LKX2G681MESC50

The LKX2G681MESC50 is a Nichicon snap‑in aluminum electrolytic capacitor specified at 680 µF and 400 V. Designed for audio equipment and switching power supplies, it provides bulk capacitance and high‑voltage filtering in a radial, snap‑in can package.

With a 105°C rated temperature range and a 2000‑hour endurance at 105°C, this part targets designs that require sustained high‑temperature operation, reliable ripple handling, and a polarized high‑voltage smoothing solution in a tray‑packed format for production assembly.

Key Features

• Capacitance & Voltage — 680 µF nominal capacitance at 400 V rated voltage, suitable for high‑voltage bulk and smoothing applications.
• High‑temperature Endurance — Endurance specified as 2000 hours at 105°C under rated conditions, with post‑test limits defined for capacitance, tan δ and leakage current.
• Ripple Current Handling — Rated ripple current of 2.12 A at 120 Hz (105°C) and a high‑frequency ripple current value of 3.032 A at 50 kHz, enabling effective filtering across audio and switching frequencies.
• Leakage Current — Specified leakage current of 1560 µA (measured after rated voltage application), allowing designers to budget standby and bleed currents.
• Operating Temperature Range — –25°C to +105°C, matching the 400 V series category limits for high‑voltage parts in the LKX family.
• Package & Mounting — Radial, snap‑in can (φ35 × 50 mm) for secure board mounting and mechanical stability in high‑vibration or production environments; supplied in tray packing.
• Tolerance & Polarization — Capacitance tolerance ±20% (120 Hz, 20°C); polarized electrolytic construction for DC applications.
• RoHS Compliant — Manufactured in compliance with RoHS requirements.

Typical Applications

• Audio Equipment Power Supplies — Bulk filtering and smoothing where high‑voltage DC rails and sustained ripple handling are required for amplifier and preamplifier systems.
• Switching Power Supplies — Bulk capacitors for high‑voltage SMPS stages, providing energy storage and smoothing on DC buses.
• General Purpose High‑Voltage Electronics — Use in equipment requiring polarized high‑voltage capacitance and defined endurance at elevated temperatures.

Unique Advantages

• 400 V Rating: Allows use on high‑voltage DC rails where lower‑voltage capacitors are unsuitable.
• High Ripple Capability: 2.12 A at 120 Hz and 3.032 A at 50 kHz provide measurable ripple performance for both low‑ and high‑frequency filtering needs.
• 105°C, 2000‑hour Endurance: Designed to maintain performance after extended exposure to high operating temperatures under rated ripple and bias.
• Snap‑in Radial Can: Provides robust mechanical retention and predictable board mounting for production assembly.
• Tray Packaging & Mass Production Availability: Supplied in tray packing and listed as mass production status for volume procurement and assembly workflows.
• Clear Electrical Limits: Specified leakage current and ±20% tolerance enable precise design margining for power and audio applications.

Why Choose LKX2G681MESC50?

The LKX2G681MESC50 combines high capacitance and a 400 V rating with proven thermal endurance to address high‑voltage smoothing and bulk energy needs in audio equipment and switching power supplies. Its snap‑in can package and tray packing support secure mounting and production assembly, while measured ripple and leakage specifications let engineers design with confidence around actual performance figures.

Manufactured by Nichicon and compliant with RoHS, this part is suited for designers seeking a reliable, high‑voltage electrolytic solution for sustained high‑temperature operation and defined ripple handling in general purpose and audio‑focused power designs.

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