LAK2D681MELC30ZB

The LAK2D681MELC30ZB is a snap-in terminal aluminum electrolytic capacitor from Nichicon’s LAK series, rated at 680 µF and 200 V. It is a polarized, radial can-style capacitor designed for general-purpose use where elevated temperature endurance and tolerance to voltage fluctuation are required.

Engineered for applications exposed to varying supply conditions, this part delivers rated ripple-current endurance at high temperature and includes built-in safety measures for abnormal over-voltage events. It is RoHS compliant.

Key Features

• Capacitance & Rated Voltage – 680 µF nominal capacitance with a 200 V rated voltage and ±20% tolerance at 120 Hz, 20°C.
• High-temperature Endurance – Designed for operation from −25°C to +105°C with endurance specified for 2000 hours at 105°C under rated ripple conditions.
• Rated Ripple Current – Supports 1.7 A at 120 Hz and 2.04 A at 10 kHz, enabling reliable ripple handling for prolonged use at elevated temperature.
• Snap-in Radial Package – Snap-in terminal, radial can packaging for robust chassis/PCB mounting and secure mechanical retention.
• Improved Safety Features – LAK series includes safety design elements such as a pressure relief vent that operates without generating flames or dispersion of parts under abnormal excessive voltage.
• RoHS Compliance – Conforms to RoHS directives (2011/65/EU, (EU)2015/863).

Typical Applications

• General-purpose industrial equipment – Suitable for devices categorized as general purpose that require reliable capacitance at elevated temperatures.
• Equipment operating in voltage-fluctuating environments – Intended for systems exposed to fluctuating or unstable supply voltages where enhanced safety and endurance are needed.
• High-temperature environments – Useful in applications that must sustain performance at up to 105°C for extended periods.

Unique Advantages

• Long endurance at elevated temperature: Specified to withstand 2000 hours of rated ripple current at 105°C, supporting designs that demand long-term thermal reliability.
• Measurable ripple performance: Clear ripple current ratings (1.7 A at 120 Hz, 2.04 A at 10 kHz) enable predictable thermal and electrical design margins.
• Built-in safety behavior: Pressure relief vent and safety test conditions reduce the risk of dangerous failure modes during abnormal excessive voltage events.
• Secure snap-in mounting: Radial, snap-in can package provides mechanical stability for assemblies subject to vibration or handling.
• Regulatory compliance: RoHS conformity supports deployment in regulated product lines and regions.
• Part of an extended-voltage series: The LAK family offers extended voltage options (200 V, 400 V, 420 V), allowing selection across a range of system voltages within the same product family.

Why Choose LAK2D681MELC30ZB?

The LAK2D681MELC30ZB combines a substantial 680 µF capacitance with a 200 V rating and proven high-temperature endurance to meet the needs of general-purpose equipment operating in challenging electrical and thermal conditions. Its defined ripple-current specifications and safety-oriented design make it a practical choice where reliability under voltage fluctuation is a priority.

This part is well suited to engineers and procurement teams specifying capacitors for systems that require predictable ripple handling, sustained performance at up to 105°C, and RoHS compliance, while benefiting from the mechanical convenience of snap-in mounting.

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