LKX2D681MESB30

The LKX2D681MESB30 is a polarized snap-in aluminum electrolytic capacitor from Nichicon's LKX series, optimized for audio equipment and switching power supply applications. It combines a 680 µF capacitance with a 200 V rated voltage in a radial, can-style snap-in package designed for secure board mounting.

Designed as part of a 105°C standard series with selected materials for improved acoustic characteristics, this component targets engineers who need reliable high-voltage filtering and decoupling with long-term thermal endurance and RoHS compliance (2011/65/EU, (EU)2015/863).

Key Features

• Capacitance & Voltage — 680 µF capacitance rated at 200 V, with capacitance tolerance of ±20% (measured at 120 Hz, 20°C).
• Mounting & Package — Snap-in terminal mounting in a radial can (snap-in) package for robust mechanical retention on PCBs.
• Temperature Range & Reliability — Rated for operation from −40°C to +105°C with an endurance specification of 2000 hours at 105°C under D.C. bias plus rated ripple current.
• Ripple Current Handling — Rated ripple current: 1.75 A at 120 Hz and 2.625 A at 50 kHz, with frequency coefficients defined in the LKX series data for higher-frequency operation.
• Acoustic-Optimized Materials — Part of a series that uses selected materials to achieve superior acoustic sound for audio applications.
• Shelf Life & Endurance — Meets shelf-life recovery and endurance requirements after storage and voltage treatment as specified in the LKX series data.
• RoHS Compliance — Conforms to the RoHS directive (2011/65/EU, (EU)2015/863).
• Identification — Marked with gold-colored lettering on a black sleeve for clear part identification.
• Compact Dimensions — Size approximately 30 × 30 mm (L × D) for space-conscious power designs.

Typical Applications

• Audio Equipment — High-voltage filtering and smoothing in audio power supplies where acoustic performance and low-noise behavior are important.
• Switching Power Supplies — Bulk and output filtering in switch-mode power supplies requiring 200 V rated capacitors with strong ripple-handling capability.
• General Purpose Power Filtering — Decoupling and energy-storage roles on high-voltage rails in commercial and industrial electronics.

Unique Advantages

• High-temperature endurance: Endurance test specification of 2000 hours at 105°C ensures stable capacitance, tan δ, and leakage current after prolonged thermal stress.
• Designed for audio quality: Selected materials in the LKX series are specified to enhance acoustic sound, supporting audio-focused power supply designs.
• Robust ripple performance: Defined ripple current ratings at 120 Hz and 50 kHz provide verifiable performance for both low- and high-frequency filtering requirements.
• Secure snap-in mounting: Radial snap-in package offers reliable mechanical retention for through-hole board assemblies in robust power systems.
• Regulatory compliance: RoHS conformity supports environmental and regulatory requirements for commercial electronics.

Why Choose LKX2D681MESB30?

The LKX2D681MESB30 positions itself as a reliable, high-voltage aluminum electrolytic option for designers who need proven thermal endurance, measurable ripple capability, and audio-minded material selection. Its snap-in can package and polarized construction make it suitable for power supply filtering and energy-storage roles where stable performance at elevated temperatures is required.

This part is well suited to OEMs and design teams building audio equipment, switching power supplies, and other high-voltage electronics that demand validated endurance and RoHS compliance. As part of Nichicon's LKX series, it delivers specification-backed performance for longer-term reliability in fielded products.

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