LAK2D181MELZ25

The LAK2D181MELZ25 from Nichicon is an aluminum electrolytic, snap-in terminal capacitor designed for general-purpose power applications. It delivers 180 µF at a 200 V rating with polarized construction and a compact radial can snap-in package.

Engineered for demanding thermal and electrical environments, this part is specified for operation from −25 °C to +105 °C and is built to withstand 2000 hours of rated ripple current at 105 °C. Improved safety measures for abnormally excessive voltage make it suitable for equipment exposed to fluctuating supply conditions.

Key Features

• Capacitance & Voltage — 180 µF nominal capacitance at a 200 V rated voltage with ±20% tolerance (at 120 Hz, 20 °C).
• High-temperature Endurance — Specified for operation to +105 °C and endurance of 2000 hours at 105 °C with DC bias plus rated ripple current applied.
• Snap-in Radial Can — Snap-in terminal mounting for secure chassis/PCB installation in radial can package (polarized).
• Ripple Current Capability — Rated ripple handling of 700 mA at 120 Hz and 840 mA at 10 kHz, supporting demanding AC ripple environments.
• Safety & Overvoltage Behavior — Improved safety features and a pressure-relief vent design to operate without dangerous conditions under abnormal excessive voltage.
• Electrical Characteristics — Leakage current defined as I ≤ 3√CV (μA) after 5 minutes’ application of rated voltage at 20 °C; tan δ ≤ 0.20 (120 Hz, 20 °C).
• RoHS Compliance — Conforms to RoHS directives (2011/65/EU, (EU)2015/863).
• Compact Footprint — Size: L 2.5 cm × D 2.2 cm for space-conscious designs.

Typical Applications

• Industrial equipment exposed to fluctuating voltage — Robust safety and endurance characteristics make this capacitor suitable for systems where supply voltage varies.
• General-purpose power supplies and converters — Bulk energy storage and ripple smoothing at 200 V systems with high-temperature capability.
• High-temperature electronics — Reliable operation and specified endurance at +105 °C support equipment operating in elevated ambient temperatures.

Unique Advantages

• Long high-temperature endurance: Designed to withstand 2000 hours of rated ripple current at 105 °C, supporting durability in thermally stressed systems.
• Enhanced safety under abnormal voltages: Built-in safety measures and pressure-relief behavior reduce risk when voltage excursions occur.
• Strong ripple performance: Rated ripple currents at both low and high frequencies (700 mA at 120 Hz, 840 mA at 10 kHz) enable effective filtering in AC-rich environments.
• Predictable leakage behavior: Leakage current limited by the I ≤ 3√CV formula after initial application of rated voltage, aiding design margin calculations.
• Space-efficient radial snap-in package: Compact L × D footprint with snap-in terminals simplifies mechanical mounting and chassis integration.
• RoHS compliant: Meets current RoHS directive requirements for environmentally conscious designs.

Why Choose LAK2D181MELZ25?

The LAK2D181MELZ25 combines a proven aluminum electrolytic core with snap-in mounting, targeted endurance at elevated temperature, and safety-oriented construction for equipment exposed to fluctuating voltages. Its specified ripple handling and controlled leakage make it straightforward to design into power systems requiring dependable bulk capacitance at 200 V.

This capacitor is well suited to engineers and procurement teams specifying components for high-temperature, general-purpose power electronics where long-term reliability and clear electrical limits are required. Backed by Nichicon series performance data and RoHS compliance, it delivers a reliable, verifiable capacitor option for production designs.

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