LKX2W331MESC35

The LKX2W331MESC35 is an aluminum electrolytic capacitor in a snap-in radial can, part of Nichicon's LKX series. It is designed for audio equipment and switching power supplies, using selected materials to achieve superior acoustic sound while providing high-voltage bulk capacitance.

This polarized capacitor is specified for operation at elevated temperatures and meets RoHS requirements (2011/65/EU, (EU)2015/863), making it suitable for general-purpose power-filtering and audio applications that require a 450 V rating with 330 µF capacitance.

Key Features

• Capacitance & Voltage — 330 µF nominal capacitance with a 450 V rated voltage, providing substantial bulk energy storage for high-voltage rails.
• Snap-in Radial Can — Snap-in terminal type and radial can package for secure mounting in power assemblies and chassis-mounted designs.
• Acoustic-Optimized Materials — Selected materials in the LKX series are chosen to achieve superior acoustic sound for audio equipment.
• Operating Temperature & Endurance — Rated for –25°C to +105°C (for 400–450 V) with an endurance rating of 2000 hours at 105°C under DC bias plus rated ripple current.
• Ripple Current Specifications — Rated ripple current: 1.38 A at 120 Hz and 1.973 A at 50 kHz, enabling designers to size components for both mains-frequency and high-frequency switching ripple.
• Tolerance & Polarization — Capacitance tolerance of ±20% (measured at 120 Hz, 20°C); polarized device for DC applications.
• Low-Temperature Impedance Stability — For 400–450 V parts, Z(–25°C)/Z(+20°C) ≤ 8, providing guidance on impedance change in cold environments.
• Regulatory Compliance — RoHS compliant (2011/65/EU, (EU)2015/863).

Typical Applications

• Audio Equipment — Bulk and smoothing capacitance in audio power supplies where selected materials help maintain acoustic quality.
• Switching Power Supplies — High-voltage bulk filter capacitor for smoothing and energy storage in switch-mode power supply designs.
• General-Purpose Power Filtering — High-voltage decoupling and reservoir capacitor for industrial and electronic power systems requiring 450 V ratings.

Unique Advantages

• High Voltage Handling: 450 V rating supports high-voltage rails without needing parallel or series arrangements.
• Designed for Elevated Temperatures: 2000 hours endurance at 105°C under rated conditions provides predictable long-term performance in hot environments.
• Acoustic Performance: Materials selected for the LKX series contribute to improved sound characteristics when used in audio equipment.
• Secure Mechanical Mounting: Snap-in radial can construction simplifies assembly and provides robust retention in power electronics chassis.
• Ripple Current Detail: Published ripple current values at both 120 Hz and 50 kHz allow accurate thermal and ripple budgeting for mains and switching frequencies.
• RoHS Compliance: Meets applicable RoHS directives for environmentally regulated designs.

Why Choose LKX2W331MESC35?

The LKX2W331MESC35 offers a balanced combination of high-voltage capability and audio-focused material selection within Nichicon’s LKX 105°C series. Its 330 µF / 450 V rating, specified ripple currents, and specified endurance at elevated temperature make it a practical choice for designers of audio equipment and switching power supplies who need reliable bulk capacitance with attention to acoustic performance.

This part is suited for engineers and procurement teams specifying high-voltage reservoir and filter capacitors for general-purpose power systems and audio applications where long-term stability at elevated temperatures and RoHS compliance are required.

If you would like pricing, availability, or a formal quote for LKX2W331MESC35, request a quote or contact sales to discuss your application requirements and lead times.