LAK2D181MELB20ZB

The LAK2D181MELB20ZB is a snap-in terminal type aluminum electrolytic capacitor designed for general-purpose power applications. It delivers 180 µF at 200 V in a φ30 × 20 mm radial can with snap-in mounting, providing a compact solution for high-voltage smoothing and energy storage.

Engineered for robust thermal performance, this capacitor is rated for operation from −25°C to 105°C and is specified to withstand rated ripple current for 2000 hours at 105°C. The LAK series incorporates improved safety features for abnormal over-voltage conditions and is RoHS compliant.

Key Features

• Capacitance & Voltage — 180 µF nominal capacitance with a 200 V rated voltage and capacitance tolerance of −20% to +20%.
• High-Temperature Endurance — Specified to endure 2000 hours at 105°C under rated ripple current, maintaining capacitance within ±20% after the endurance test.
• Operating Temperature Range — Rated for use from −25°C to +105°C to support applications exposed to elevated ambient temperatures.
• Snap-in Radial Can Package — φ30 × 20 mm can with snap-in terminals for secure board retention and convenient assembly in mass-production environments.
• Ripple Current Capability — 700 mA at 120 Hz (low frequency) and 840 mA at 10 kHz (high frequency) to support smoothing and filtering tasks under AC ripple conditions.
• Safety Features — Designed with improved safety measures for abnormally excessive voltage and a pressure relief vent mechanism that operates under abnormal conditions without dangerous flames or dispersion.
• RoHS Compliant — Meets RoHS directives as stated in the product datasheet.

Typical Applications

• General-purpose power systems — Bulk smoothing and energy storage in assemblies requiring a 200 V, 180 µF capacitor.
• Equipment in voltage-fluctuating environments — Suited to designs that must tolerate variable supply conditions thanks to enhanced safety features and stable performance under ripple stress.
• High-temperature installations — Applications that demand sustained operation at or near 105°C, where long endurance is required.

Unique Advantages

• Long endurance at elevated temperature — 2000 hours at 105°C under rated ripple current provides predictable aging behavior and lifecycle planning.
• High ripple tolerance — Specified ripple current ratings at both 120 Hz and 10 kHz support filtering across common power frequencies.
• Robust safety design — Pressure relief vent and improved abnormal-voltage protection reduce risk of hazardous failure modes.
• Compact snap-in form factor — φ30 × 20 mm radial can with snap-in terminals simplifies mechanical retention and assembly for high-volume production.
• Standards compliance — RoHS compliance supports environmental and regulatory requirements for product builds.

Why Choose LAK2D181MELB20ZB?

The LAK2D181MELB20ZB combines a 200 V rating and 180 µF capacitance with long 105°C endurance and solid ripple performance, making it a practical choice for designers needing reliable energy storage and smoothing in challenging thermal and electrical environments. Its snap-in radial can simplifies board-level mounting for production assemblies.

This part is suited to engineers and procurement teams specifying capacitors for general-purpose power electronics, equipment operating in voltage-fluctuating areas, and applications where long-term stability at elevated temperature is important. Backed by Nichicon’s LAK series design characteristics, it offers predictable electrical behavior and safety-focused construction.

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