LKX2G680MESY25

The LKX2G680MESY25 from Nichicon is a snap-in terminal aluminum electrolytic capacitor designed for audio equipment and switching power supplies. It is part of the LKX series and is specified for 400 V operation with a capacitance of 68 µF.

Engineered for elevated thermal endurance and acoustic emphasis, this polarized radial can is RoHS compliant and targets designers requiring stable high-voltage filtering and reservoir capacitance in general-purpose power electronics and audio applications.

Key Features

• Capacitance & Voltage — 68 µF rated capacitance at 400 V provides high-voltage energy storage suitable for power supply filtering and bulk decoupling.
• High-Temperature Endurance — Rated for operation up to 105°C with a specified lifetime of 2000 hours at 105°C, supporting prolonged operation under elevated temperature stress.
• Audio-Optimized Materials — Selected materials in the LKX series are used to achieve superior acoustic sound, making this part appropriate where audible performance matters.
• Polarized, Snap-in Package — Radial, can-type snap-in mounting simplifies board assembly and provides robust mechanical retention for high-current environments.
• Ripple Current Performance — Rated ripple currents include 490 mA at 120 Hz and 700.7 mA at 50 kHz, supporting both low- and high-frequency ripple conditions in switching supplies.
• Operating Range & Tolerance — Operating temperature from −25°C to 105°C with capacitance tolerance of ±20% (−20% to +20%).
• Regulatory Compliance — Compliant with the RoHS directive (2011/65/EU, (EU)2015/863), meeting lead-free and restricted-substance requirements.
• Compact Radial Can — Physical size specified as L: 2.5 × D: 2 cm for compact board-level integration where a snap-in can is preferred.

Typical Applications

• Switching Power Supplies — Used for bulk filtering and smoothing of high-voltage rails in SMPS designs where 400 V rated capacitance is required.
• Audio Equipment Power Sections — Employed in audio power supplies where selected materials and series-level acoustic focus contribute to improved audible performance.
• General-Purpose Power Electronics — Suitable as reservoir and decoupling capacitance in general-purpose high-voltage circuits that demand 105°C capability and snap-in mounting.

Unique Advantages

• High-Voltage Reliability: 400 V rating provides margin for high-voltage rails commonly found in power-supply and industrial applications.
• Thermal Durability: 2000 hours at 105°C endurance supports extended runtime in hot operating environments, reducing the need for frequent replacements.
• Audio-Focused Materials: Material selection aimed at superior acoustic sound offers a measurable advantage for designers of audio-grade power supplies.
• Dual-Frequency Ripple Capability: Specified ripple currents at both 120 Hz and 50 kHz demonstrate applicability across mains-frequency smoothing and high-frequency switching conditions.
• RoHS Compliance: Meets current restricted-substance requirements, simplifying regulatory compliance for commercial and consumer products.
• Board-Ready Snap-In Mounting: Radial snap-in can format streamlines PCB assembly and mechanical stability for higher-current applications.

Why Choose LKX2G680MESY25?

The LKX2G680MESY25 combines a 400 V rating with 68 µF capacitance in a snap-in radial can tailored for audio and switching power supply applications. Its 105°C rating and 2000-hour endurance make it a practical choice for designs that need sustained high-temperature performance and reliable bulk energy storage.

Manufactured by Nichicon as part of the LKX series, this part is suited to engineers and procurement teams specifying RoHS-compliant capacitors for high-voltage filtering, reservoir applications, and audio-focused power sections where material selection and ripple capability matter.

Request a quote or submit an inquiry to receive pricing, availability, and lead-time information for the LKX2G680MESY25.