LKX2E681MESA50

The LKX2E681MESA50 from Nichicon is an aluminum electrolytic capacitor in a snap‑in, radial can package, engineered for use in audio equipment and switching power supplies. It combines a 680 μF capacitance with a 250 V rated voltage, selected materials for superior acoustic sound, and compliance with RoHS directives.

This part is intended for general‑purpose power filtering and energy‑storage duties where a polarized, high‑voltage electrolytic with elevated temperature capability is required.

Key Features

• Electrolytic Core & Mounting Aluminum electrolytic construction with polarized terminals and snap‑in radial can mounting for board/chassis insertion.
• Capacitance & Voltage 680 μF nominal capacitance at a rated voltage of 250 V with ±20% tolerance (120 Hz, 20°C).
• Temperature Range & Endurance Operates from –40°C to +105°C with an endurance rating of 2000 hours at 105°C under DC bias plus rated ripple current.
• Ripple Current Handling Rated ripple current: 1.7 A at 120 Hz and 2.55 A at 50 kHz; frequency coefficient reaches up to 1.50 at 50 kHz (200–250 V range).
• Physical Size Radial, can (snap‑in) package with nominal dimensions L: 5 × D: 2.5 cm for compact power assemblies.
• Regulatory Compliant with RoHS (2011/65/EU, (EU)2015/863).

Typical Applications

• Audio Equipment Used in power supply filtering and energy storage where selected materials improve acoustic sound quality.
• Switching Power Supplies Bulk smoothing, decoupling and energy reservoir duties in SMPS designs operating up to 250 V.
• General Purpose Power Filtering Suitable for general purpose power electronics requiring a polarized, high‑voltage electrolytic capacitor with elevated temperature capability.

Unique Advantages

• Acoustic‑grade materials: Selected materials are specified to achieve superior acoustic sound, addressing audio performance concerns.
• High temperature endurance: Rated for operation up to 105°C with a 2000‑hour endurance specification at that temperature for reliable life in hot environments.
• Measured ripple capability: Explicit ripple ratings at 120 Hz and 50 kHz (1.7 A and 2.55 A respectively) and documented frequency coefficients enable predictable thermal and electrical design.
• Polarized, snap‑in package: Snap‑in radial can construction provides a robust mechanical mount suited to power assemblies.
• RoHS compliance: Meets current RoHS requirements for restricted substances, simplifying regulatory compliance.

Why Choose LKX2E681MESA50?

The LKX2E681MESA50 positions itself as a practical solution for designers needing a polarized, high‑voltage electrolytic capacitor with audio‑oriented material selection and documented ripple performance. Its combination of 680 μF at 250 V, a wide operating temperature range, and a 2000‑hour endurance rating at 105°C make it appropriate for demanding power filtering in audio equipment and switching supplies.

Manufactured as part of Nichicon’s LKX series and compliant with RoHS, this part offers a balance of acoustic consideration, electrical performance, and regulatory readiness for engineers specifying capacitors into production power systems.

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