LAK2D391MELZ35

The LAK2D391MELZ35 is a Nichicon LAK series aluminum electrolytic capacitor in a snap-in, radial can package designed for general-purpose power applications. It delivers 390 µF capacitance at a 200 V rating with robust ripple handling and extended endurance for demanding operating conditions.

Built for equipment exposed to fluctuating voltages, this part combines high-voltage capability, a snap-in PCB mounting style, and safety features for abnormal voltage events—making it suitable for industrial and commercial power circuitry where long-term reliability and serviceability matter.

Key Features

• Capacitance & Voltage — 390 µF nominal capacitance with a 200 V rated voltage and ±20% tolerance, providing bulk energy storage for high-voltage power rails.
• High Ripple Current Capability — Rated ripple current of 1.2 A at 120 Hz and 1.44 A at 10 kHz, supporting sustained AC ripple handling in power-filtering applications.
• Endurance at Elevated Temperature — 2000 hours life at 105°C when subjected to rated ripple and bias, enabling reliable performance in high-temperature environments.
• Low Leakage — Specified leakage current of approximately 0.83 mA, minimizing steady-state losses on high-voltage rails.
• Safety Design — Improved safety features and a pressure relief vent designed to operate under abnormal excessive voltage without dangerous failure modes.
• Package & Mounting — Snap-in terminal, radial can package (φ22 × 35 mm) for secure PCB mounting and straightforward assembly; supplied in tray packing suitable for mass production.
• Operating Range & Compliance — Rated for −25°C to +105°C operation and compliant with RoHS (2011/65/EU, (EU)2015/863).

Typical Applications

• General-purpose power filtering — Bulk smoothing and decoupling on high-voltage power rails in industrial and commercial equipment.
• Equipment subject to voltage fluctuation — Designed for systems that experience fluctuating supply voltages, benefiting from the LAK series’ safety and abnormal-voltage tolerance.
• High-temperature environments — Power assemblies and modules operating up to 105°C where long ripple-endurance is required.

Unique Advantages

• High-voltage capability: 200 V rating provides headroom for high-voltage power systems without stepping up component count.
• Robust ripple performance: 1.2 A (120 Hz) and 1.44 A (10 kHz) ripple handling reduces the need for parallel components to share AC stress.
• Extended high-temperature life: 2000 hours at 105°C ensures predictable long-term behavior under elevated operating temperatures.
• Safety-oriented construction: Pressure relief vent and enhanced abnormal-voltage tolerance offer safer failure modes in fluctuating-voltage applications.
• Factory-friendly package: Snap-in radial can in tray packing supports mass-production workflows and reliable PCB installation.
• Regulatory compliance: RoHS compliance supports use in products targeting restricted-substance requirements.

Why Choose LAK2D391MELZ35?

The LAK2D391MELZ35 positions itself as a durable, high-voltage aluminum electrolytic solution for designers needing reliable bulk capacitance, strong ripple handling, and predictable life at elevated temperatures. Its snap-in can package and tray packing streamline assembly for production environments while the safety features address applications where supply voltages can vary.

Choose this Nichicon LAK series part when your design requires 390 µF at 200 V with validated endurance (2000 h at 105°C), measurable low leakage, and features that support safe operation under abnormal voltage conditions.

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