LKX2D391MESZ30

The LKX2D391MESZ30 is a 390 µF, 200 V aluminum electrolytic capacitor in a snap‑in radial can designed for audio equipment and switching power supplies. It pairs high‑temperature endurance with compact snap‑in mounting to address high‑voltage smoothing and ripple demands in general‑purpose power designs.

Manufactured by Nichicon, this RoHS‑compliant part delivers rated performance at up to 105°C and is offered in tray packaging for production use.

Key Features

• Capacitance and Voltage: 390 µF nominal capacitance with a 200 V rated voltage and ±20% tolerance, suitable for high‑voltage filtering and bulk energy storage.
• Snap‑in Radial Can Package: φ22 × 30 mm can with snap‑in terminals for secure mounting and mechanical stability in power assemblies; supplied in tray packing for production handling.
• High Temperature Endurance: Rated for operation from −40°C to 105°C with an endurance specification of 2000 hours at 105°C under rated DC bias plus ripple current.
• Ripple Current Capability: Rated ripple current of 1.31 A at 120 Hz and 1.965 A at higher frequency operation, supporting power supply ripple handling and decoupling.
• Loss and Leakage Characteristics: Specified tan δ of 0.15 and a leakage current of 830 µA (measured after voltage application), providing predictable dissipation and self‑discharge behavior.
• Audio‑Focused Materials: Constructed using selected materials aimed at achieving superior acoustic sound, making it appropriate for audio equipment applications.
• Polarized, General Purpose: Polarized aluminum electrolytic design for general‑purpose power applications where polarity is observed.
• Regulatory Compliance: Compliant with RoHS (2011/65/EU, (EU)2015/863).

Typical Applications

• Audio Equipment: Bulk filtering and power smoothing in audio amplifiers and audio power supplies where selected materials and 105°C endurance support consistent sound performance.
• Switching Power Supplies: High‑voltage bulk capacitance and ripple absorption for 200 V rails in switching power supply designs.
• General‑Purpose Power Electronics: Energy storage, decoupling, and smoothing in industrial and consumer power circuits that require a 200 V, high‑temperature capacitor.

Unique Advantages

• High‑voltage capability: 200 V rating enables use on elevated DC rails without multiple stacked components.
• Designed for elevated temperatures: 2000‑hour endurance at 105°C supports long life under high operating temperatures and DC bias conditions.
• Strong ripple handling: Rated ripple currents of 1.31 A (120 Hz) and 1.965 A at higher frequency help manage AC stress in power rails and switching environments.
• Compact snap‑in form factor: φ22 × 30 mm snap‑in can provides a space‑efficient solution with secure PCB mounting for production assemblies.
• Audio‑oriented construction: Materials selected to improve acoustic sound characteristics make the part well suited for audio‑centric power supplies.
• RoHS compliant and factory packaged: Environmentally compliant and supplied in tray packing for streamlined manufacturing integration.

Why Choose LKX2D391MESZ30?

The LKX2D391MESZ30 balances high voltage capability, rated ripple performance, and elevated temperature endurance in a compact snap‑in aluminum electrolytic package. It is well suited for designers of audio equipment and switching power supplies who need predictable high‑temperature behavior and reliable bulk capacitance on 200 V rails.

Produced by Nichicon and supplied RoHS‑compliant in tray packaging, this part delivers practical long‑term value for production applications that require robust power filtering, ripple management, and consistent acoustic performance.

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