switching power supplies and audio power rails where thermal endurance and acoustic considerations matter.

This Nichicon LKX series part offers a combination of acoustic-minded material selection, RoHS compliance, and documented endurance at 105°C, making it a practical choice for engineers building robust power systems and audio equipment that require long-term stability under rated conditions.

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