LKG1K681MESYCK

The LKG1K681MESYCK is an aluminum electrolytic, snap‑in terminal capacitor from Nichicon's LKG series, engineered for audio equipment. It delivers 680 µF capacitance at an 80 V rating in a compact φ20 × 45L can designed for snap‑in PCB mounting.

Targeted at high‑fidelity audio applications, this unit combines low dissipation (tanδ 0.20 at 20°C/120 Hz), a rated low‑frequency ripple current of 2.1 A, and a 1000‑hour endurance at 85°C to support power smoothing and decoupling in audio power supplies and amplifier circuits.

Key Features

• Capacitance & Voltage: 680 µF nominal capacitance with an 80 V rated voltage and ±20% tolerance, suitable for higher‑voltage audio power rails.
• Audio‑grade LKG Series: Part of the LKG family designed for audio use; the suffix "CK" corresponds to TYPE‑III (Super Through) grade with gold‑plated terminal characteristics described in the series documentation.
• Low Dissipation (tanδ): tanδ (DF) 0.20 measured at 20°C, 120 Hz, indicating controlled dielectric losses for audio signal fidelity and stable performance under AC excitation.
• Ripple Handling: Low‑frequency ripple current rating of 2.1 A at 120 Hz supports smoothing of power supply fluctuations in audio systems.
• Leakage Current: Specified leakage current of 690 µA (measurement condition information provided in product data), useful when budgeting standby losses in powered audio equipment.
• Thermal & Endurance: Operating range −40°C to +85°C with 1000 hours lifetime at 85°C per endurance specification, enabling predictable life performance in typical audio environments.
• Mounting & Package: Snap‑in terminal, radial can package configured for PCB snap‑in installation; supplied in tray packing for assembly handling.
• RoHS Compliance: RoHS‑compliant construction as noted in the product documentation.

Typical Applications

• High‑fidelity audio power supplies: Bulk smoothing and energy storage on higher‑voltage rails in amplifiers and preamplifiers where low loss and steady ripple performance matter.
• Audio amplifier decoupling: Local decoupling for power stages to maintain supply stability during dynamic audio loads.
• Professional audio equipment: Power conditioning in mixers, signal processors, and other studio hardware that benefit from audio‑focused capacitor characteristics.

Unique Advantages

• Audio‑focused series design: Belongs to Nichicon's LKG family, which is described for high‑grade audio equipment, aligning component selection with acoustic performance goals.
• High voltage capability: 80 V rating lets designers use this capacitor on higher DC bus or amplifier supply rails without increasing capacitance bank count.
• Low dissipation factor: tanδ 0.20 at 20°C/120 Hz translates to lower dielectric losses and reduced heat generation in audio signal paths and supply smoothing.
• Robust ripple handling: 2.1 A low‑frequency ripple current rating supports effective power filtering under continuous audio load conditions.
• Predictable endurance: 1000 hours at 85°C endurance specification provides a defined life expectation for thermal and time‑dependent designs.
• Assembly‑friendly package: Snap‑in, radial can format and tray packing simplify placement and handling for production environments.

Why Choose LKG1K681MESYCK?

LKG1K681MESYCK combines audio‑oriented design heritage from the LKG series with measurable electrical characteristics—680 µF at 80 V, low tanδ, solid ripple current rating, and a defined 1000‑hour endurance at 85°C—making it a fit for engineers specifying capacitors for high‑fidelity power supply and decoupling applications. The snap‑in radial package and tray packing support efficient assembly and integration into professional audio hardware.

This part is suitable for designers who prioritize verifiable electrical performance and predictable life behavior in audio equipment power stages, and who require RoHS‑compliant components from a documented series focused on sound quality.

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