LAK2G680MELZ25ZB

The LAK2G680MELZ25ZB is a snap‑in terminal aluminum electrolytic capacitor manufactured by Nichicon. It provides 68 µF of capacitance at a 400 V rating in a compact 22 mm × 25 mm can‑type package designed for radial snap‑in mounting.

Engineered for applications exposed to fluctuating supply voltages, this part combines high voltage capability, 2000 hours endurance at 105°C under rated ripple, and improved safety features to support reliable power filtering and energy‑storage functions in industrial and commercial equipment.

Key Features

• Capacitance & Voltage — 68 µF capacitance rated for 400 V, with a tolerance of ±20% (at 120 Hz, 20°C).
• High‑temperature Endurance — Withstands 2000 hours application of rated ripple current at 105°C; after testing the capacitance change remains within ±20% and leakage current stays within initial specified value.
• Ripple Current Capability — Rated ripple current: 400 mA at 120 Hz and 460 mA at 10 kHz, supporting AC ripple handling in power supply and conditioning circuits.
• Safety Performance — Pressure relief vent designed to operate without flames or hazardous dispersion; for 400 V, capacitances under 100 µF carry a limited DC current test rating of 2 A under the specified test voltages per the datasheet.
• Leakage Current Specification — Initial leakage current defined as I ≤ 3√(C·V) µA after 5 minutes’ application of rated voltage at 20°C, enabling predictable leakage behavior for design margins.
• Operating Range & Construction — Polarized aluminum electrolytic in a radial can (snap‑in) package; operating temperature range −25°C to +105°C and compact dimensions 22 mm (φ) × 25 mm (L).
• Regulatory — Compliant with RoHS (2011/65/EU, (EU)2015/863).

Typical Applications

• Power supply filtering — Bulk smoothing and ripple suppression for high‑voltage DC rails in industrial and commercial power supplies.
• Power conditioning & UPS — Energy buffering and transient handling in power conditioning modules and uninterruptible power supplies operating in environments with voltage fluctuations.
• Inverters and converters — DC link and decoupling use in inverter and converter stages where a compact high‑voltage capacitor is required.
• Industrial equipment — General‑purpose filtering and energy storage in machinery and equipment exposed to unstable or fluctuating mains voltages.

Unique Advantages

• High voltage in a compact shell: 400 V rating with a 22 mm × 25 mm snap‑in can provides a space‑efficient solution for high‑voltage DC circuits.
• Designed for sustained ripple stress: Rated ripple currents and a 2000‑hour endurance at 105°C help ensure long‑term performance under continuous ripple loading.
• Predictable leakage behavior: Leakage current specified by I ≤ 3√(C·V) µA enables accurate leakage budgeting during design.
• Safety features for abnormal voltage: Pressure relief venting and limited DC current test ratings (2 A for C < 100 µF at 400 V test conditions) reduce risk under excessive voltage events.
• RoHS compliance: Conforms to applicable RoHS directives for environmental and regulatory compatibility.
• Snap‑in mounting: Radial snap‑in package simplifies PCB retention and mechanical stability in vertical can configurations.

Why Choose LAK2G680MELZ25ZB?

The LAK2G680MELZ25ZB is positioned where compact, high‑voltage capacitance and sustained ripple endurance are required. With a 400 V rating, 68 µF capacitance, and a 2000‑hour endurance at 105°C, it is suitable for designers specifying robust power‑stage smoothing and energy storage components for equipment operating in areas with fluctuating voltages.

Manufactured by Nichicon and conforming to RoHS, this snap‑in aluminum electrolytic offers predictable electrical characteristics (leakage, tan δ, ripple current) and safety‑focused design details—making it a practical choice for engineers balancing performance, reliability, and board‑level integration.

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